Author: "Itzhak Roditi" - Searchworks@Jio Institute Digital Library Search Results

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83 results on '"Itzhak Roditi"'

1. Introduction to Bell’s Inequality in Quantum Mechanics

Author: Marcelo Santos Guimaraes, Itzhak Roditi, and Silvio Paolo Sorella
Subjects: entanglement, Bell’s inequality, Elementary particle physics, QC793-793.5
Abstract: A pedagogical introduction to Bell’s inequality in Quantum Mechanics is presented. Several examples, ranging from spin 1/2 to coherent and squeezed states are worked out. The generalization to Mermin’s inequalities and to GHZ states is also outlined.
Published: 2024
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2. Probing Mermin’s inequalities violations through pseudospin operators

Author: Philipe De Fabritiis, Itzhak Roditi, and Silvio P. Sorella
Subjects: Quantum physics, Quantum correlations, Mermin’s inequalities, Entanglement, Physics, QC1-999
Abstract: The violation of Mermin’s inequalities is analyzed by making use of two different Bell setups built with pseudospin operators. Employing entangled states defined by means of squeezed and coherent states, the expectation value of Mermin’s polynomials Mn is evaluated for n=3 and n=4. In each case, we analyze the correlator 〈Mn〉 and identify the set of parameters leading to the violation of Mermin’s inequalities and to the saturation of the bound predicted by Quantum Mechanics.
Published: 2023
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3. Mermin's inequalities in Quantum Field Theory

Author: Philipe De Fabritiis, Itzhak Roditi, and Silvio Paolo Sorella
Subjects: Physics, QC1-999
Abstract: A relativistic Quantum Field Theory framework is devised for Mermin's inequalities. By employing smeared Dirac spinor fields, we are able to introduce unitary operators which create, out of the Minkowski vacuum |0〉, GHZ-type states. In this way, we are able to obtain a relation between the expectation value of Mermin's operators in the vacuum and in the GHZ-type states. We show that Mermin's inequalities turn out to be maximally violated when evaluated on these states.
Published: 2023
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4. Towards solving the BCS Hamiltonian gap in near-term quantum computers

Author: Nahum Sá, Ivan S. Oliveira, and Itzhak Roditi
Subjects: Variational Quantum Algorithms, Quantum computing, Quantum simulation, NISQ, Physics, QC1-999
Abstract: In this work, using a Noisy Intermediate-Scale Quantum (NISQ) framework, we obtain the gap of a Bardeen–Cooper–Schrieffer (BCS) Hamiltonian. This could lead to interesting implications for superconductivity research. For such task, we choose to use the Variational Quantum Deflation and analyze the hardware restrictions that are needed to find the energy spectra on current quantum hardware.We also compare two different kinds of classical optimizers, Constrained Optimization BY Linear Approximations (COBYLA) and Simultaneous Perturbation Stochastic Approximation (SPSA), and study the effect of decoherence caused by the presence of noise when using simulations in real devices. We apply our method for an example with both 2 and 5 qubits. Furthermore, we show how to approximate the gap within one standard deviation, even with the presence of noise.
Published: 2023
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5. An Application of Quantum Annealing Computing to Seismic Inversion

Author: Alexandre M. Souza, Eldues O. Martins, Itzhak Roditi, Nahum Sá, Roberto S. Sarthour, and Ivan S. Oliveira
Subjects: quantum computing, quantum annealing, seismic inversion, linear equations, binary optimization, Physics, QC1-999
Abstract: Quantum computing, along with quantum metrology and quantum communication, are disruptive technologies that promise, in the near future, to impact different sectors of academic research and industry. Among the computational challenges with great interest in science and industry are the inversion problems. These kinds of numerical procedures can be described as the process of determining the cause of an event from measurements of its effects. In this paper, we apply a recursive quantum algorithm to a D-Wave quantum annealer to solve a small scale seismic inversions problem. We compare the obtained results from the quantum computer to those derived from a classical algorithm. The accuracy achieved by the quantum computer is at least as good as that of the classical computer.
Published: 2022
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6. Bethe states for the two-site Bose–Hubbard model: A binomial approach

Author: Gilberto Santos, Changrim Ahn, Angela Foerster, and Itzhak Roditi
Subjects: Physics, QC1-999
Abstract: We calculate explicitly the Bethe vectors states by the algebraic Bethe ansatz method with the gl(2)-invariant R-matrix for the two-site Bose–Hubbard model. Using a binomial expansion of the n-th power of a sum of two operators we get and solve a recursion equation. We calculate the scalar product and the norm of the Bethe vectors states. The form factors of the imbalance current operator are also computed. Keywords: Bethe ansatz, Bethe vectors, Form factors, Bose–Einstein condensation
Published: 2015
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7. Molecular interferometers: effects of Pauli principle on entangled-enhanced precision measurements

Author: P Alexander Bouvrie, Ana P Majtey, Francisco Figueiredo, and Itzhak Roditi
Subjects: molecular BEC, fermion interference, quantum metrology, Science, Physics, QC1-999
Abstract: Feshbach molecules forming a Bose–Einstein condensate (BEC) behave as non-ideal bosonic particles due to their underlying fermionic structure. We study the observable consequences of the fermion exchange interactions in the interference of molecular BECs for entangled-enhanced precision measurements. Our many-body treatment of the molecular condensate is based on an ansatz of composite two-fermion bosons which accounts for all possible fermion exchange correlations present in the system. The Pauli principle acts prohibitively on the particle fluctuations during the interference process leading to a loss of precision in phase estimations. However, we find that, in the regime where molecular dissociations do not jeopardize the interference dynamics, measurements of the phase can still be performed with a precision beyond the classical limit comparable to atomic interferometers. We also show that the effects of Pauli principle increases with the noise of the particle detectors such that molecular interferometers would require more efficient detectors.
Published: 2019
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8. Quantum-classical correspondence of a system of interacting bosons in a triple-well potential.

Author: E. R. Castro, Jorge Chávez-Carlos, Itzhak Roditi, Lea F. Santos, and Jorge G. Hirsch
Published: 2021
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9. Implementation of a two-stroke quantum heat engine with a collisional model

Author: Filipe V. Melo, Nahum Sá, Itzhak Roditi, Alexandre M. Souza, Ivan S. Oliveira, Roberto S. Sarthour, and Gabriel T. Landi
Subjects: TEMPERATURA, Quantum Physics, FOS: Physical sciences, Quantum Physics (quant-ph)
Abstract: We put forth a quantum simulation of a stroboscopic two-stroke thermal engine in the IBMQ processor. The system consists of a quantum spin chain connected to two baths at their boundaries, prepared at different temperatures using the variational quantum thermalizer algorithm. The dynamics alternates between heat and work strokes, which can be separately designed using independent quantum circuits. The results show good agreement with theoretical predictions, showcasing IBMQ as a powerful tool to study thermodynamics in the quantum regime, as well as the implementation of variational quantum algorithms in real-world quantum computers. It also opens the possibility of simulating quantum heat transport across a broad range of chain geometries and interactions.
Published: 2022

10. Towards solving the BCS Hamiltonian gap in Near-Term Quantum Computers

Author: Nahum Sá, Ivan S. Oliveira, and Itzhak Roditi
Subjects: Quantum Physics, Variational Quantum Algorithms, Quantum computing, Quantum simulation, NISQ, FOS: Physical sciences, General Physics and Astronomy, Quantum Physics (quant-ph)
Abstract: In this work, using a Noisy Intermediate-Scale Quantum (NISQ) framework, we obtain the gap of a Bardeen- Cooper-Schrieffer (BCS) Hamiltonian. This could lead to interesting implications for superconductivity re-search. For such task, we choose to use the Variational Quantum Deflation and analyze the hardware restrictions that are needed to find the energy spectra on current quantum hardware.We also compare two different kinds of classical optimizers, Constrained Optimization BY Linear Approx-imations (COBYLA) and Simultaneous Perturbation Stochastic Approximation (SPSA), and study the effect of decoherence caused by the presence of noise when using simulations in real devices. We apply our method for an example with both 2 and 5 qubits. Furthermore, we show how to approximate the gap within one standard deviation, even with the presence of noise., Results in Physics, 44, ISSN:2211-3797
Published: 2021

11. beta-Variational autoencoder as an entanglement classifier

Author: Nahum Sá and Itzhak Roditi
Subjects: Physics, Quantum Physics, business.industry, General Physics and Astronomy, Pattern recognition, Deep learning, Quantum entanglement, Space (mathematics), Autoencoder, Separable space, Set (abstract data type), Separable state, Quantum state, Entanglement witness, Artificial intelligence, Representation (mathematics), business
Abstract: We focus on using an architecture similar to the beta-Variational Autoencoder (beta-VAE) to discriminate if a quantum state is entangled or separable based on measurements. We split the data into two sets, the set of local and correlated measurements. Using the latent space, which is a low dimensional representation of the data, we show that restricting ourselves to the set of local data it is not possible to distinguish between entangled and separable states. Meanwhile, when considering both correlated and local measurements, an accuracy of over 80% is attained in the structure of the latent space., Physics Letters A, 417, ISSN:0375-9601, ISSN:0031-9163, ISSN:1873-2429
Published: 2021

12. An exact solution method for the enumeration of connected Feynman diagrams

Author: Itzhak Roditi and Erick Castro
Subjects: Statistics and Probability, High Energy Physics - Theory, Pure mathematics, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, symbols.namesake, 0103 physical sciences, Taylor series, FOS: Mathematics, Feynman diagram, Mathematics - Combinatorics, 010306 general physics, Contraction (operator theory), Quantum, Mathematical Physics, Mathematics, 010308 nuclear & particles physics, Generating function, Statistical and Nonlinear Physics, Mathematical Physics (math-ph), Enumerative combinatorics, Exact solutions in general relativity, High Energy Physics - Theory (hep-th), Modeling and Simulation, symbols, Combinatorics (math.CO), Asymptotic expansion
Abstract: We completely generalize previous results related to the counting of connected Feynman diagrams. We use a generating function approach, which encodes the Wick contraction combinatorics of the respective connected diagrams. Exact solutions are found for an arbitrary number of external legs, and a general algorithm is implemented for this calculus. From these solutions, we calculate many asymptotics expansion terms for a simple analytical tool (Taylor expansion theorem). Our approach offers new perspectives in the realm of Feynman diagrams enumeration (or zero-dimensional quantum field theory)., 17 pages, 1 figure
Published: 2020

13. Entanglement between two spatially separated ultracold interacting Fermi gases

Author: Ana P. Majtey, Itzhak Roditi, P. Alexander Bouvrie, and Eloisa Cuestas
Subjects: Condensed Matter::Quantum Gases, Physics, Quantum Physics, ULTRACOLD FERMI GASES, Condensed Matter::Other, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, purl.org/becyt/ford/1.3 [https], Fermion, Quantum entanglement, purl.org/becyt/ford/1 [https], Quantum technology, Quantum mechanics, MOLECULAR CONDENSATES, Quantum Physics (quant-ph), Fermi gas, ENTANGLEMENT, Quantum, Computer Science::Distributed, Parallel, and Cluster Computing, Ansatz, Fermi Gamma-ray Space Telescope, Boson
Abstract: Multiparticle entangled states, essential ingredients for modern quantum technologies, are routinely generated in experiments of atomic Bose-Einstein condensates (BECs). However, the entanglement in ultracold interacting Fermi gases has not been yet exploited. In this work, by using an ansatz of composite bosons, we show that many-particle entanglement between two fermionic ensembles localized in spatially separated modes can be generated by splitting an ultracold interacting Fermi gas in the (molecular) BEC regime. This entanglement relies on the fundamental fermion exchange symmetry of molecular constituents and might be used for implementing Bell test of quantum nonlocality in oncoming experiments., Comment: 9 pages, 5 figures
Published: 2019
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14. A recursive enumeration of connected Feynman diagrams with an arbitrary number of external legs in the fermionic non-relativistic interacting gas

Author: Itzhak Roditi and Erick Castro
Subjects: High Energy Physics - Theory, Statistics and Probability, Pure mathematics, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, symbols.namesake, 0103 physical sciences, FOS: Mathematics, Mathematics - Combinatorics, Partition (number theory), Feynman diagram, Quantum field theory, 010306 general physics, Mathematical Physics, Mathematics, 010308 nuclear & particles physics, Order (ring theory), Statistical and Nonlinear Physics, Function (mathematics), Mathematical Physics (math-ph), Composition (combinatorics), Enumerative combinatorics, High Energy Physics - Theory (hep-th), Quantum Gases (cond-mat.quant-gas), Modeling and Simulation, symbols, Combinatorics (math.CO), Condensed Matter - Quantum Gases, Asymptotic expansion
Abstract: In this work, we generalize a recursive enumerative formula for connected Feynman diagrams with two external legs. The Feynman diagrams are defined from a fermionic gas with a two-body interaction. The generalized recurrence is valid for connected Feynman diagrams with an arbitrary number of external legs and an arbitrary order. The recurrence formula terms are expressed in function of weak compositions of non-negative integers and partitions of positive integers in such a way that to each term of the recurrence correspond a partition and a weak composition. The foundation of this enumeration is the Wick theorem, permitting an easy generalization to any quantum field theory. The iterative enumeration is constructive and enables a fast computation of the number of connected Feynman diagrams for a large amount of cases. In particular, the recurrence is solved exactly for two and four external legs, leading to the asymptotic expansion of the number of different connected Feynman diagrams., Comment: 24 pages, 14 figures
Published: 2018
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15. Measurement of the lifetime of tau-lepton

Author: U. Mjoernmark, Edoardo Castelli, F. Pierre, P. Allen, G. W. Van Apeldoorn, R. J. Apsimon, L. Ventura, V. Ruhlmann, Roland Horisberger, L. Bugge, D. Z. Toet, G. Hamel de Monchenault, Andrey Korytov, G. Ekspong, Itzhak Roditi, Gueorgui Chelkov, Pierre Juillot, M. De Beer, M. Bonesini, Y. Sacquin, Josef Strauss, M.A. Lopez Aguera, Francesca Romana Cavallo, Hans Muller, B. Koene, J.A.M.A. Buytaert, W. Venus, L. Di Ciaccio, Jan Krolikowski, N. N. Khovanski, Mitchell Wayne, M. S. Bilenky, G. Tristam, L.J. Carroll, W. Bartl, R. Pain, P. N. Bogolubov, M. J. Bates, J. A. Valls Ferrer, Giovanni Darbo, Christine Kourkoumelis, P. Siegrist, V. V. Lapin, N. Crosland, S. Simonetti, M. Begalli, E. Dahl-Jensen, Paolo Morettini, J. G. Loken, C. De Clercq, Klaus Hamacher, J. P. Laugier, Natale Demaria, R. Lucock, M. Richardson, G. Meola, Toralf Bernhard Skaali, M. Boratav, D. Gamba, P. Beilliere, M. Battaglia, T. Bolognese, W. J. Murray, R. Strub, J-C. Marin, Spyros Tzamarias, G. Cosme, A. Perrotta, G. Borisov, George Kalkanis, P. B. Renton, G. Voulgaris, M. Pimenta, B. A. Khomenko, M. Baubillier, V. Canale, S. Gumenyuk, R. A. Brenner, Stavros Maltezos, M. Bonapart, O. Barring, Y. Dufour, P. D. Dauncey, Sandor Czellar, D. C. Fries, Patrick Jarry, S. J. Alvsvaag, C. Vander Velde, N. De Groot, G. Rinaudo, G. Sette, A. Elliot Peisert, A. Stocchi, Francesco Navarria, J. Zúñiga, P. Astier, W. Bonivento, P. Weilhammer, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, G. Vegni, N. Brummer, J. Bjarne, P. O. Hulth, T. Tabarelli, P. Van Dam, M. Davenport, G. Polok, A. Ruiz, Winfried Mitaroff, E. Lieb, P. Antilogus, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, G. Matthiae, Marta Calvi, P. Delpierre, I. Herbst, M. Matveev, R. Mc Nulty, I. Lippi, W. Kucewicz, E. K. Johansson, J. Pyyhtia, Geoffrey Smith, D. Johnson, Louis Lyons, W. Klempt, Renato Turchetta, H. De Boeck, S. Tavernier, G. Wormser, E. Daubie, G. E. Theodosiou, Mogens Dam, D. Fassouliotis, Ariella Cattai, F. Couchot, M. Kopf, M. Tyndel, S. C. Blyth, O. Pingot, G. Wilkinson, M.D.M. De Fez Laso, Juan Fuster, Jacques Lemonne, J. Sanchez, C. Bosio, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, T. Kreuzberger, J. Derkaoui, S. Braibant, S. Dagoret, F. Stichelbaut, D. Zavrtanik, A. Tilquin, S. O. Holmgren, L. S. Vertogradov, J. Maillard, M. T. Trainor, P. Vaz, R. Sosnowski, O. Ullaland, Leif J. Jönsson, G. Myatt, F. Adami, V. G. Timofeev, A. G. Frodesen, Pawel Jalocha, Barry King, G. Smadja, L. Mathis, D. Husson, Ugo Gasparini, A. Pullia, J.M. Gago, D. Bertrand, J. Timmermans, I. A. Tyapkin, B.D. Hyams, T. S. Spassoff, Torsten Paul Ake Åkesson, Demetrios Loukas, R. Keranen, Philippe Charpentier, Francisco Matorras, N. Yamdagni, U. Trevisan, H. Furstenau, R. Frühwirth, L. O. Eek, R. C. Shellard, Josef Hrubec, A. M. Segar, A. G. Olshevski, B. Boštjančič, V. Perevozchikov, Theodora Papadopoulou, B. Korzen, Jon Christopher Wikne, C. Defoix, E. I. Rosenberg, A. Campion, S. Volponi, B. Dalmagne, F. Fulda-Quenzer, H. P. Borner, Stefan Schael, A. Lipniacka, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Tiziano Camporesi, A.J. Camacho Rozas, Abdenour Lounis, M.-H. Gros, Laurent Chevalier, M. Fernandez Alonso, D. Radojicic, V. Obraztsov, Jan Ridky, P. Folegati, Z. Hajduk, K. Kurvinen, Maciej Górski, W. Ruckstuhl, Borge Svane Nielsen, J. J. Lozano, Guido Barbiellini, R. Zukanovich Funchal, B. Franek, H. Wahlen, Ariel Goobar, E. Graziani, P. S. Iversen, F. Fontanelli, Maria Roberta Monge, A. Zalewska, Krzysztof Doroba, N. G. Redaelli, R. Moeller, A. Hakansson, Chiara Meroni, J. H. Koehne, Marco Bozzo, T. Hofmokl, Marek Szczekowski, J. M. Brunet, H. Foeth, Roberto Cirio, I. Roncagliolo, L. K. Resvanis, J. E. Hooper, J. Guy, P. Lutz, W. Krupinski, W. T. Meyer, P. V. Chliapnikov, Tord Ekelof, H. Staeck, D. Benedic, P. Abreu, P. Borgeaud, J. P. Gerber, Tim Adye, E. Rosso, H. Klein, P. Beltran, Peter Kluit, F. Naraghi, P. Frenkiel, K. H. Becks, E. Vallazza, Milos Lokajicek, J. Cuevas Maestro, A. Chan, B. Ueberschaer, Massimo Caccia, H. J. Hilke, D. J. Holthuizen, F. Waldner, S. Haider, Antonio Ferrer, Tuure Tuuva, F. Simonetto, F. Kapusta, K. W. Glitza, Clara Troncon, G. Leder, B. Åsman, W.S.C. Williams, J.-E. Augustin, F. Ledroit, E.N. Gazos, M. Schaeffer, B. Loerstad, Eilam Gross, B. Nijjhar, E. Menichetti, Stefano Ragazzi, K. Furnival, C. Walck, A. De Angelis, P. Collins, D. Delikaris, Vladimir Nikolaenko, C. Caso, J. Drees, Fernand Grard, A. Passeri, D. Crennell, F. Mandl, T. Todorov, H. Burmeister, N. van Eijndhoven, J. Werner, L. Tortora, F. J. Harris, C. De La Vaissiere, C. J. Beeston, Daniel Bloch, F. Cao, Ahmimed Ouraou, Wolfgang Adam, M. L. Turluer, B. W. Heck, M. Mazzucato, P. Szymanski, Robert S. Brown, V.M. Golovatyuk, Carlos Lacasta, K. D. Brand, N. I. Zimin, Krzysztof A. Rybicki, H. B. Crawley, D. Isenhower, A. Pinsent, D. Wormald, K. Woschnagg, A. De Min, Joao Varela, V. Falaleev, M. Dracos, J. J. Gomez Y Cadenas, V. Chorowicz, D. Reid, Yu. Belokopytov, S. Squarcia, Matteo Pegoraro, E. C. Katsoufis, G. Gopal, E. G. Anassontzis, R. Holmes, H. Saarikko, M. Voutilainen, G. Grosdidier, W. Dulinski, K. A. J. Forbes, S. D. Hodgson, S. Ueberschaer, G. Galeazzi, J. P. Engel, P. Bambade, K. Moenig, M. V. Castillo Gimenez, E. J. Sanchez, M. Crozon, T. Buran, Gianni Zumerle, P. Roudeau, Alessandra Romero, J. Kesteman, A. Maltezos, G. Damgaard, F. Verbeure, C. Bricman, M. A E Schyns, Martino Margoni, P. F. Honore, E. Fokitis, G. D. Alekseev, Olga Botner, M. Michelotto, V. Gracco, Pavlos Ioannou, Krzysztof Korcyl, A. N. Sissakian, R. Llosa, Claudia J. Stubenrauch, Carmen García, B. Jean-Marie, Mario Sannino, Eleuterio Spiriti, P. Poropat, Andromachi Tsirou, M. A. Houlden, M. Mc Cubbin, K. Hultqvist, Georgios Stavropoulos, P. David, Andre Augustinus, W. K. Van Doninck, F. Richard, W.-D. Apel, C. Matteuzzi, M. Hahn, D. Vilanova, S. Almehed, F. Hahn, S. Marti, U. Kruener-Marquis, Paolo Ronchese, N. J. Kjaer, Paula Eerola, Lucio Cerrito, M. A. Winter, G. E. Kalmus, H. Palka, G. Skjevling, J. W. Lamsa, F. Barao, T. Henkes, B. De Lotto, G. Crosetti, Evgueni Vlasov, E. Higon, R. Seufert, H. Herr, F. Scuri, A. M. Wetherell, L. G. Tkatchev, Jmv Garcia, L. Lanceri, A. Firestone, M. Vollmer, U. Rossi, Paolo Giacomelli, R. Sekulin, S. Delorme, M. Zito, J. J. Hernandez, T. Moa, G. Maehlum, B. Grossetete, Allan Hallgren, Giovanni Valenti, Antonio Baroncelli, Guenakh Mitselmakher, Fares Djama, José Salt, L. Vibert, M. Jonker, William Trischuk, A. Markou, Cristian Stanescu, P. Branchini, H. Schneider, R. Lauhakangas, Tiziano Rovelli, Mikael Berggren, G. Kantardjian, M. Sessa, M. Los, V. Lepeltier, M. Donszelmann, H. Forsbach, C. Ronnqvist, Paolo Checchia, G. Zhang, A. P. Ostankov, Ph. Gavillet, R. Gokieli, Dietrich Liko, P. Privitera, V. Kostukhin, R. Zitoun, M. Turala, Luc Pape, P. Herquet, R. Contri, Piotr Zalewski, U. Nau-Korzen, Manolis Dris, E. Lillethun, V.A. Uvarov, Daniel Treille, J. N. Jackson, P. Kokkinias, J. Lindgren, Nikita Smirnov, F. Carena, Pierre Billoir, M. Pernicka, I. Hietanen, Jose M. Benlloch, A. Grant, Vaclav Vrba, Hans Dijkstra, G. Lenzen, J. E. Campagne, M. Koratzinos, P. Negri, J.H. Bibby, Göran Jarlskog, A. Letessier-Selvon, J. Dolbeau, P.S.L. Booth, P. N. Ratoff, A. Lopez-Fernandez, J. Marco, M. P. Clara, Maria Elena Pol, S. Katsanevas, D. Y. Bardin, T. A. Filippas, M. Regler, P. Yepes, H. Mueller, C. O. Higgins, B. Bouquet, R. Orava, A. Klovning, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Acciarri, M., Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, L., Balandras, A., Banerjee, S., Barczyk, A., Barillere, R., Barone, L., Bartalini, P., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J. G., V, B., Brochu, F., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Cifarelli, L., Cindolo, F., Civinini, C., I, C., Clare, R., Coignet, G., Colijn, A. P., Colino, N., Costantini, S., Cotorobai, F., Cozzoni, B., B. d., La, Csilling, A., Cucciarelli, S., Dai, T. S., Van, J. A., D'Alessandro, R., Asmundis, R. d., Deglon, P., Degre, A., Deiters, K., DELLA VOLPE, Domenico, Denes, P., Denotaristefani, F., Salvo, A. D., Diemoz, M., Dierendonck, D. v., Lodovico, F. D., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M. T., Duchesneau, D., Dufournaud, D., Duinker, P., I, D., Mamouni, H. E., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabre, M., Faccini, R., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., I, F., Forconi, G., Fredj, L., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gau, S. S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z. F., Grenier, G., Grimm, O., Gruenewald, M. W., Guida, M., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Sr, H., Hu, Y., I, I., Jin, B. N., Jones, L. W., Jong, P. d., I, J., Khan, R. A., Kaur, M., Kienzle Focacci, M. N., Kim, D., Kim, J. K., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., V, K., Kraber, M., Kraemer, R. W., Krenz, W., Kruger, A., Kunin, A., P. L., De, I, L., Landi, G., Lassila Perini, K., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., J. M., Le, Leiste, R., Leonardi, E., Levtchenko, P., Li, C., Lokhoded, S., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Lugnier, L., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mans, J., Marchesini, P., Marian, G., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Der, M. v., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G. B., Molnar, P., Monteleoni, B., Moore, R., Moulik, T., Muanza, G. S., Muheim, F., A. J. M., Musy, M., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Nowak, H., Organtini, G., Oulianov, A., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Paramatti, R., Park, H. K., Park, I. H., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Pieri, M., Piroue, P. A., Pistolesi, E., V, P., Pohl, M., Postema, H., Pothier, J., Produit, N., Prokofiev, D. O., Prokofiev, D., Quartieri, J., Rahal Callot, G., Rahaman, M. A., Raics, P., Raja, N., Ramelli, R., Rancoita, P. G., Raspereza, A., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Rhee, T. v., Riemann, S., Riles, K., Robohm, A., Rodin, J., Roe, B. P., Romero, L., Rosca, A., Rosier Lees, S., Rubio, J. A., Ruschmeier, D., Rykaczewski, H., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Schafer, C., V, S., Schmidt Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D. J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Seganti, A., Servoli, L., Shevchenko, S., Shivarov, N., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Stone, A., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Suter, H., Swain, J. D., Szillasi, Z., Sztaricskai, T., Tang, X. W., Tauscher, L., Taylor, L., Tellili, B., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, J., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., I, V., Vicinanza, D., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vogel, H., Vogt, H., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X. L., Wang, Z. M., Weber, A., Weber, M., Wienemann, P., Wilkens, H., S. X., Wu, Wynhoff, S., Xia, L., Z. Z., Xu, Yamamoto, J., Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., J. B., Ye, Yeh, S. C., Zalite, A., Zalite, Y., Zhang, Z. P., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Ziegler, F., Zilizi, G., Zoller, M., L3 (IHEF, IoP, FNWI), LEP (IHEF, IoP, FNWI), Achard, Pablo, Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Pohl, Martin, Sciarrino, Deborah, Aguilarbenitez, M., Ahlen, S., Alpat, B., Alverson, G., Antreasyan, D., Ball, R. C., Banicz, K., Baschirotto, A., Bilei, G. M., Bock, R., Boucham, A., Boutigny, D., Brigljevic, V., Brock, I. C., Busenitz, J., Buytenhuijs, A., Caria, M., Chan, A., Cheng, H. S., Chen, M., Chien, C. Y., Choi, M. T., Clare, I., Cohn, H. O., Cotorbai, F., Delacruz, B., Dalessandro, R., Deasmundis, R., Deboeck, H., Dibitonto, D., Vandierendonck, D., Dilodovico, F., Dorne, I., Drago, E., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Ernenwein, J. P., Fenyi, B., Fernandez, D., Garciaabia, P., Gerald, J., Goldfarb, S., Goldstein, J., Gougas, A., Gratta, G., Hangarter, K., Hartmann, B., Vanhoek, W. C., Hou, S. R., Hu, G., Innocente, V., Janssen, H., Dejong, P., Josamutuberria, I., Kasser, A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kienzlefocacci, M. N., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Korolko, I., Koutsenko, V., Kuijten, H., Deguevara, P. L., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Lieb, E., Lu, W., Lustemann, W., Majumder, G., Mangla, S., Marin, A., Mcnally, D., Vondermey, M., Mi, Y., A. J. W., Morganti, S., Mount, R., Muller, S., Nagy, E., Nahn, S., Nessitedaldi, F., Nippe, A., Ostonen, R., Peach, D., Pei, Y. J., Perretgallix, D., Petrak, S., Pevsner, A., Pinto, J. C., Plyaskin, V., Pojidaev, V., Rahalcallot, G., Rattaggi, M., Read, K., Vanrhee, T., Riemers, B. C., Rind, O., Ro, S., Rodriguez, F. J., Rohner, J. A., Santocchia, A., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmidtkaerst, S., Schmitz, P., Schneegans, M., Sens, J. C., Shoutko, V., Shukla, J., Sopczak, A., Soulimov, V., Stone, H., Strauch, K., Susinno, G. F., Uwer, U., Vandewalle, R. T., Vetlitsky, I., Volkert, R., Vorobiev, I., Wang, J. C., Wittgenstein, F., Xu, J., Yao, X. Y., You, J. M., Zemp, P., Zeng, Y., Zhang, Z., Zhou, B., and Zhou, Y.
Subjects: COLLISIONS, Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, PAIR PRODUCTION, Electron–positron annihilation, FOS: Physical sciences, Elementary particle, ddc:500.2, 01 natural sciences, 7. Clean energy, Resonance (particle physics), JET FRAGMENTATION, DECAYS, High Energy Physics - Experiment, Nuclear physics, Particle decay, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], SILICON MICROVERTEX DETECTOR, PRECISE MEASUREMENT, Limit (mathematics), QCD ANALYSIS, 010306 general physics, L3 EXPERIMENT, Coupling constant, Physics, Muon, Annihilation, TEST BEAM, E+E-PHYSICS, 010308 nuclear & particles physics, ALPHA(S), High Energy Physics::Phenomenology, Detector, Pair production, SPECTRAL FUNCTIONS, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in tau_tau = 293.2 +/- 2.0 (stat) +/- 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, alpha_s is found to be alpha_s(m_tau^2) = 0.319 +/- 0.015(exp.) +/- 0.014 (theory). The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in τ τ =293.2 ± 2.0 (stat) ± 1.5 (syst) fs . The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, α s is found to be α s ( m τ 2 ) = 0.319 ± 0.015 (exp) ± 0.014 (theory). The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in tau_tau = 293.2 +/- 2.0 (stat) +/- 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, alpha_s is found to be alpha_s(m_tau^2) = 0.319 +/- 0.015(exp.) +/- 0.014 (theory).
Published: 2015
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16. Metastability of Bose and Fermi gases on the upper branch

Author: Joshua Squires, André LeClair, and Itzhak Roditi
Subjects: Condensed Matter::Quantum Gases, Physics, FOS: Physical sciences, Scattering length, Mathematical Physics (math-ph), Fermion, 01 natural sciences, 010305 fluids & plasmas, Formalism (philosophy of mathematics), Quantum Gases (cond-mat.quant-gas), Metastability, Quantum mechanics, Quantum electrodynamics, 0103 physical sciences, Bound state, Condensed Matter - Quantum Gases, 010306 general physics, Mathematical Physics, Phase diagram, Fermi Gamma-ray Space Telescope, Boson
Abstract: We study three dimensional Bose and Fermi gases in the upper branch, a phase defined by the absence of bound states in the repulsive interaction regime, within an approximation that considers only two-body interactions. Employing a formalism based on the S-matrix, we derive useful analytic expressions that hold on the upper branch in the weak coupling limit. We determine upper branch phase diagrams for both bosons and fermions with techniques valid for arbitrary positive scattering length., Comment: 5 pages, 4 figures. v3: published version
Published: 2016
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17. Measurement of the partial width of the decay of the Z0 into charm quark pairs

Author: U. Kruener-Marquis, M. L. Turluer, D. Reid, D. Bertrand, P. Siegrist, P. Vaz, I. Lippi, J-C. Marin, P. Lutz, E. K. Johansson, D. Bollini, P. B. Renton, W. S. C. Williams, Spyros Tzamarias, P. Poropat, Andromachi Tsirou, P. V. Chliapnikov, Andre Augustinus, A. Wehr, Edoardo Castelli, D. Radojicic, E. Menichetti, E. Fokitis, Paula Eerola, D.N. Edwards, S. Biagi, Tiziano Rovelli, M. Cresti, S. Gawne, Wolfgang Adam, M. Davenport, J. Pyyhtia, R. Keranen, L. Paper, E. I. Rosenberg, P. Frenkiel, A. Passeri, V.A. Uvarov, A. M. Segar, V. Nikolaenko, G. Trustram, Tord Ekelof, H. Staeck, P. Kapusta, G. E. Kalmus, M. Kostrikov, F. Grard, V. Vrba, S. Squarcia, F. Cao, E. N. Gazis, B. Korzen, R.B. Kadyrov, Bengt Lund-Jensen, G. Ekspong, Giovanni Darbo, F. Couchot, A. A. Rademakers, W. T. Meyer, Anthony Lincoln Read, A. P. Ostankov, J. Bjarne, H. Palka, Itzhak Roditi, Natale Demaria, Gueorgui Chelkov, A. Ruiz, G. R. Wilkinson, C. Vander Velde, Wojciech Kucewicz, L. Tortora, T. Tuuva, J. N. Jackson, S. O. Holmgren, M. Szczekowski, G. Galeazzi, A. Ferrer, L. S. Vertogradov, Borge Svane Nielsen, H. Burmeister, F. Barao, Roberto Cirio, L. K. Resvanis, F. Simonetto, E. Lieb, J. J. Lozano, M. H. Gros, U. Nnau-Lorzen, M. S. Bilenky, S. Ferroni, P. Bambade, K. Kurvinen, P.S.L. Booth, J. Lindgren, L.J. Carroll, W. Klempt, L. Lyons, O. Doll, Krzysztof Doroba, George Kalkanis, Chiara Meroni, Robert S. Brown, Tiziano Camporesi, Klaus Hamacher, M. Bonapart, Massimo Caccia, J. G. Loken, S. D. Hodgson, C. Bricman, A. Pullia, M. I. Laakso, L. O. Eek, R. C. Shellard, Josef Hrubec, M. A. Winter, S. Simonetti, J. Maillard, T. A. Filippas, T. Hofmokl, S. Gumenyuk, R. A. Brenner, Ariella Cattai, P. Ronschese, D. Benedic, E. Higon, R. Seufert, F. Scuri, J. Sanxhez, A. M. Wetherell, Th. D. Papadopoulou, J. H. Bibby, Pierre Billoir, G. Cosme, A. Baroncelli, Marco Bozzo, M. J. Bates, B. De Lotto, Guenakh Mitselmakher, G. Crosetti, S. J. Alvsvaag, Leif J. Jönsson, Ugo Gasparini, D. C. Fries, P. Weilhammer, I. Belokopytov, D. Husson, I. A. Tyapkin, T. S. Spassoff, A. Campion, M. Pegoraro, M. Pernicka, G. Lenzen, R. Strub, J. E. Campagne, M. Koratzinos, L. Lanceri, Paul Baillon, E. C. Katsoufis, G. Myatt, E. Graziani, Mikko Voutilainen, P. S. Iversen, F. Fontanelli, H. Furstenau, E. Sanchis, A. Lopez-Fernandez, Marta Calvi, L. Di Ciaccio, C. Defoix, P. Szymanski, A. Firestone, N. Redaelli, J. Marco, S. Ueberschaer, F. Waldner, H. Wahlen, Ariel Goobar, Ugo Amaldi, H. Forsbach, J. W. Lamsa, Guido Barbiellini, H. Herr, L. G. Tkatchev, Jose M. Benlloch, A. Grant, Mogens Dam, C. Lambropoulos, Patrick Jarry, G. Rinaudo, Clara Troncon, J. Guy, W. De Boer, Geoffrey Smith, E.N. Tsyganov, J. H. Wickens, W. Dulinski, Jose Luis Contreras, A. Fenyuk, J. H. Koehne, M. Pimenta, K. Woschnagg, B. A. Khomenko, A. De Min, A. Stocchi, Joao Varela, Hans Dijkstra, A. Markou, T. Buran, N. De Groot, P. Beltran, M. Vollmer, P. Delpierre, Tim Adye, W. D. Apel, B. Franek, P. Kluit, M. Mazzucato, U. Rossi, C. Walck, Paolo Giacomelli, J. E. Hooper, Francesco Navarria, L. Vibert, K. H. Becks, G. W. Van Apeldoorn, M. P. Clara, G. D. Alekseev, P. Negri, J. M. Brunet, M. Jonker, Pierre Astier, J. Zúñiga, M. Boratay, P. Abreu, P. Borgeaud, R. Sekulin, A. Zalewska, M. Baubillier, K. D. Brand, E. Vallazza, L. Ventura, G. Hamel de Monchenault, H. Schneider, Göran Jarlskog, Jan Ridky, L. Mathis, T. Moa, M.A. Lopez Aguera, M. Mc Cubbin, K. Hultqvist, H. Borner, C. Pinori, B.D. Hyams, Mikael Berggren, S. Ragazzi, A. Sebastia, Francesca Romana Cavallo, Josef Strauss, E. Lillethum, A. Letessier-Selvon, Mitchell Wayne, P. Zalewski, V. Lepeltier, G. Kantarjian, B. Grossetete, Allan Hallgren, Vegni, Giovanni Valenti, F. Udo, W. Venus, G. Maehlum, I. Herbst, V. Ruhlmann, Paolo Checchia, Jacques Lemonne, J. Velasco, E. Rosso, H. Klein, Ph. Gavillet, V. V. Lapin, Hans Muller, Fares Djama, V. Canale, N. K. Visnevskiy, C. De Clercq, F. Kapusta, L. Bugge, J. Drees, P. D. Dauncey, N. J. Kjaer, A. J. Camacho Rozas, G. Sette, M. Sessa, Maria Elena Pol, G. Leder, Alexander Vodopyanov, B. Åsman, G. Zumerle, L. Cerrito, F. Bianchi, P. N. Bogolubov, F. Ledroit, Kjell Fransson, S. Katsanevas, P. Privitera, D. Z. Toet, T. Kreuzberger, D. Vilanova, Christine Kourkoumelis, E. Dahl-Jensen, M. Schaeffer, D. Y. Bardin, P. Beilliere, D. Crennell, W. Van Doninck, P. N. Ratoff, Andrea Perrotta, F. Alted, J. Dolbeau, F. Mandl, G. Smadja, A. Klovning, Daniel Treille, Paul Allen, R. Lucock, R. Sosnowski, Olga Botner, Krzysztof Korcyl, A. Tilquin, Jorge-Armando Benitez Garcia, U. Mjoernmark, R. Gokieli, B. W. Heck, P.I. Zarubin, J. J. Hernandez, J. Cuevas Maestro, P. O. Hulth, P. Yepes, M. Regler, C. J. Beeston, J. Krolikowski, N. Magnussen, P. Herquet, H. De Boeck, V. Falaleev, E. Daubie, P. Laurikainen, M. De Beer, M. R. Monge, B. Jean-Marie, S. Braibant, S. Tavernier, M. Tyndel, M. Bonesini, J. A. M. A. Buytaert, Y. Gouz, N. Crosland, G. Gopal, Y. Sacquin, Andrey Korytov, R. Llosa, H. Mueller, J.M. Gago, H. Foeth, D. Wormald, R. Contri, M. Fernandez Alonso, T. Bolognese, E. J. Sanchez, R. Orava, U. Trevisan, R. Zukanovich Funchal, M. Szeptycka, W. Bartl, J. Wikne, N. Smirnov, V. Perevozchikov, J. A. Valls Ferrer, M. Turala, Manolis Dris, J. P. Gerber, Mario Sannino, K. W. Glitza, P. Roudeau, G. Skjevling, J. P. Laugier, F. Stichelbaut, A. De Angelis, D. Delikaris, R. Dzhelyadin, D. Gamba, C. Stanescu, R. Lauhakangas, N. van Eijndhoven, E. Zevgolatakos, G. Voulgaris, F. Verbeure, Daniel Bloch, Ahmimed Ouraou, V.M. Golovatyuk, Marcos Dracos, B. Bouquet, Juan Fuster, M. Kopf, B. Dalmagne, Laurent Chevalier, R. Zitoun, F. Fulda-Quenzer, P. Kokkinias, Milos Lokajicek, J. Kesteman, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, G. Damgaard, O. Pingot, V. Gracco, H. Saarikko, Pavlos Ioannou, A.K. Topphol, Klaus Moenig, M. A. Houlden, G. Matthiae, W. A. Mitaroff, F. Richard, M. Hahn, F. Naraghi, V. G. Timofeev, S. Almehed, K. Spang, F. Hahn, C. Matteuzzi, E. Lillestol, G. Grosdidier, Alessandra Romero, I.A. Gritsaenko, J. E. Augustin, A. Zaitsev, S. Haider, A. N. Sissakian, Claudia J. Stubenrauch, Eleuterio Spiriti, C. Caso, H. B. Crawley, P. Morettini, Pierre Juillot, B. Koene, A.N. Diddens, D. Loukas, M. Crozon, R. Pain, V. Obraztsov, O. Barring, S. Dagoret, P. Van Dam, Renato Turchetta, C. De La Vaissiere, G. Zhang, Pawel Jalocha, Barry King, R. Frühwirth, J. Timmermans, P. Branchini, G. E. Theodosiou, M.D.M. De Fez Laso, R. Moeller, A. Pinsent, N. Yamdagni, M. T. Trainor, Sandor Czellar, N. Brummer, G. Wormser, Pieter David, W. H. Range, W. Krupinski, S. Maltezos, H. J. Hilke, J. Skeens, G. Stavropoulos, V. Chorowicz, R. Mc Kay, N. I. Zimim, F. Adami, Jürgen H. Werner, Philippe Charpentier, Francisco Matorras, T. B. Skaali, F. J. Harris, A. G. Frodesen, Z. Hajduk, Maciej Górski, A. Hakansson, C. Bosio, E. Vlasov, R. Holmes, Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, Meson, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, 01 natural sciences, JET FRAGMENTATION, Charm quark, Standard Model, law.invention, Nuclear physics, PHYSICS, ENERGY, Pion, D-STAR-MESON, CROSS-SECTION, law, 0103 physical sciences, 010306 general physics, Collider, Nuclear Experiment, Boson, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Physique des particules élémentaires, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A determination of the partial width Γc̄ of the Z0 boson into charm quark pairs is presented, based on a total sample of 36 900 Z0 hadronic decays measured with the DELPHI detector at the LEP collider. The production rate of cc events is derived from the inclusive analysis of charged pions coming from the decay of charmed meson D*+-→D0π+ and D*-→D̄0π- where the π± is constrained by kinematics to have a low pT with respect to the jet axis. The probability to procedure these π± from D*± decay in cc events is taken to be 0.31±0.05 as measured at √S = 10.55 GeV. The measured relative partial width Γ∞/Γh = 0.162± 0.030(stat.) ± 0.050(syst.) is in good agreement with the standard model value of 0.171. Together with our previous measurement of the total hadronic width Γh this implies Γ∞ = 282 ± 53 (stat.) ± 88 (syst.) MeV., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2016
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18. BOSE-EINSTEIN CORRELATIONS IN THE HADRONIC DECAYS OF THE Z(0)

Author: Jorge-Armando Benitez Garcia, D. J. Holthuizen, T. J. V. Bowcock, K. Furnival, F. Simonetto, B. A. Della Riccia, G. D. Alekseev, E. Torassa, Wolfgang Adam, G. Leder, B. Åsman, Itzhak Roditi, C. Gaspar, M. Mc Cubbin, K. Hultqvist, Maria Elena Pol, S. Katsanevas, Juan Fuster, M. T. Trainor, Yu. Belokopytov, D. Crennell, F. Mandl, G. Smadja, R. Contri, M. Karlsson, M. Jonker, S. Schael, S. Ueberschaer, T. A. Filippas, R. Lauhakangas, Ph. Charpentier, C. Kourkoumelis, D. Vilanova, M. Pimenta, B. A. Khomenko, M. Regler, Klaus Hamacher, H. Herr, N. De Groot, A. Stocchi, Francesco Navarria, J. Zúñiga, Jelena Krstic, Ugo Gasparini, B. Franek, R. Ehret, F. Couchot, I. Lippi, P. Siegrist, E.N. Tsyganov, J. H. Wickens, B. Muryn, Marco Paganoni, Jose Luis Contreras, W. De Boer, C. Vander Velde, L. Vitale, M. Donszelmann, D. Radojicic, S. J. Alvsvaag, E. Agasi, L. Mathis, M. Los, V. Lepeltier, P. Lutz, T. Maron, Tim Adye, Francesca Romana Cavallo, J. P. Engel, K. A. J. Forbes, J. Bjarne, G. Ekspon, Mitchell Wayne, M. V. Castillo Gimenez, S. D. Hodgson, R. Gokieli, M. S. Bilenky, Andre Tilquin, L.J. Carroll, M. Turala, Spyros Tzamarias, O. Tchikilev, A. G. Olshevski, Paolo Checchia, G. Vegni, Ph. Gavillet, B. Dalmagne, Laurent Chevalier, L. Chaussard, A. Chan, C. Lambropoulos, Ugo Amaldi, E. Zevgolatakos, P. Antilogus, P. E. S. Nilsen, J. T.M. Chrin, E. Anassontzis, G. Damgaard, P. Borgeaud, U. Kruener-Marquis, V. V. Lapin, M. Michelotto, Tord Ekelof, H. Staeck, Mogens Dam, Giovanni Crosetti, Fabrizio Scuri, W.S.C. Williams, P. Abreu, T. Buran, M. Tyndel, O. Pingot, F. Hahn, Rupert Leitner, Th. D. Papadopoulou, Guenakh Mitselmakher, V. Ruhlmann, V. Gracco, G. Matthiae, S. Rossi, C. De Clercq, F. Cao, Maria Roberta Monge, Dietrich Liko, A. Zalewska, Claire Bourdarios, Paolo Ronchese, W. J. Murray, M. Battaglia, W. Van Doninck, Lucio Cerrito, F. Ledroit, G. Stavropoulos, V. Chorowicz, G. Rinaudo, G. Galeazzi, P. Privitera, B. Loerstad, A. De Angelis, G. Lenzen, Milos Lokajicek, Jacques Lemonne, R. Strub, Juan Abel Barrio, Borge Svane Nielsen, V. Bocci, A. Tomaradze, J. Kesteman, N. J. Kjaer, J. J. Lozano, R. Lindner, Martino Margoni, E. Fokitis, H. Mueller, Marco Sessa, A. De Min, Joao Varela, I. Siccama, Piotr Zalewski, G. Sajot, S. Marti, P. Yepes, F. Stichelbaut, Cristian Stanescu, P. Branchini, Krzysztof Doroba, H. Schneider, R. Mc Kay, A. Andreazza, R. Zuberi, Alastair Grant, S. O. Holmgren, L. S. Vertogradov, J. P. Gerber, C. O. Higgins, H. Burmeister, M. Bozzo, J. J. Gomez Y Cadenas, Andrea Perrotta, G. Sette, A. Elliot Peisert, Jan Buytaert, D. Benedic, Peter Kluit, Maciej Górski, I. A. Tyapkin, O. Kouznetsov, D. Isenhower, V.A. Uvarov, Klaus Moenig, M. A. Houlden, Olga Botner, Krzysztof Korcyl, L. Tortora, T. S. Spassoff, R. A. Brenner, G. Myatt, L. Bugge, G. Tristram, Paula Eerola, Daniel Treille, W. Da Silva, W. A. Mitaroff, A.N. Sisakian, Carmen García, Robert S. Brown, A. J. Camacho Rozas, B. Nijjhar, D. Z. Toet, A. Klovning, D. Y. Bardin, Mario Sannino, G. Hamel de Monchenault, G. E. Kalmus, J. N. Jackson, M. A. Lopez Aguera, B. Bouquet, R. Mc Nulty, K. Woschnagg, P. Herquet, A. Firestone, H. De Boeck, R. Keranen, B. Jean-Marie, F. J. Harris, Josef Strauss, S. Braibant, V. Chabaud, W. Venus, A. Maltezos, P. Niss, S. Squarcia, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, P. Kokkinias, R. Orava, Fernand Grard, M. L. Turluer, Gabriella Sciolla, D. Reid, Gianni Zumerle, R. Holmes, H. Saarikko, T. Tabarelli, H. Foeth, E. Lieb, R. J. Apsimon, J. E. Hooper, Carlos Lacasta, T. L. Hessing, A. M. Segar, J. Ridky, D. Zavrtanik, Krzysztof A. Rybicki, D. Wormald, Francisco Matorras, Manolis Dris, P. Roudeau, N. Yamdagni, F. Richard, M. Hahn, S. Almehed, M. Pegoraro, Javier Sánchez, J. Maillard, I. Kronkvist, M. Mazzucato, Paul Allen, P. S. Iversen, C. Matteuzzi, P. H. Kramer, M. Vollmer, U. Rossi, Paolo Giacomelli, G. Wormser, S. Delorme, Ariella Cattai, M. Zito, F. Fontanelli, M. Voutilainen, S. Volponi, Pierre Billoir, Nikita Smirnov, Chiara Meroni, F. Carena, M. Szczekowski, P. Vaz, P. Poropat, A. Pullia, Andromachi Tsirou, E. Lillethun, M. Crozon, J. Lindgren, W. T. Meyer, M. Fernandez Alonso, S. Vlassopoulos, U. Mjoernmark, R. Moeller, Andrey Korytov, P. Grosse-Wiesmann, P. Collins, Leif J. Jönsson, B. Boštjančič, V. Perevozchikov, B. Grossetete, Allan Hallgren, V. Obraztsov, Andre Augustinus, A. Wehr, M. Richardson, A. Ruiz, H. Furstenau, C.J. Beeston, Antonio Baroncelli, Roberto Cirio, L. K. Resvanis, M. De Beer, D. Delikaris, Tiziano Camporesi, W. Klempt, J. Dolbeau, M. A E Schyns, P. Bambade, U. Haedinger, R. Zukanovich Funchal, T. Todorov, I. Roncagliolo, H. Palka, G. Skjevling, G. Cosme, G. Barbiellini, J. E. Augustin, M. Chapkin, T. Pettersen, Eugene P. Gross, T. Hofmokl, J. Werner, U. Trevisan, Vaclav Vrba, Natale Demaria, P. F. Honore, Patrick Jarry, P.S.L. Booth, O. Toker, F. Barao, M. Pernicka, M. Bonesini, N. G. Redaelli, Massimo Caccia, I. Hietanen, E. Dahl-Jensen, Vladimir Nikolaenko, G. Borisov, T. A. Fearnley, C. Troncon, Charles Bricman, W. D. Apel, Hans Dijkstra, E. Rosso, H. Klein, J. C. Marin, Daniel Bloch, J. Salt, Jan Krolikowski, N. N. Khovanski, E. Higon, R. Seufert, W. Bartl, Y. Sacquin, Jesus Marco, P. Juillot, A. Lopez-Fernandez, K. Osterberg, Ahmimed Ouraou, V.M. Golovatyuk, H. Wahlen, Ariel Goobar, S. Bosworth, V. Kostioukhine, M. Baubillier, P. Frenkiel, P. Ioannou, J. Straver, Eleuterio Spiriti, J. A. Valls Ferrer, M. J. Bates, J. H. Koehne, H. Briand, A. M. Wetherell, F. Waldner, K. Kulka, Toralf Bernhard Skaali, C. Caso, L. Lanceri, Tuure Tuuva, A. M. Zaitsev, Alexander Vodopyanov, J. P. Laugier, D. Gamba, J. J. Hernandez, G. Voulgaris, P. O. Hulth, F. Bianchi, C. Walck, J. M. Levy, M. Feindt, P. Negri, F. Verbeure, F. Kapusta, H. P. Borner, E. I. Rosenberg, M. P. Clara, K. H. Becks, Stefaan Tavernier, R. Barate, P. Delpierre, E. Daubie, E. Vallazza, Göran Jarlskog, R. Sosnowski, F. Naraghi, V. G. Timofeev, A. Letessier-Selvon, A. Daum, E. Karvelas, H. B. Crawley, G. P. Gopal, A. G. Frodesen, K. D. Brand, J. Pennanen, J. Cuevas Maestro, N. I. Zimin, S. Ragazzi, M. Kopf, E. K. Johansson, C. Bosio, D. Bertrand, Steinar Stapnes, G. W. Van Apeldoorn, P. Weilhammer, J. W. Lamsa, J. Chauveau, W. Bonivento, E. Cortina, W. Ruckstuhl, R. Zitoun, Jon Christopher Wikne, C. Defoix, F. Fulda-Quenzer, K. Kurvinen, E. Castelli, L. Ventura, P. Beltran, G. Grosdidier, Ivan Mikulec, E. Graziani, William Trischuk, Y. Lemoigne, J. Drees, J. M. Brunet, P. D. Dauncey, A. Passeri, M. Weierstall, P. N. Bogolubov, Evangelos Gazis, G. Meola, A. Markou, George Kalkanis, P. B. Renton, Louis Lyons, D. C. Fries, E. C. Katsoufis, Pieter David, Marta Calvi, Vincenzo Canale, Geoffrey Smith, N. Brumner, R. Sekulin, W. Krupinski, G. A. Chelkov, M. Dracos, Demetrios Loukas, G. Valenti, T. Moa, G. Maehlum, D. Fassouliotis, A. Romero, F. Pierre, S. Haider, Fares Djama, A. Ferrer, O. Ullaland, Giovanni Darbo, P. N. Ratoff, D. R. Johnson, P. Szymanski, S. Simonetti, H. J. Hilke, M. Begalli, M. A. Winter, T. Bolognese, A. Petrolini, Y. Dufour, T. Henkes, B. De Lotto, Sandor Czellar, Evgueni Vlasov, G. Polok, G. E. Theodosiou, L. G. Tkatchev, G. Wilkinson, M.D.M. De Fez Laso, M. Berggren, Tiziano Rovelli, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, C. Ronnqvist, A. P. Ostankov, Julien Guy, Luc Pape, Anna Lipniacka, S. Dagoret, P. Van Dam, C. De La Vaissiere, G. Zhang, Pawel Jalocha, Barry King, R. Frühwirth, J. Timmermans, S. L. Blyth, P. Morettini, B. Koene, J. G. Loken, P. Beilliere, R. Pain, W. Hao, O. Barring, Z. Hajduk, M. Davenport, A. Hakansson, P. V. Chliapnikov, Abreu, P, Adam, W, Adye, T, Agasi, E, Alekseev, G, Allen, P, Almehed, S, Alvsvaag, S, Amaldi, U, Anassontzis, E, Andreazza, A, Antilogus, P, Apel, W, Apsimon, R, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barate, R, Barbiellini, G, Bardin, D, Baroncelli, A, Barring, O, Barrio, J, Bartl, W, Bates, M, Battaglia, M, Baubillier, M, Becks, K, Beeston, C, Begalli, M, Beilliere, P, Belokopytov, Y, Beltran, P, Benedic, D, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P, Borgeaud, P, Borisov, G, Borner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T, Bozzo, M, Braibant, S, Branchini, P, Brand, K, Brenner, R, Briand, H, Bricman, C, Brown, R, Brumner, N, Brunet, J, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho Rozas, A, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Caso, C, Castelli, E, Castillo Gimenez, M, Cattai, A, Cavallo, F, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G, Chevalier, L, Chliapnikov, P, Chorowicz, V, Chrin, J, Cirio, R, Clara, M, Collins, P, Contreras, J, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H, Crennell, D, Crosetti, G, Crozon, M, Maestro, J, Czellar, S, Dagoret, S, Dahl-Jensen, E, Dalmagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, E, Daum, A, Dauncey, P, Davenport, M, David, P, Da Silva, W, Defoix, C, Delikaris, D, Della Riccia, B, Delorme, S, Delpierre, P, Demaria, N, De Angelis, A, De Beer, M, De Boeck, H, De Boer, W, De Clercq, C, De Fez Laso, M, De Groot, N, De La Vaissiere, C, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, L, Djama, F, Dolbeau, J, Donszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Eek, L, Eerola, P, Ehret, R, Ekelof, T, Ekspon, G, Peisert, A, Engel, J, Fassouliotis, D, Fearnley, T, Feindt, M, Alonso, M, Ferrer, A, Filippas, T, Firestone, A, Foeth, H, Fokitis, E, Fontanelli, F, Forbes, K, Franek, B, Frenkiel, P, Fries, D, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Furnival, K, Furstenau, H, Fuster, J, Galeazzi, G, Gamba, D, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E, Gerber, J, Giacomelli, P, Gokieli, R, Golovatyuk, V, Gomez Y Cadenas, J, Goobar, A, Gopal, G, Gorski, M, Gracco, V, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grosse-Wiesmann, P, Grossetete, B, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, De Monchenault, G, Hao, W, Harris, F, Henkes, T, Hernandez, J, Herquet, P, Herr, H, Hessing, T, Hietanen, I, Higgins, C, Higon, E, Hilke, H, Hodgson, S, Hofmokl, T, Holmes, R, Holmgren, S, Holthuizen, D, Honore, P, Hooper, J, Houlden, M, Hrubec, J, Hulth, P, Hultqvist, K, Ioannou, P, Isenhower, D, Iversen, P, Jackson, J, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Johnson, D, Jonker, M, Jonsson, L, Juillot, P, Kalkanis, G, Kalmus, G, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E, Keranen, R, Kesteman, J, Khomenko, B, Khovanski, N, King, B, Kjaer, N, Klein, H, Klempt, W, Klovning, A, Kluit, P, Koehne, J, Koene, B, Kokkinias, P, Kopf, M, Korcyl, K, Korytov, A, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Kramer, P, Krolikowski, J, Kronkvist, I, Krstic, J, Kruener-Marquis, U, Krupinski, W, Kulka, K, Kurvinen, K, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, G, Lepeltier, V, Letessier-Selvon, A, Levy, J, Lieb, E, Liko, D, Lillethun, E, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Loerstad, B, Lokajicek, M, Loken, J, Lopez-Fernandez, A, Lopez Aguera, M, Los, M, Loukas, D, Lozano, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J, Markou, A, Maron, T, Marti, S, Mathis, L, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Meola, G, Meroni, C, Meyer, W, Michelotto, M, Mikulec, I, Mitaroff, W, Mitselmakher, G, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Morettini, P, Mueller, H, Murray, W, Muryn, B, Myatt, G, Naraghi, F, Navarria, F, Negri, P, Nielsen, B, Nijjhar, B, Nikolaenko, V, Nilsen, P, Niss, P, Obraztsov, V, Olshevski, A, Orava, R, Ostankov, A, Osterberg, K, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T, Pape, L, Passeri, A, Pegoraro, M, Pennanen, J, Perevozchikov, V, Pernicka, M, Perrotta, A, Petrolini, A, Pettersen, T, Pierre, F, Pimenta, M, Pingot, O, Pol, M, Polok, G, Poropat, P, Privitera, P, Pullia, A, Radojicic, D, Ragazzi, S, Ratoff, P, Read, A, Redaelli, N, Regler, M, Reid, D, Renton, P, Resvanis, L, Richard, F, Richardson, M, Ridky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Ronnqvist, C, Rosenberg, E, Rossi, S, Rossi, U, Rosso, E, Roudeau, P, Rovelli, T, Ruckstuhl, W, Ruhlmann, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M, Sciolla, G, Scuri, F, Segar, A, Sekulin, R, Sessa, M, Sette, G, Seufert, R, Shellard, R, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sisakian, A, Skaali, T, Skjevling, G, Smadja, G, Smirnov, N, Smith, G, Sosnowski, R, Spassoff, T, Spiriti, E, Squarcia, S, Staeck, H, Stanescu, C, Stapnes, S, Stavropoulos, G, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli, T, Tavernier, S, Tchikilev, O, Theodosiou, G, Tilquin, A, Timmermans, J, Timofeev, V, Tkatchev, L, Todorov, T, Toet, D, Toker, O, Tomaradze, A, Torassa, E, Tortora, L, Trainor, M, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A, Tsyganov, E, Turala, M, Turluer, M, Tuuva, T, Tyapkin, I, Tyndel, M, Tzamarias, S, Ueberschaer, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J, Velde, C, Van Apeldoorn, G, Van Dam, P, Van Doninck, W, Varela, J, Vaz, P, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Vertogradov, L, Vilanova, D, Vitale, L, Vlasov, E, Vlassopoulos, S, Vodopyanov, A, Vollmer, M, Volponi, S, Voulgaris, G, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Wehr, A, Weierstall, M, Weilhammer, P, Werner, J, Wetherell, A, Wickens, J, Wikne, J, Wilkinson, G, Williams, W, Winter, M, Wormald, D, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N, Zito, M, Zitoun, R, Zuberi, R, Funchal, R, Zumerle, G, Zuniga, J, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: COLLISIONS, Particle physics, Nuclear and High Energy Physics, E+E ANNIHILATION, LUND MONTE-CARLO, 34-GEV, Electron–positron annihilation, Hadron, 01 natural sciences, JET FRAGMENTATION, PHYSICS, Nuclear physics, Pion, PION INTERFEROMETRY, MASS-ENERGY, COHERENCE, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, 010308 nuclear & particles physics, Detector, Bose–Einstein correlations, Charged particle, Reference sample, Physique des particules élémentaires, High Energy Physics::Experiment, Particle Physics - Experiment, Coherence (physics)
Abstract: Bose-Einstein correlation between pairs of like-sign charged particles produced in e+e- annihilations near the Z0 peak have been studied using data taken with the DELPHI detector at LEP. An enhancement is found in the production of pairs of identical pions of similar moments, with respect to a reference sample. Under the hypothesis that the pions are emitted by a spherically symmetrical source with gaussian density, the data indicate a radius of the source of r = 0.62±0.04(stat.)±0.20(syst.) fm. The large systematic uncertainty reflects the sensitivity of r to the choice of the reference sample, 0, info:eu-repo/semantics/published
Published: 2016
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19. Composite-boson approach to molecular Bose-Einstein condensates in mixtures of ultracold Fermi gases

Author: Itzhak Roditi, Malte C. Tichy, and P. Alexander Bouvrie
Subjects: Physics, Condensed Matter::Quantum Gases, Quantum Physics, Unitarity, Condensed Matter::Other, Strong interaction, FOS: Physical sciences, Fermion, Quantum entanglement, 01 natural sciences, 010305 fluids & plasmas, law.invention, MANY-BODY PHYSICS, law, Quantum Gases (cond-mat.quant-gas), Quantum electrodynamics, Quantum mechanics, 0103 physical sciences, Diffusion Monte Carlo, 010306 general physics, Condensed Matter - Quantum Gases, Quantum Physics (quant-ph), Bose–Einstein condensate, Ansatz, Boson
Abstract: We show that an ansatz based on independent composite bosons [Phys. Rep. 463, 215 (2008)] accurately describes the condensate fraction of molecular Bose-Einstein condensates in ultracold Fermi gases. The entanglement between the fermionic constituents of a single Feshbach molecule then governs the many-particle statistics of the condensate, from the limit of strong interaction to close to unitarity. This result strengthens the role of entanglement as the indispensable driver of composite-boson behavior. The condensate fraction of fermion pairs at zero temperature that we compute matches excellently previous results obtained by means of fixed-node diffusion Monte Carlo methods and the Bogoliubov depletion approximation. This paves the way towards the exploration of the BEC-BCS crossover physics in mixtures of cold Fermi gases with an arbitrary number of fermion pairs as well as the implementation of Hong-Ou-Mandel-like interference experiments proposed within coboson theory., Comment: 9 pages, 5 figures
Published: 2016
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20. A combinatorial matrix approach for the generation of vacuum Feynman graphs multiplicities in $\phi^{4}$ theory

Author: Itzhak Roditi and Erick Castro
Subjects: High Energy Physics - Theory, Statistics and Probability, Discrete mathematics, Relation (database), 010308 nuclear & particles physics, 010102 general mathematics, General Physics and Astronomy, Statistical and Nonlinear Physics, Permutation group, 01 natural sciences, Standard procedure, Set (abstract data type), symbols.namesake, Matrix (mathematics), Modeling and Simulation, ComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATION, 0103 physical sciences, symbols, Feynman diagram, 0101 mathematics, Mathematical Physics, MathematicsofComputing_DISCRETEMATHEMATICS, Mathematics
Abstract: From the standard procedure for constructing Feynman vacuum graphs in $\phi^4$ theory from the generating functional $Z$, we find a relation with sets of certain combinatorial matrices, which allows us to generate the set of all Feynman graphs and the respective multiplicities in an equivalent combinatoric way. These combinatorial matrices are explicitly related with the permutation group, which facilitates the construction of the vacuum Feynman graphs. Various insights in this combinatoric problem are proposed, which in principle provide an efficient way to compute the Feynman vacuum graphs and its multiplicities., Comment: 27 pages
Published: 2018
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21. Variational approach to thermal masses in compactified models

Author: Itzhak Roditi and Daniele Dominici
Subjects: Physics, High Energy Physics - Phenomenology, Phase transition, Particle physics, Nuclear and High Energy Physics, High Energy Physics - Phenomenology (hep-ph), Dimensional reduction, Scalar (mathematics), Thermal, FOS: Physical sciences, Scalar field, Mathematical physics
Abstract: We investigate by means of a variational approach the effective potential of a 5 D U(1) scalar model at finite temperature and compactified on S 1 and S 1 / Z 2 as well as the corresponding 4 D model obtained through a trivial dimensional reduction. We are particularly interested in the behavior of the thermal masses of the scalar field with respect to the Wilson line phase and the results obtained are compared with those coming from a one-loop effective potential calculation. We also explore the nature of the phase transition.
Published: 2015
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22. Exact solution and magnetic properties of an anisotropic spin ladder

Author: Zu-Jian Ying, Bin Chen, Itzhak Roditi, and Angela Foerster
Subjects: Quantum phase transition, Physics, Phase transition, Statistical Mechanics (cond-mat.stat-mech), Strongly Correlated Electrons (cond-mat.str-el), Condensed matter physics, FOS: Physical sciences, Condensed Matter Physics, Magnetic susceptibility, Mathematics::Numerical Analysis, Electronic, Optical and Magnetic Materials, Bethe ansatz, Magnetic field, Condensed Matter - Strongly Correlated Electrons, Magnetization, Condensed Matter::Strongly Correlated Electrons, Ground state, Condensed Matter - Statistical Mechanics, Spin-½
Abstract: We study an integrable two-leg spin-1/2 ladder with an XYZ-type rung interaction. Exact rung states and rung energies are obtained for the anisotropic rung coupling in the presence of a magnetic field. Magnetic properties are analyzed at both zero and finite temperatures via the thermodynamic Bethe ansatz and the high-temperature expansion. According to different couplings in the anisotropic rung interaction, there are two cases in which a gap opens, with the ground state involving one or two components in the absence of a magnetic field. We obtain the analytic expressions of all critical fields for the field-induced quantum phase transitions (QPT). Anisotropic rung interaction leads to such effects as separated magnetizations and susceptibilities in different directions, lowered inflection points and remnant weak variation of the magnetization after the last QPT., 9 pages, 8 figures; a typo in C_2(below eq.7) corrected
Published: 2004
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23. Magnetization plateau and quantum phase transitions in a spin-orbital model

Author: Itzhak Roditi, Xi-Wen Guan, Angela Foerster, Zu-Jian Ying, and Bin Chen
Subjects: Quantum phase transition, Physics, Strongly Correlated Electrons (cond-mat.str-el), Condensed matter physics, FOS: Physical sciences, Context (language use), Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Bethe ansatz, Magnetic field, Condensed Matter - Strongly Correlated Electrons, Magnetization, Anisotropy, Spin (physics), Phase diagram
Abstract: A spin-orbital chain with different Land\'e $g$ factors and one-ion anisotropy is studied in the context of the thermodynamical Bethe ansatz. It is found that there exists a magnetization plateau resulting from the different Land\'e $g$ factors. Detailed phase diagram in the presence of an external magnetic field is presented both numerically and analytically. For some values of the anisotropy, the four-component system undergoes five consecutive quantum phase transitions when the magnetic field varies. We also study the magnetization in various cases, especially its behaviors in the vicinity of the critical points. For the SU(4) spin-orbital model, explicit analytical expressions for the critical fields are derived, with excellent accuracy compared with numerics., Comment: 5 pages, 3 figures
Published: 2004
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24. Virial coefficients for trapped Bose and Fermi gases beyond the unitary limit: AnS-matrix approach

Author: André Nicolai, André LeClair, Edgar Marcelino, and Itzhak Roditi
Subjects: Condensed Matter::Quantum Gases, Physics, Virial coefficient, Quantum electrodynamics, Quantum mechanics, Isotropy, Virial expansion, Scattering length, Limit (mathematics), Local-density approximation, Atomic and Molecular Physics, and Optics, Quantum chaos, S-matrix
Abstract: We study the virial expansion for three-dimensional Bose and Fermi gases at finite temperature using an approximation that only considers two-body processes and is valid for high temperatures and low densities. The first virial coefficients are computed and the second is exact. The results are obtained for the full range of values of the scattering length and the unitary limit is recovered as a particular case. A weak coupling expansion is performed and the free case is also obtained as a proper limit. The influence of an anisotropic harmonic trap is considered using the Local Density Approximation - LDA, analytical results are obtained and the special case of the isotropic trap is discussed in detail.
Published: 2014
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25. BETHE ANSATZ SOLUTION OF THE ANISOTROPIC CORRELATED ELECTRON MODEL ASSOCIATED WITH THE TEMPERLEY–LIEB ALGEBRA

Author: Itzhak Roditi, A. Lima-Santos, and Angela Foerster
Subjects: Free electron model, Physics, Nuclear and High Energy Physics, Nonlinear Sciences - Exactly Solvable and Integrable Systems, FOS: Physical sciences, Astronomy and Astrophysics, Temperley–Lieb algebra, Electron system, Atomic and Molecular Physics, and Optics, Bethe ansatz, Nonlinear Sciences::Exactly Solvable and Integrable Systems, Boundary value problem, Exactly Solvable and Integrable Systems (nlin.SI), Algebra over a field, Anisotropy, Mathematical physics
Abstract: A recently proposed strongly correlated electron system associated with the Temperley-Lieb algebra is solved by means of the coordinate Bethe ansatz for periodic and closed boundary conditions., Comment: 21 pages
Published: 1998
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26. A family of nonextensive entropies

Author: Ernesto P. Borges and Itzhak Roditi
Subjects: Physics, Tsallis entropy, Condensed Matter::Statistical Mechanics, General Physics and Astronomy, Statistical physics
Abstract: A generalized nonextensive two-parameter entropy is developed, along lines which unify current nonextensive frameworks. It recovers, as particular cases, the Tsallis and symmetric entropies, as well as the Boltzmann-Gibbs entropy. The properties of the new (q, q′)-entropy are analysed.
Published: 1998
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27. INTEGRABLE MULTIPARAMETRIC <font>SU</font>(N) CHAIN

Author: Itzhak Roditi, Angela Foerster, and Ligia M.C.S. Rodrigues
Subjects: Physics, Nuclear and High Energy Physics, Chain (algebraic topology), Integrable system, Algebraic structure, Mathematics::Quantum Algebra, General Physics and Astronomy, Astronomy and Astrophysics, Boundary value problem, Deformation (meteorology), Central element, Mathematical physics
Abstract: We analyze integrable models associated to a multiparametric SU (N)R-matrix. We show that the Hamiltonians describe SU (N) chains with twisted boundary conditions and that the underlying algebraic structure is the multiparametric deformation of SU (N) enlarged by the introduction of a central element.
Published: 1996
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28. The role of the central element in the quantum algebra underlying the twisted XXZ chain

Author: Stefano Sciuto, Itzhak Roditi, M.R-Monteiro, and L.M.C.S.Rodrigues
Subjects: High Energy Physics - Theory, Physics, Nuclear and High Energy Physics, Heisenberg model, Condensed Matter (cond-mat), FOS: Physical sciences, Quantum algebra, Condensed Matter, High Energy Physics - Theory (hep-th), Chain (algebraic topology), Boundary value problem, Algebra over a field, Central element, Mathematical physics
Abstract: We study the relationship among the XXZ Heisenberg model and three models obtained from it by various transformations. In particular, we emphasize the role of a non trivial central element $t^Z$ in the underlying algebra and its relationship with the twisted boundary conditions, $S^{\pm}_{N+1}=t^{\pm N}S^{\pm}_1$., Comment: LaTeX file, 15 pages
Published: 1995
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29. VIRIAL EXPANSION FOR AN ε-DEFORMED SYSTEM

Author: Marco A. R-Monteiro, Itzhak Roditi, and Ligia M.C.S. Rodrigues
Subjects: Physics, Equation of state, Ideal (set theory), Classical mechanics, Virial coefficient, Virial expansion, Statistical and Nonlinear Physics, Virial mass, Deformation (meteorology), Condensed Matter Physics, Radial distribution function, Astrophysics::Galaxy Astrophysics, Boyle temperature
Abstract: We compute the virial expansion of an ideal quantum q gas equation of state for small values of the deformation parameter.
Published: 1995
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30. Quantum Bose and Fermi gases with large negative scattering length in the two-bodyS-matrix approximation

Author: André Nicolai, Itzhak Roditi, André LeClair, and Edgar Marcelino
Subjects: Condensed Matter::Quantum Gases, Physics, Unitarity, Scattering length, Fermion, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010305 fluids & plasmas, Virial coefficient, Quantum electrodynamics, Metastability, Quantum mechanics, 0103 physical sciences, 010306 general physics, Quantum, Boson, S-matrix
Abstract: We study both Bose and Fermi gases at finite temperature and density in an approximation that sums an infinite number of many-body processes that are reducible to two-body scatterings. This is done for arbitrary negative scattering length, which interpolates between the ideal and unitary gas limits. In the unitary limit, we compute the first four virial coefficients within our approximation. The second virial coefficient is exact, and we extend the previously known result for fermions to bosons and also for both bosons and fermions for the upper branch on the other side of unitarity (infinitely large positive scattering length). Assuming bosons can exist in a metastable state before undergoing mechanical collapse, we map out the critical temperatures for strongly coupled Bose-Einstein condensation as a function of scattering length.
Published: 2012
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31. ν-DIMENSIONAL IDEAL QUANTUM q-GAS: BOSE-EINSTEIN CONDENSATION AND λ-POINT TRANSITION

Author: M. R-Monteiro, Itzhak Roditi, and Ligia M.C.S. Rodrigues
Subjects: Quantum fluid, Physics, Equation of state, Condensed matter physics, Lambda point, Statistical and Nonlinear Physics, Condensed Matter Physics, Ideal gas, law.invention, Superfluidity, symbols.namesake, law, Quantum mechanics, symbols, Virial expansion, Hamiltonian (quantum mechanics), Bose–Einstein condensate
Abstract: We consider an ideal quantum q-gas in ν spatial dimensions and energy spectrum ωiα pα Departing from the Hamiltonian H=ω[N], we study the effect of the deformation on thermodynamic functions and equation of state of that system. The virial expansion is obtained for the high temperature (or low density) regime. The critical temperature is higher than in non-deformed ideal gases. We show that Bose-Einstein condensation always exists (unless when ν/α=1) for finite q but not for q=∞. Employing numerical calculations and selecting for v/α the values 3/2, 2 and 3, we show the critical temperature as a function of q, the specific heat CV and the chemical potential µ as functions of [Formula: see text] for q=1.05 and q=4.5. CV exhibits a λ-point discontinuity in all cases, instead of the cusp singularity found in the usual ideal gas. Our results indicate that physical systems which have quantum symmetries can exhibit Bose-Einstein condensation phenomenon, the critical temperature being favored by the deformation parameter.
Published: 1994
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32. λ-point transition in quantum q-gases

Author: Ligia M.C.S. Rodrigues, Itzhak Roditi, and Marco A.R. Monteiro
Subjects: Condensed Matter::Quantum Gases, Physics, Phase transition, Condensed matter physics, Condensation, Lambda point, General Physics and Astronomy, Ideal gas, law.invention, law, Ideal (ring theory), Quantum, Bose–Einstein condensate, Boson
Abstract: We show that Bose-Einstein condensation is present in highly deformed q -gases, the critical temperature being higher than for the usual ideal boson gas. The specific heat C V has a λ-point transition behaviour not exhibited by non-deformed ideal gases.
Published: 1994
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33. HIGHLY DEFORMED q-OSCILLATOR SYSTEMS

Author: Ligia M.C.S. Rodrigues, Marco A.R. Monteiro, and Itzhak Roditi
Subjects: Physics, Equation of state, Fock state, Ideal (set theory), Quantum mechanics, Virial expansion, Statistical and Nonlinear Physics, Limit (mathematics), Deformation (meteorology), Condensed Matter Physics, Fock space
Abstract: We consider the large q limit of systems made of deformed Heisenberg operators. When the deformation parameter is infinite the Fock space and the statistical properties have a fermionic behaviour. We also investigate the ideal q-gas and find the virial expansion of its equation of state.
Published: 1993
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34. THERMO FIELD DYNAMICS OF DEFORMED SYSTEMS

Author: Marco A.R. Monteiro and Itzhak Roditi
Subjects: Physics, Formalism (philosophy of mathematics), Classical mechanics, Statistical and Nonlinear Physics, Mechanics, Condensed Matter Physics
Abstract: We discuss the formalism of Thermo Field Dynamics for deformed systems. We apply this method to the study of the statistics of q-bosonic oscillators.
Published: 1993
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35. Measurement of inclusive production of light meson resonances in hadronic decays of the Z0

Author: F. Kapusta, P. Abreu, A. Pullia, Klaus Hamacher, S. O. Holmgren, L. S. Vertogradov, H. Furstenau, T.B. Skaali, S. J. Alvsvaag, E. Agasi, Juan Abel Barrio, Luca Tortora, Eugene P. Gross, E. G. Anassontzis, J. P. Engel, P. Herquet, R. Contri, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, G. Vegni, N. Brummer, T. Hofmokl, C. J. Beeston, M. V. Castillo Gimenez, A. M. Segar, J. M. Levy, M. Feindt, P. Negri, Manolis Dris, E. Rosso, H. Klein, P. Roudeau, K. Osterberg, G. Damgaard, Tiziano Rovelli, D. Isenhower, M. Los, P. S. Iversen, F. Fontanelli, P. Borgeaud, Göran Jarlskog, Alberto Benvenuti, D. Johnson, O. Pingot, Mogens Dam, S. Squarcia, E. K. Johansson, D. Bertrand, H. Muller, V. Gracco, H. Foeth, C. Bosio, G. Hamel de Monchenault, Steinar Stapnes, Josef Strauss, R. J. Apsimon, R. Holmes, H. Saarikko, M. van der Heijden, C. Ronnqvist, G. Zhang, A. P. Ostankov, S. Braibant, V. Chabaud, A. Firestone, Pavlos Ioannou, F. Couchot, W. Venus, Robin Campion, M. Pimenta, B. A. Khomenko, Dietrich Liko, N. De Groot, P. Yepes, P. Privitera, Chariclia Petridou, Patrick Jarry, G. Rinaudo, Francesco Navarria, Louis Lyons, J. Wikne, J.T. Chrin, E. Graziani, Demetrios Loukas, P. Grosse-Wiesmann, A. De Angelis, C. Vander Velde, M. Vollmer, J. Bjarne, P. Collins, D. Delikaris, P. Antilogus, J. Zúñiga, M. A. Houlden, J. Davies, W. Ruckstuhl, I. Kronkvist, Gary John Barker, U. Rossi, Paolo Giacomelli, J. Werner, Daniel Bloch, Luc Pape, D. Wormald, T. Maron, H. Briand, Daniel Treille, G. A. Chelkov, V.A. Uvarov, Th. D. Papadopoulou, Guenakh Mitselmakher, S. Rossi, Ahmimed Ouraou, V.M. Golovatyuk, K. Woschnagg, P. David, Jorge-Armando Benitez Garcia, S. Delorme, A. Petrolini, T. Henkes, B. De Lotto, G. Crosetti, Evgueni Vlasov, Maria Elena Pol, S. Katsanevas, W.S.C. Williams, G. Wormser, A. De Min, I. Siccama, G. Sajot, D. Vilanova, G. Gopal, M. Zito, W. Klempt, F. Hahn, R. Pain, R. Moller, C. Lambropoulos, Ugo Amaldi, A. N. Sisakian, P. Beltran, Paul Baillon, W. Da Silva, W. A. Mitaroff, W. De Boer, E. Zevgolatakos, Lucio Cerrito, P. E. S. Nilsen, José Salt, T. Tabarelli, E. Lieb, H. Rahmani, H. Herr, L. G. Tkatchev, y Cadenas J.J. Gomez, J. N. Jackson, V. Chorowicz, K. Monig, P. Kokkinias, M. J. Bates, Nikita Smirnov, Allan Hallgren, J-C. Marin, R. Gokieli, Spyros Tzamarias, G. Maehlum, U. Haedinger, T. A. Filippas, M. Regler, P. Branchini, P. Billoir, K. Kulka, H. Palka, G. Skjevling, T.S. Spassov, H. Schneider, R. Lauhakangas, J. W. Lamsa, K. A. J. Forbes, D. J. Holthuizen, D. Fassouliotis, Ariella Cattai, D. Gamba, F. Ledroit, S. D. Hodgson, M. Witek, H. J. Hilke, P. Niss, F. Barao, F. Carena, M. Szczekowski, R. Ehret, M. Sessa, G. Sciolla, M. Battaglia, W. Van Doninck, F. Richard, C. Matteuzzi, M. Hahn, S. Almehed, S. Marti, M. Voutilainen, G. Grosdidier, M. Crozon, Alessandra Romero, I. Lippi, Stefano Ragazzi, A. Ruiz, J. Kesteman, E. I. Rosenberg, M. A E Schyns, M. Donszelmann, D.Yu. Bardin, A. Lopez-Fernandez, G. Voulgaris, U. Kruner-Marquis, Antonio Ferrer, K. Kurvinen, E. Higon, R. Seufert, S. Bosworth, F. Scuri, Danilo Zavrtanik, F. Stichelbaut, A. Andreazza, P. H. Kramer, M. Pernicka, I. Hietanen, K. Furnival, Y. Sacquin, F. Verbeure, V. Vrba, M. Michelotto, A. M. Wetherell, M. Richardson, G. Borisov, Richard Brenner, J.H. Kohne, P. F. Honore, J. E. Augustin, Borge Svane Nielsen, A. Maltezos, T.E. Pettersen, M. Davenport, J. Lindgren, M. Baubillier, Achille Stocchi, M. Karlsson, O. Ullaland, Leif J. Jönsson, S. Francon, Javier Sánchez, B. Golob, T. Buran, B. Lorstad, Wolfgang Adam, U. Trevisan, J. J. Lozano, Krzysztof Doroba, Chiara Meroni, M. Chapkin, Jan Buytaert, A. Grant, M. Mazzucato, P. Szymanski, S. Haider, A. G. Frodesen, L. Lanceri, Stéphane Plaszczynski, Ivan Mikulec, Jesus Marco, G. Lenzen, R. Strub, F. Cao, J. Dolbeau, P. Bambade, Z. Hajduk, Eleuterio Spiriti, R. Zuberi, Olga Botner, M. Bonesini, Krzysztof Korcyl, M.S. Bilenkii, Paul Allen, R. Keranen, Philippe Charpentier, Francisco Matorras, P. Vaz, F. R. Cavallo, R. Sekulin, W. D. Apel, B. Franek, Hans Dijkstra, J. J. Hernandez, T. Moa, G. E. Theodosiou, Tuure Tuuva, Clara Troncon, P. Zalewski, Fares Djama, C. Huet, Juan Fuster, Maciej Górski, Peter Kluit, M. Fernandez Alonso, S. C. Blyth, P.S.L. Booth, N. Yamdagni, A. Klovning, C. Caso, A. Hakansson, H. Stack, A. G. Olshevski, L. Chaussard, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, Charles Bricman, V. Obraztsov, G. Valenti, William Trischuk, A. Markou, C. Gaspar, Carmen García, G. Wilkinson, Yu. Belokopytov, M.D.M. De Fez Laso, M. Jonker, F. Pierre, T. Bolognese, V. Bocci, A. Passeri, R. Sosnowski, Tord Ekelof, G. Ekspong, P. O. Hulth, Giovanni Darbo, Paolo Ronchese, P. N. Ratoff, M. Mccubbin, S. Simonetti, P. V. Chliapnikov, A. Tomaradze, N. J. Kjaer, M. Begalli, K. D. Brand, J. Pennanen, N. I. Zimin, I. Roncagliolo, F. Dupont, Andrey Korytov, O.M. Kouznetsov, H. P. Borner, V. Lepeltier, Stefan Schael, W. Kucewicz, H. B. Crawley, R. Zukanovich Funchal, Marc Winter, E. Karvelas, M. P. Clara, M. Kopf, P. Vincent, V. G. Timofeev, B. Grossetete, Maria Roberta Monge, O. Toker, A. Zalewska, W. T. Meyer, Paolo Checchia, Rupert Leitner, A. Daum, L. Bugge, P. Delpierre, E. Daubie, Martino Margoni, R. Mcnulty, E. Fokitis, A. J. Camacho Rozas, E. Cortina, D. Z. Toet, G. D. Alekseev, E. Torassa, Jan Krolikowski, N. N. Khovanski, P. Siegrist, G. Matthiae, W. Bartl, H. Wahlen, V. Kostukhin, Ariel Goobar, Ph. Gavillet, J. Cuevas Maestro, G. Myatt, S. Uberschar, L. Mathis, U. Mjornmark, G. Tristram, Paula Eerola, W. Bonivento, C. Defoix, J. A. Valls Ferrer, G. Galeazzi, F. Fulda-Quenzer, Jacques Lemonne, Alexander Lincoln Read, M. Szeptycka, B. Dalmagne, T. Todorov, H. Burmeister, J. P. Gerber, J. P. Laugier, Laurent Chevalier, W. Ershaidat, G. W. Van Apeldoorn, R. Mckay, R. Barate, Claire Bourdarios, A. Algeri, V. Ruhlmann-Kleider, C. O. Higgins, G. E. Kalmus, K. H. Becks, E. Vallazza, J. M. Brunet, Laurent Mirabito, Robert S. Brown, L. Ventura, Milos Lokajicek, Mario Sannino, M. L. Turluer, D. Reid, R. Lindner, Y. Lemoigne, K. Hultqvist, Georgios Stavropoulos, M. A. Lopez Aguera, F. J. Harris, A. Koch Mehrin, J. E. Hooper, Carlos Lacasta, Matteo Pegoraro, L. K. Resvanis, R. Orava, Fernand Grard, Gianni Zumerle, Y. Dufour, P. D. Dauncey, Sandor Czellar, M. Weierstall, G. Smadja, B. Nijjhar, P. N. Bogolubov, Bruno Schulze, B. Bouquet, O. Chikilev, Massimo Caccia, Vladimir Nikolaenko, G. Polok, Ugo Gasparini, P. Poropat, Andromachi Tsirou, Christine Kourkoumelis, J. Drees, T.L. Hessing, E. Dahl-Jensen, Guido Barbiellini, Andre Augustinus, A. Wehr, J. Guy, Natale Demaria, Evangelos Gazis, D. Benedic, Tim Adye, M. Berggren, G. Meola, P. Juillot, C. Stanescu, George Kalkanis, P. B. Renton, D. C. Fries, E. C. Katsoufis, Marta Calvi, J. Chauveau, I. A. Tyapkin, Vincenzo Canale, Geoffrey Smith, L.J. Carroll, P. Van Dam, C. De La Vaissiere, P. Weilhammer, Themistocles Bowcock, A. Tilquin, T. Lesiak, Pawel Jalocha, Barry King, R. Frühwirth, J. Timmermans, F. Simonetto, A. Lipniacka, G. Leder, B. Åsman, B. Koene, Paolo Morettini, D. Crennell, F. Mandl, J. G. Loken, P. Beilliere, W. Hao, O. Barring, J. Ridky, M. Dracos, E.N. Tsyganov, J. H. Wickens, Marco Paganoni, Jose Luis Contreras, L. Vitale, D. Radojicic, P. Lutz, Andrea Perrotta, G. Sette, A. Elliot Peisert, H. De Boeck, B. Jean-Marie, M. Tyndel, J. Maillard, B. Boštjančič, V. Perevozchikov, Tiziano Camporesi, G. Cosme, A. Baroncelli, N. G. Redaelli, Marco Bozzo, P. Frenkiel, J. Straver, F. Waldner, C. Walck, J. L. Fousset, Mitchell Wayne, V. V. Lapin, A. Chan, C. De Clercq, W. J. Murray, Itzhak Roditi, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, LUND MONTE-CARLO, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, E+E-ANNIHILATION, 01 natural sciences, JET FRAGMENTATION, K+P INTERACTIONS, PHYSICS, Nuclear physics, GEV/C, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RHO0, Física nuclear, Multiplicity (chemistry), 010306 general physics, Particle Physics - Experiment
Abstract: A study of inclusive production of the meson resonances ρ0, K*0 (892), f{hook}0 (975) and f{hook}2 (1270) in hadronic decays of the Z0 is presented. The measured mean meson multiplicity per hadronic event is 0.83 ± 0.14 for the ρ0 0.64 ± 0.24 for the K*0 (892), 0.10 ± 0.04 for the f{hook}0 (975) in the momentum range p > 0.05pbeam (xp > 0.05) and 0.11 ± 0.05 for the f{hook}2 (1270) for xp > 0.1. These values and the corresponding differential cross sections ( 1 σhadr) dσ dxp for the vector mesons are in good agreement with the predictions of the JETSET 7.3 PS and HERWIG 5.4 models. The f{hook}2 (1270) production is overestimated by HERWIG but its xp-shape is correctly reproduced. The measured ratios of the production cross sections σ(f{hook}2(1270)) σ(ρ0) = 0.22 ± 0.08 and σ(f{hook}2(1270)) σ(f{hook}0(975)) = 3-1 +7 for xp > 0.1 are consistent with the results obtained in hadronic reactions. © 1993.
Published: 1993
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36. The reaction e+e− → γγ(γ) at Z0 energies

Author: A. Campion, S. Volponi, R. Zukanovich Funchal, Marc Winter, C. Troncon, Ariel Goobar, J. H. Koehne, K. H. Becks, E. Vallazza, C. Vander Velde, P. Abreu, P. Borgeaud, Itzhak Roditi, Gueorgui Chelkov, M. Bonapart, F. Couchot, G. Hamel de Monchenault, J. Bjarne, P. Antilogus, F. Alted, P. Negri, W. Kucewicz, G. Matthiae, J.H. Bibby, E.N. Tsyganov, J. H. Wickens, K. Hamacher, W. Klempt, S-O. Holmgren, N. Crosland, W. Venus, Jose Luis Contreras, Tiziano Rovelli, G. Wormser, Pieter David, Peter M. Allen, B. A. Khomenko, M. Sesa, S. Gumenyuk, R. A. Brenner, J. Velasco, M. Pimenta, M. Voutilainen, G. Grosdidier, W. D. Apel, F. Richard, C. Matteuzzi, M. Crozon, D. Radojicic, Jan Ridky, N. De Groot, A. Stocchi, Francesco Navarria, J. Zúñiga, M. Kopf, S. J. Alvsvaag, M. Hahn, Alessandra Romero, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, W. Krupinski, I. Lippia, M. Jonker, A. Ruiz, J. Kesteman, G. Borisov, G. Kantardjian, C. J. Beeston, n. Brunner, B. Korzen, P. Checcia, S. Marti, T. Kreuzberger, R. Ovara, F. Verbeue, A. B. Fenyuk, P. Lutz, J. Pyyhtia, S. Almehed, F. Stichelbaut, F. Hahn, W. Van Doninck, R. Mc Kay, F. Adami, R. Keranen, H. J. Hilke, Francisco Matorras, Goeran Jarlskog, N. Yamdagni, P. F. Honore, D. Johnson, Th. D. Papadopoulou, Guenakh Mitselmakher, L. Di Ciaccio, R. Zitoun, A. Katargin, Mogens Dam, V. Canale, D. Isenhower, M. Los, R. Llosa, Claudia J. Stubenrauch, R. Seufert, H. Forsbach, Jon Christopher Wikne, C. Defoix, V. Lepeltier, J. E. Augustin, A. Pinsent, Demetrios Loukas, C. Ronnqvist, G. Zhang, Eleuterio Spiriti, F. Fulda-Quenzer, T. Todorov, A. P. Ostankov, J. Derkaoui, S. Squarcia, R. Holmes, H. Saarikko, T. Tabarelli, G. Vegni, Ph. Gavillet, T. Moa, T. Braun, S. Haider, K. Woschnagg, V. Kostukhin, M. L. Turluer, E. Graziani, E. Lieb, Edoardo Castelli, D. Reid, F. Pierre, E. K. Johansson, C. Bosio, J. M. Brunet, H. Foeth, José Salt, G. Gopal, C. Caso, D. Fassouliotis, Ariella Cattai, Luc Pape, Ugo Gasparini, F. Ledroit, Jacques Lemonne, E. J. Sanchez, Gianni Zumerle, B. Ueberschaer, M. Boratav, P. Roudeau, Jorge-Armando Benitez Garcia, T. P. A. Åkesson, O. Ullaland, G. Ekspong, Leif J. Jönsson, Piotr Zalewski, L. Vibert, P. Branchini, F. Kapusta, H. B. Crawley, Guido Barbiellini, Tiziano Camporesi, P. Poropat, Andromachi Tsirou, J. Guy, U. Trevisan, Giovanni Darbo, A. De Angelis, P. Collins, D. Delikaris, V. Vrba, N. van Eijndhoven, H. Schneider, Tim Adye, E. G. Anassontzis, M. Begalli, A. De Min, C. Kourkoumelis, Joao Varela, J. Werner, J. P. Engel, M. V. Castillo Gimenez, J. J. Gomez Y Cadenas, B. Franek, V.A. Uvarov, Daniel Bloch, S. Braibant, Borge Svane Nielsen, R. Lauhakangas, N. G. Redaelli, J. J. Lozano, M. H. Gros, H. Furstenau, Ahmimed Ouraou, V.M. Golovatyuk, A. G. Frodesen, S. Ueberschaer, Jan Buytaert, Marco Bozzo, M. T. Trainor, A. Lopez-Fernandez, D. Benedic, A. Klovning, G. Damgaard, Tuure Tuuva, A. Maltezos, A. G. Olshevski, M. Fernandez Alonso, Z. Hajduk, P. Frenkiel, S. Dagorte, T. Hofmokl, Marek Szczekowski, V. Obraztsov, Maciej Górski, Andrey Korytov, Maria Roberta Monge, A. Zalewska, Dietrich Liko, P. Privitera, W. T. Meyer, O. Pingot, M. Donszelmann, Jan Krolikowski, N. N. Khovanski, W. Bartl, E. Rosso, H. Klein, A. Hakansson, M. Michelotto, J. A. Valls Ferrer, I. Roncagliolo, B. Dalmagne, Laurent Chevalier, M. S. Bilenky, J. P. Laugier, M. Schaeffer, L.J. Carroll, N.I. Zimin, V. Gracco, C. Walck, K. D. Brand, B. De Lotto, P. Kokkinias, V. Ruhlmann, Milos Lokajicek, W. Dulinski, P. V. Chliapnikov, P. Weilhammer, Daniel Treille, M. Turala, W.S.C. Williams, Pavlos Ioannou, R. Moeller, D. Bertrand, L. Bugge, A. J. Camacho Rozas, Antonio Ferrer, J. Strauss, Roberto Cirio, Lucio Cerrito, L. K. Resvanis, D. Z. Toet, P. Folegati, W. Ruckstuhl, D. Crennell, F. Mandl, V. Chorowicz, Stefaan Tavernier, H. Wahlen, F. J. Harris, P. Beltran, J. Lindgren, Chiara Meroni, B. W. Heck, M. Richardson, J. E. Hooper, Carlos Lacasta, A. Perrotta, Krzysztof A. Rybicki, D. Wormald, A. Lettessier-Sevlon, M. Baubillier, Massimo Caccia, Vladimir Nikolaenko, G. Crosetti, Evgueni Vlasov, Guy Wilkinson, R. Lucock, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, T. Spasoff, J. Cuevas Maestro, Luca Tortora, Francesca Romana Cavallo, H. Herr, Mitchell Wayne, A. Firestone, P. Juillot, M. Mazzucato, F. Waldner, F. Djama, P. Szymanski, M. Battaglia, M. Pernicka, I. Hietanen, T. Bolognese, V. V. Lapin, Jesus Marco, G. Lenzen, Ph. Charpentier, R. Strub, J. E. Campagne, C. De Clercq, R. Sekulin, M. Koratzinos, W. J. Murray, Y. Dufour, J. J. Hernandez, L. Lyon, J. P. Gerber, P. D. Dauncey, G. Maehlum, P. O. Hulth, G. Sette, A. Elliot Peisert, M. Vollmer, R. Mc Nulty, H. De Boeck, B. Jean-Marie, M. Tyndel, K. W. Glitza, J. Maillard, V. Perevozchikov, G. Polok, U. Rossi, Paolo Giacomelli, William Trischuk, B. Nijjhar, P. Delpierre, E. Daubie, S. Delorme, M. Berggren, M. Zito, A. Augustinus, C. Stanescu, S. D. Hodgson, G. Myatt, G. E. Theodosiou, A. Passeri, J.M. Gago, Pierre Billoir, S. C. Blyth, B. Grossetete, Allan Hallgren, Giovanni Valenti, P. Vaz, G. Smadja, M.D.M. De Fez Laso, M. Szeptycka, A. Lounis, S. Biagi, H. P. Borner, Stefan Schael, Natale Demaria, D. Y. Bardin, R. Dzhelyadin, A. Markou, Olga Botner, L. Mathis, George Kalkanis, P. B. Renton, Patrick Jarry, G. Rinaudo, D. C. Fries, Krzysztof Korcyl, E. C. Katsoufis, U. Mjoernmark, M. J. Bates, Paul Baillon, Jose M. Benlloch, A. Grant, Carmen García, Marta Calvi, Alexander Lincoln Read, Geoffrey Smith, G. Leder, D. Gamba, L. S. Vertogradov, G. Voulgaris, I. Herbst, H. Palka, Juan Fuster, G. Skjevling, J. W. Lamsa, Hans Dijkstra, F. Barao, E. Higon, F. Scuri, A. M. Wetherell, L. Lanceri, J. N. Jackson, U. Kruener-Marquis, Mario Sannino, Paolo Ronchese, N. J. Kjaer, B.D. Hyams, M. A. Lopez Aguera, G. Tristram, Paula Eerola, B. Åsman, E. I. Rosenberg, L. O. Eek, Josef Hrubec, G. E. Kalmus, Fernand Grard, K. Kurvinen, Javier Sánchez, A. M. Segar, B. Bouquet, M. De Beer, P. S. Iversen, F. Fontanelli, M. Bonesini, G. W. Van Apeldoorn, R. J. Apsimon, Y. Sacquin, Pierre Astier, L. G. Tkatchev, L. Ventura, W. Bonivento, Tord Ekelof, H. Staeck, Hans Muller, B. Loerstad, P. N. Bogolubov, M. Pegoraro, E. Dahl-Jensen, H. Burmeister, Robert S. Brown, D. Vilanova, P. Herquet, J-C. Marin, G. Cosme, R. Gokieli, R. Contri, Spyros Tzamarias, M. Davenport, U. Nau-Korzen, A. Baroncelli, K. Doroba, E. Menichetti, Stefano Ragazzi, M. Houlden, Manolis Dris, P. Van Dam, W.H. Range, F. Cao, E. Lillethun, R. Sosnowski, F. Naraghi, V. G. Timofeev, Renato Turchetta, C. De La Vaissiere, G. Galeazzi, K. Moenig, A. Tilquin, Martino Margoni, E. Fokitis, J. Dolbeau, P. Bambade, Pawel Jalocha, Barry King, P.S.L. Booth, P. N. Ratoff, D. J. Holthuizen, K. Furnival, Charles Bricman, Wolfgang Adam, R. Frühwirth, Yu. Belokopytov, J. Timmermans, G. D. Alekseev, M. P. Clara, A. Lipniacka, M. Mc Cubbin, K. Hultqvist, Maria Elena Pol, S. Katsanevas, D. Husson, T. A. Filippas, M. Regler, G. Stavropoulo, I. A. Tyapkin, P. Yepes, H. Mueller, P. Kluit, B. Koene, A. Pullia, Paolo Morettini, J. G. Loken, P. Beilliere, W. A. Mitaroff, R. Pain, O. Barring, S. Maltezos, J. Drees, Evangelos Gazis, M. Dracos, Abreu, P., Adama, W., and Canale, Vincenzo
Subjects: Physics, Geometric matching, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Lambda, 01 natural sciences, Nuclear physics, Excited state, 0103 physical sciences, Physique des particules élémentaires, Atomic physics, 010306 general physics
Abstract: The total and differential cross-sections for the reaction e+e- → γγ(γ) are measured at centre of mass energies around 91 GeV using an integrated luminosity of 4.7 pb-1. The aggreement with QED prediction is good. Consequently there is no evidence for non-standard channels which would have the same experimental signature. The lower limits on the QED cuttoff parameters are Λ+ > 113 GeV and Λ- > 95 GeV. An upper limit on the effective coupling between a possible excited electron and the gamma is derived. At 95% confidence level the branching ratios for Z0 decay into π0γ, ηψ and γγγ are below 1.5 × 10-4, 2.8 × 10-4 and 1.4 × 10-4 respectively., 0, info:eu-repo/semantics/published
Published: 1991
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37. Study of the leptonic decays of the Z0 boson

Author: A. Klovning, U. Mjoernmark, Sandor Czellar, G. Polok, M. Bozzo, V.A. Uvarov, A. Ruiz, Ugo Gasparini, Paolo Pasini, P. Queru, W. K. Van Doninck, F. Richard, C. Matteuzzi, M. Hahn, B. Bouqquet, A. G. Frodesen, Andrey Korytov, Jan Krolikowski, N. N. Khovanski, W. Bartl, B. V. Batyunia, R. Pain, B. Koene, E. Lieb, A. Sebastia, I. Lippi, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, C. Vander Velde, C. Lambropoulos, Ugo Amaldi, E. Zevgolatakos, R. Rongved, S. Almehed, C. Pinori, J. P. Laugier, J.A.M.A. Buytaert, A.N. Diddens, U. Kruener-Marquis, M. Gorbics, J.A. Lidbury, D. Radojicic, J.P. Grillet, M. Pimenta, N. De Groot, M. De Beer, G. Wormser, Ariella Cattai, Jacques Lemonne, A. Stocchi, Guido Barbiellini, M. Pernicka, G. Lenzen, J. E. Campagne, M. Koratzinos, L. Guglielmi, M. Bonapart, Wolfgang Adam, D. Bertrand, Francesco Navarria, Paolo Morettini, J. G. Loken, J.F. Genat, B. Kisielewski, Paolo Ronchese, T. Kreuzberger, J.C. Raoul, G. Goujon, G. Crosetti, Evgueni Vlasov, M. Nigro, Jan Ridky, A. S. Vodopianov, Tuure Tuuva, Clara Troncon, Itzhak Roditi, Gueorgui Chelkov, J. Guy, B. Dalmagne, M. Kopf, J. N. Jackson, P. Kokkinias, M. Passeneau, S. Ferroni, Z. Hajduk, F. Udo, G. Petrucci, M. Nordberg, R. Lauhakangas, H. Herr, Winfried Mitaroff, P. Beltran, Louis Lyons, C.W. Salgado, J. Mas, P. Lutz, G. Tristram, P. Laurikainen, S. Du, Paula Eerola, O. Ullaland, F. Djama, C. Gaspar, S. Haider, D.N. Edwards, C. Caso, M. Sessa, V. Castillo Gimenez, P. Negri, Tim Adye, C. De La Vaissiere, Laurent Chevalier, U. Trevisan, N. Crosland, J.V. Allaby, M. Jonker, Y. Sacquin, Maciej Górski, A. B. Fenyuk, L. Mattsson, J.J. Jaeger, Tiziano Rovelli, M. Cresti, J.H. Bibby, G.P. Barreira, B. Lund-Jensen, G. E. Kalmus, G. D. Alekseev, J. M. Yelton, A. Passeri, S. Gawne, Klaus Hamacher, A. Firestone, G. Kantardjian, C. De Clerco, Milos Lokajicek, K. Woschnagg, M. Nonni, P. Branchini, J. Krstic, Göran Jarlskog, W. Bell, N. I. Zimin, Stavros Maltezos, Mikael Berggren, H. Hofmann, J. Cuevas Maestro, H. B. Crawley, V. Lepeltier, H. Forsbach, F. Fulda-Quenzer, T. Bolognese, E. C. Katsoufis, G. Gopal, A. Letessier-Selvon, S. Gumenyuk, Nikolai Smirnov, V. Ruhlmann, O. Barring, G. Zhang, Paolo Checchia, B. Franek, W. Kucewicz, G. Matthiae, C. Stanescu, L.J. Carroll, M. L. Turluer, M. Vollmer, D. Reid, Ph. Gavillet, P. Spentzouris, E. Graziani, B. Jean-Marie, A. Hakansson, E. J. Sanchez, W. D. Apel, S. J. Alvsvaag, Roland Horisberger, L. Bugge, G. Hamel de Monchenault, E. G. Anassontzis, J. P. Engel, I. Kontaxis, P. Lorenz, P. Roudeau, M. J. Bates, Edoardo Castelli, D. Z. Toet, J. Joensuu, J. M. Brunet, H. Lebbolo, Josef Strauss, R. Llosa, N. Bingefors, P. Van Dam, M. Fernandez Alonso, P. Privitera, M.V. Reis, P. Weilhammer, Luc Pape, D. Imbault, R. Zitoun, D. Langerveld, P. Abreu, P. Borgeaud, Borge Svane Nielsen, M. H. Gros, F. J. Harris, H. Foeth, P. Allen, Gianni Zumerle, F. Astesan, Toralf Bernhard Skaali, Maria Roberta Monge, S. Barlag, A. Zalewska, Valery Pozdnyakov, G. Cabras, Krzysztof Doroba, Chiara Meroni, A.K. Topphol, C. Brand, M. Mc Cubbin, G. Ekspong, K. Hultqvist, Renato Turchetta, B. Grossetete, Allan Hallgren, B. Korzen, P. Poropat, G. Damgaard, C. Poiret, L. Tortora, Giovanni Valenti, I. Belokopytov, M. Boratav, D. Gamba, G. Voulgaris, Sverker Johansson, W. T. Meyer, Pierre Billoir, Mogens Dam, K. Rybicki, W. Venus, B. Muryn, V. Obraztsov, P. Aarnio, V. Gracco, M. Schaeffer, Andre Augustinus, P. Herquet, H. Palka, G. Skjevling, R. Contri, Giovanni Darbo, S. Simonetti, M. Voutilainen, G. Grosdidier, R. Sekulin, R. Dzhelyadin, T. Pettersen, Jose M. Benlloch, A. Grant, R.B. Kadyrov, F. Barao, P. V. Chliapnikov, M. Crozon, Craig Buttar, A. De Angelis, D. Delikaris, N. van Eijndhoven, J. Werner, L. Viseu Melo, E. Sundell, M.I. Laakso, Daniel Bloch, Hans Dijkstra, I. Herbst, Katri Huitu, T.K. Truong, B. Goret, M. Baubillier, R. Lucock, Alessandra Romero, Georgios Stavropoulos, J.M. Noppe, M. Turala, Barry King, Ahmimed Ouraou, Pavlos Ioannou, F. Simonetto, R. Gokieli, A. Tilquin, J. Perez, I.A. Gritsaenko, G. Leder, G. B. Chadwick, E. Higon, R. Seufert, V.M. Golovatyuk, W.S.C. Williams, Daniel Treille, J. J. Hernandez, R. Frühwirth, Manolis Dris, J. Pyythia, B. Åsman, P. Adrianos, C. J. Beeston, F. Scuri, Juan Fuster, N.K. Vishnevskij, A. M. Zaitsev, E. K. Johansson, J. E. Hooper, J.C. Le Grand, J. Timmermans, J. Pagot, A. Pullia, J.-E. Augustin, A. M. Wetherell, E. Lillethun, T. Moa, G. Maehlum, K. Pakonski, F. Bianchi, J. Michałowski, Kjell Fransson, L. Lanceri, D. Husson, J. Barlow, E. Vela, Lucio Cerrito, T. Buran, J.B.M. Pattison, I. A. Tyapkin, M. A. Houlden, D. Crennell, F. Mandl, A. Pinsent, A.M. Romaya, M. Ellila, Guenakh Mitselmakher, A.J. Camacho Rozas, D. Vilanova, G. Smadja, D.Yu. Barbin, S. Squarcia, K. W. Glitza, A. Zinchenko, E. Menichetti, Olga Botner, Krzysztof Korcyl, H. Saarikko, T. Hofmokl, Marek Szczekowski, N. Dimitriou, Stefano Ragazzi, José Salt, F. Couchot, R. Sosnowski, B. W. Heck, E. Rosso, H. Klein, H. Schneider, V. G. Timofeev, S. Nounos, J.-P. Vanuxem, Panos Kostarakis, M.-H. Gros, A. Markou, F. Cao, V. Falaleev, E. Lillestol, V. Chorowicz, O.A. Maeland, R. Downs, J. Haissinski, S. Braibant, Tord Ekelof, H. Staeck, G. Galeazzi, R. Strub, B. Loerstad, K. Moenig, S. Cairanti, H. Burmeister, D. Sacco, M. Mazzucato, E. Fokitis, Robert S. Brown, J. Drees, P. Szymanski, Patrick Jarry, M. Winter, G. Rinaudo, Evangelos Gazis, G. Vegni, N. Brummer, W. H. Range, E. Spiriti, B.D. Hyams, E. I. Rosenberg, K. Kurvinen, M. Dracos, R. Ragazzon, P. Siegrist, J-C. Marin, M. Davenport, B. Grung, A. A. Rademakers, S. O. Holmgren, D. Benedic, D. Loukas, George Kalkanis, P. B. Renton, M. Flinn, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, A. M. Segar, D. C. Fries, G. Kuhn, P. S. Iversen, F. Fontanelli, J. Skeens, C. Astor Ferreres, J. Velasco, Marta Calvi, L. Tkachev, Vincenzo Canale, Geoffrey Smith, G. W. Van Apeldoorn, G. Sette, L.S. Curwen, W. Dulinski, L. Ventura, Håkan T Johansson, B. Lavigne, S. Palma Lopes, S. Quinton, Hans Muller, T. Odegaard, P. N. Bogolubov, Christine Kourkoumelis, E. Dahl-Jensen, H. De Boeck, M. Tyndel, P. Vaz, D. Bollini, M. Pegoraro, J. Maillard, P. Jalocha, S. Biagi, H. P. Borner, V. Kadyshevskiy, V. Perevozchikov, Theodora Papadopoulou, Tiziano Camporesi, N. G. Redaelli, P. Frenkiel, R. Moeller, A. Baroncelli, A. Hrisoho, H. J. Hilke, C. Bosio, F. Waldner, K. D. Brand, Antonio Ferrer, Roberto Cirio, L. K. Resvanis, C. Walck, G. E. Theodosiou, M. Zito, O. Pingot, K. Spang, E. Sanchis, L. Mathis, Massimo Caccia, N. Yamdagni, Paul Baillon, Alexander Lincoln Read, Vladimir Nikolaenko, M. Szeptycka, P. Juillot, M. Mur, M.A. Lopez Aguera, Francesca Romana Cavallo, Mitchell Wayne, V. V. Lapin, P. O. Hulth, F. Rossel, P. Delpierre, E. Daubie, G. Myatt, J.M. Gago, Joao Varela, P. Kluit, P. R. S. Gomes, S. Ueberschaer, A. Maltezos, M. Gaillard, A. Campion, R. Zukanovich Funchal, H. Wahlen, Ariel Goobar, D. Fraissard, K. H. Becks, P. Antilogus, M. E. Veitch, J. Bjarne, W. Klempt, F. Hahn, F. Stichelbaut, R. Mc Kay, Cesare Chiccoli, F. Adami, M. Barranco-Luque, R. Keranen, Philippe Charpentier, Mario Sannino, R. Orava, S. Topp-Jorgensen, Maria Elena Pol, S. Katsanevas, T. A. Filippas, M. Regler, Yu. Sedykh, B. Van Eijk, H. Mueller, J. Dolbeau, P. Folegati, P.S.L. Booth, P. N. Ratoff, J. J. Gómez Cadenas, J. Marco, M. P. Clara, Piotr Zalewski, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, Heyd, Yvette, Abreu, P., Adam, W., Canale, Vincenzo, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Width ratio, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Neutrino, 010306 general physics, Particle Physics - Experiment, Lepton, Boson
Abstract: Measurements are presented of the cross section ratios Rℓ = σℓ(e+e-→ℓ+ℓ -)/σhh(e+e-→hadrons) for ℓ = e, μ and τ using data taken from a scan around the Z0. The results are Re = (5.09±0.32±0.18)%, Rμ = (4.96±0.35±0.17)% and Rτ,=(4.72±0.38± 0.29)% where, for the ratio Re, the t-channel contribution has been subtracted. These results are consistent with the hypothesis of lepton universality and test this hypothesis at the energy scale s ∼ 8300 GeV2. The absolute cross sections σℓ(e+e-→ℓ +ℓ-) have also been measured. From the cross sections the leptonic partial widths Γe = (83.2±3.0±2.4) MeV, (ΓeΓμ) 1/2=(84.6±3.0±2.4) MeV and (ΓeΓτ) 1/2=(82.6±3.3±3.2) MeV have been extracted. Assuming lepton universality the ratio Γℓ/Γh=(4.89±0.20± 0.12) × 10-2 was obtained, together with Γℓ=(83.6±1.8±2.2) MeV. The number of light neutrino species is determined to be Nv=3.12±0.24±0.25. Al the data are consistent with the predictions of the standard model., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1990
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38. Quantum superalgebras at roots of unity and non-abelian symmetries of integrable models

Author: Itzhak Roditi and Christian Korff
Subjects: High Energy Physics - Theory, Pure mathematics, Integrable system, Root of unity, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, symbols.namesake, Condensed Matter - Strongly Correlated Electrons, Mathematics::Quantum Algebra, 0103 physical sciences, Mathematics - Quantum Algebra, FOS: Mathematics, Quantum Algebra (math.QA), 0101 mathematics, Abelian group, Invariant (mathematics), 010306 general physics, Mathematical Physics, Condensed Matter - Statistical Mechanics, Frobenius theorem (real division algebras), Mathematics, Nonlinear Sciences - Exactly Solvable and Integrable Systems, Statistical Mechanics (cond-mat.stat-mech), Strongly Correlated Electrons (cond-mat.str-el), 010102 general mathematics, Order (ring theory), Statistical and Nonlinear Physics, Superalgebra, High Energy Physics - Theory (hep-th), Homogeneous space, symbols, Exactly Solvable and Integrable Systems (nlin.SI)
Abstract: We consider integrable vertex models whose Boltzmann weights (R-matrices) are trigonometric solutions to the graded Yang-Baxter equation. As is well known the latter can be generically constructed from quantum affine superalgebras $U_{q}(\hat g)$. These algebras do not form a symmetry algebra of the model for generic values of the deformation parameter $q$ when periodic boundary conditions are imposed. If $q$ is evaluated at a root of unity we demonstrate that in certain commensurate sectors one can construct non-abelian subalgebras which are translation invariant and supercommute with the transfer matrix and therefore with all charges of the model. In the line of argument we introduce the restricted quantum superalgebra $U^{res}_q(\hat g)$ and investigate its root of unity limit. We prove several new formulas involving supercommutators of arbitrary powers of the Chevalley-Serre generators and derive higher order quantum Serre relations as well as an analogue of Lustzig's quantum Frobenius theorem for superalgebras., Comment: 31 pages, tcilatex (minor typos corrected)
Published: 2001
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39. Integrable systems and quantum groups

Author: Itzhak Roditi
Subjects: Physics, Integrable system, General Physics and Astronomy, Quantum inverse scattering method, Quantum, Mathematical physics
Abstract: We present some aspects of the study of quantum integrable systems and its relation to quantum groups.
Published: 2000
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40. Bethe ansatz solution of the closed anisotropic supersymmetric U model with quantum supersymmetry

Author: Angela Foerster, Itzhak Roditi, Jon Links, and K. E. Hibberd
Subjects: Physics, Nuclear and High Energy Physics, Nonlinear Sciences - Exactly Solvable and Integrable Systems, High Energy Physics::Phenomenology, General Physics and Astronomy, FOS: Physical sciences, Astronomy and Astrophysics, Supersymmetry, Bethe ansatz, High Energy Physics::Theory, Nonlinear Sciences::Exactly Solvable and Integrable Systems, Lattice (order), Algebraic number, Exactly Solvable and Integrable Systems (nlin.SI), Anisotropy, Quantum, Mathematical physics
Abstract: The nested algebraic Bethe ansatz is presented for the anisotropic supersymmetric $U$ model maintaining quantum supersymmetry. The Bethe ansatz equations of the model are obtained on a one-dimensional closed lattice and an expression for the energy is given., 7 pages (revtex), minor modifications. To appear in Mod. Phys. Lett. A
Published: 1999

41. Integrable open supersymmetric U model with boundary impurity

Author: Itzhak Roditi, K. E. Hibberd, Jon Links, and Angela Foerster
Subjects: Physics, Integrable system, Strongly Correlated Electrons (cond-mat.str-el), General Physics and Astronomy, Boundary (topology), FOS: Physical sciences, Bethe ansatz, Condensed Matter - Strongly Correlated Electrons, Nonlinear Sciences::Exactly Solvable and Integrable Systems, Chain (algebraic topology), Impurity, Condensed Matter::Strongly Correlated Electrons, Boundary value problem, Algebraic number, Mathematical physics
Abstract: An integrable version of the supersymmetric U model with open boundary conditions and an impurity situated at one end of the chain is introduced. The model is solved through the algebraic Bethe ansatz method and the Bethe ansatz equations are obtained., Comment: RevTeX, 8 pages, no figures, final version to appear in Phys. Lett. A
Published: 1999
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42. New integrable model of correlated electrons with off-diagonal long-range order from $so(5)$ symmetry

Author: Angela Foerster, Itzhak Roditi, and Jon Links
Subjects: Physics, SO(5), Integrable system, Condensed Matter (cond-mat), Lattice (group), General Physics and Astronomy, FOS: Physical sciences, Statistical and Nonlinear Physics, Condensed Matter, Symmetry (physics), Bethe ansatz, Ground state, Realization (systems), Mathematical Physics, Hamiltonian (control theory), Mathematical physics
Abstract: We present a new integrable model for correlated electrons which is based on a $so(5)$ symmetry. By using an $\eta$-pairing realization we construct eigenstates of the Hamiltonian with off-diagonal long-range order. It is also shown that these states lie in the ground state sector. We exactly solve the model on a one-dimensional lattice by the Bethe ansatz., Comment: RevTex, 4 pages
Published: 1998

43. A bosonic multi-state two-well model

Author: Gilberto Santos, Angela Foerster, and Itzhak Roditi
Subjects: High Energy Physics - Theory, Statistics and Probability, Experimental control, Generalization, FOS: Physical sciences, General Physics and Astronomy, Bethe ansatz, Theoretical physics, Algebraic number, Mathematical Physics, Quantum tunnelling, Condensed Matter::Quantum Gases, Physics, Quantum Physics, Nonlinear Sciences - Exactly Solvable and Integrable Systems, Multi state, Condensed Matter::Other, Operator (physics), Exchange interaction, Statistical and Nonlinear Physics, Mathematical Physics (math-ph), Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, High Energy Physics - Theory (hep-th), Quantum Gases (cond-mat.quant-gas), Modeling and Simulation, Exactly Solvable and Integrable Systems (nlin.SI), Quantum Physics (quant-ph), Condensed Matter - Quantum Gases
Abstract: Inspired by the increasing possibility of experimental control in ultracold atomic physics, we introduce a new Lax operator and use it to construct and solve models with two wells and two on-well states together with its generalization for n on-well states. The models are solved by the algebraic Bethe ansatz method and can be viewed as describing two Bose-Einstein condensates allowing for an exchange interaction through Josephson tunnelling., 12 pages, 2 figures
Published: 2013
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44. A measurement of the tau lifetime

Author: C. Gaspar, S. Francon, M. Jonker, A. B. Fenyuk, Andrea Perrotta, W. Da Silva, E. Graziani, M. Crozon, R. Mc Nulty, P. Vaz, Luis Peralta, E. Dahl-Jensen, F. Simonetto, P. Abreu, G. Smadja, T. Maron, O.M. Kouznetsov, C. Bricman, A. Elliot Peisert, M. Fernandez Alonso, M. Bozzo, A. Pullia, V. Obraztsov, C. Vander Velde, Stefano Ragazzi, A. Hakansson, V. Lepeltier, D. Vilanova, P. Van Dam, J-C. Marin, M. Szeptycka, Rupert Leitner, J. Kesteman, G. D. Alekseev, G. Darbo, B. Jean-Marie, N. Ershaidat, G. Skjevling, M. Mc Cubbin, A. Hallgren, K. Hultqvist, Georgios Stavropoulos, M. Tyndel, T.A. Filippas, K. Woschnagg, T. Todorov, F. Mandl, Ph. Gavillet, I. Lippi, L. Mathis, H. P. Borner, Stefan Schael, H. Furstenau, A. Ferrer, O. Tchikilev, M. Voutilainen, G. Grosdidier, A. Rybin, F. Carena, Louis Lyons, Juan Abel Barrio, J.E. Hooper, B. Loerstad, V. Lapin, M.A.E. Schyns, A. N. Sisakian, M. A. Winter, M. Dracos, P. V. Chliapnikov, R. Aleksan, B. Bostjancic, A. Daum, L. K. Resvanis, U. Gasparini, M. Davenport, A. Romero, B.S. Nielsen, O. Botner, Guido Barbiellini, J. Guy, Tim Adye, M. Richardson, Claire Bourdarios, J. P. Gerber, W.S.C. Williams, T. Henkes, B. De Lotto, Evgueni Vlasov, M. Szczekowski, M. Koratzinos, Maria Elena Pol, S. Katsanevas, J.-E. Augustin, W.A. Mitaroff, H. Burmeister, D. Y. Bardin, R. Fruhwirth, A. Ruiz, C. Defoix, M. Witek, H. Herr, G. W. Van Apeldoorn, P. F. Honore, G. Rinaudo, R. Campion, Massimo Caccia, J. T.M. Chrin, Vladimir Nikolaenko, Itzhak Roditi, R. Pain, L. G. Tkatchev, G. Leder, A. Seitz, J. Timmermans, G. Sciolla, Y. Lemoigne, J. Werner, H. Pernegger, W. K. van Doninck, M. Margoni, M. Michelotto, C. J. Beeston, K. Kulka, Robert S. Brown, E. Cortina, D. Johnson, R. Ehret, H. Staeck, B. Nijjhar, J. Davies, A. Baroncelli, P. Jalocha, H. Saarikko, O. Podobrin, A. Wehr, V. Canale, M.A. Lopez Aguera, Francesca Romana Cavallo, P. Niss, S. Tzamarias, Eugene P. Gross, A. Chan, B. Dalmagne, E. Rosso, H. Klein, T. S. Spassoff, L. Ventura, M.P. Clara, A. De Min, I. Siccama, T. Tabarelli, M. Dris, U. Kruener-Marquis, W. Ruckstuhl, W.T. Meyer, Mitchell Wayne, I. Hietanen, Laurent Chevalier, M. Houlden, M. Mazzucato, F. Hahn, H. Mueller, G. Sajot, V. Chorowicz, P.H. Kramer, E. Lieb, K. Osterberg, F. Parodi, J. J. Gomez Y Cadenas, F. Richard, R. Sekulin, J. Hrubec, G. Wormser, L. Tortora, G. A. Chelkov, D. Bertrand, K. Huet, Patrick Jarry, P. Beltran, K. Doroba, K. Korcyl, P. N. Bogolubov, Christine Kourkoumelis, C. Lambropoulos, Ugo Amaldi, Ariella Cattai, J. Salt, W. De Boer, E. Zevgolatakos, P. E. S. Nilsen, W. J. Murray, C. Matteuzzi, Milos Lokajicek, T.E. Pettersen, A. Maio, M. Los, M. Hahn, M. van der Heijden, K.A.J. Forbes, C. Stanescu, C.O. Higgins, P. Morettini, F. Ledroit, F. Fulda-Quenzer, B. Golob, J. Cuevas Maestro, R. Strub, A. Petrolini, N. J. Kjaer, V. Kostioukhine, R. Moeller, J. Krolikowski, T. Moa, R. Holmes, Pierre Juillot, B. Koene, S. Almehed, S. Gumenyuk, M. Karlsson, O. Ullaland, Leif J. Jönsson, E.C. Katsoufis, Alberto Benvenuti, M. Pegoraro, G. Sette, P.S.L. Booth, M. Regler, S. Marti, G. Matthiae, E.N. Gazis, K.-H. Becks, R. Contri, P. Yepes, A. Maltezos, A. Firestone, E. Spiriti, P. Frenkiel, S. Simonetti, G. Polok, G. Cosme, S. J. Alvsvaag, E. Agasi, Tiziano Camporesi, G. Damgaard, Richard Brenner, F. J. Harris, Fares Djama, H. Briand, G.J. Barker, George Kalkanis, P. B. Renton, S. Squarcia, N. G. Redaelli, R. Lindner, Carlos Lacasta, G. Vegni, D. Fassouliotis, William Trischuk, A. Markou, J. G. Loken, H. Foeth, G. Maehlum, M. L. Turluer, E. Vallazza, D. Liko, N. Demaria, G. Hamel de Monchenault, T. Ekelof, N. Brummer, B. Franek, Tiziano Rovelli, D. Reid, D. C. Fries, Paula Eerola, S. Stapnes, J. Straver, R. J. Apsimon, P. Privitera, K. Kurvinen, M. Verlato, F. Waldner, S. Braibant, V. Chabaud, Javier Sánchez, D. J. Holthuizen, S. Ueberschaer, M. Weierstall, H.B. Crawley, D. Zavrtanik, R. Mc Nay, C. Walck, Marta Calvi, R. Barate, G. E. Kalmus, W. Venus, Guenakh Mitselmakher, J. J. Hernandez, P. O. Hulth, C. Ronnqvist, Z. Hajduk, W. Hao, O. Barring, S. Haider, A. P. Ostankov, F. Couchot, P. Delpierre, F. Cao, A. Tilquin, P. Grosse-Wiesmann, A. De Angelis, G. Gopal, E. Fokitis, A. Zalewska, Geoffrey Smith, P. Collins, P. Herquet, M. Gorski, P. Checchia, A. G. Olshevski, M. Dam, E. Daubie, G. Crosetti, P. Poropat, Chariclia Petridou, Andromachi Tsirou, P. Vincent, Daniel Bloch, O. Pingot, G. Lenzen, Mario Sannino, B. Bouquet, D. Souza-Santos, I. Kronkvist, P. Ronchese, P. Roudeau, J. Maillard, S. Rossi, V. G. Timofeev, J. Chauveau, F. Bianchi, Andre Augustinus, J.N. Jackson, Ahmimed Ouraou, V.M. Golovatyuk, F. Barao, Y. Sacquin, G. Myatt, Luc Pape, V. Gracco, G. Borisov, R. Orava, M. Berggren, M. J. Bates, E. Higon, R. Seufert, R. Gokieli, S. Bosworth, Bruno Schulze, F. Scuri, Daniel Treille, S. D. Hodgson, T. Buran, A. M. Wetherell, A.L. Read, A. M. Zaitsev, Alexander Vodopyanov, E. G. Anassontzis, J. P. Engel, P. Bambade, M. V. Castillo Gimenez, Wolfgang Adam, L. Lanceri, Stéphane Plaszczynski, M.R. Monge, J. Dolbeau, G. Voulgaris, Laurent Mirabito, L. Di Ciaccio, A. Lipniacka, C. De Clercq, E.I. Rosenberg, R. Zuberi, U. Rossi, E. Karvelas, B. King, Paolo Giacomelli, B. Stugu, F. Stichelbaut, Pavlos Ioannou, A. Passeri, Yu. Belokopytov, M. Zito, Carmen García, Klaus Moenig, I. Mikulec, I. Roncagliolo, Juan Fuster, R. Sosnowski, U. Haedinger, J. Lindgren, L. Carroll, J. M. Levy, G. Zumerle, E.N. Tsyganov, Marco Paganoni, Jose Luis Contreras, P. Branchini, M. Feindt, P. Negri, H. Schneider, Göran Jarlskog, D. Radojicic, Jan Ridky, J. Strauss, L.-O. Eek, B. Grossetete, W. D. Apel, Th D. Papadopoulou, R. Lauhakangas, Ph. Charpentier, H. Wahlen, G. Zhang, M. Sessa, M. S. Bilenky, W. Bartl, M. Donszelmann, A. Koch-Mehrin, P. Weilhammer, P. Billoir, T. Lesiak, Peter M. Allen, M. Pimenta, B. A. Khomenko, N. De Groot, A. Stocchi, Francesco Navarria, J. Zúñiga, Fernand Grard, D. Crennell, T. Hofmokl, W. Kucewicz, M. Vollmer, D. Gamba, J. J. Lozano, Chiara Meroni, Jan Buytaert, D. Benedic, Peter Kluit, A. Klovning, H. De Boeck, I.A. Tyapkin, Y. Arnoud, U. Mjoernmark, J. Garcia, F. Dupont, Andrey Korytov, N. N. Khovanski, P. Lutz, J. A. Valls Ferrer, J.-M. Brunet, J. P. Laugier, J. Bjarne, B. Tome, P. Antilogus, Demetrios Loukas, G. Valenti, F. Pierre, Vincent Hedberg, G. Ekspong, P. N. Ratoff, M. Begalli, J.W. Lamsa, S. O. Holmgren, C. Bosio, H. J. Hilke, K.D. Brand, M. Pernicka, L. S. Vertogradov, L. Chaussard, L. Vitale, A. Algeri, R. Zukanovich Funchal, J.H. Wickens, J. Drees, O. Toker, E. Torassa, R. C. Shellard, Ariel Goobar, G. E. Theodosiou, J. H. Koehne, A. M. Segar, P. S. Iversen, T.L. Hessing, S. C. Blyth, G. Meola, G. Wilkinson, F. Kapusta, V. Ruhlmann-Kleider, P. Beilliere, M.D.M. De Fez Laso, V.A. Uvarov, G. Tristram, J. Marco, A. Andreazza, Paul Baillon, P. Kokkinias, P. David, J. Lemonne, M. Battaglia, R. Keranen, Francisco Matorras, N. Yamdagni, Y. Dufour, U. Trevisan, P. D. Dauncey, Sandor Czellar, H. Rahmani, P. Zalewski, P. Szymanski, K. Hamacher, A.J. Camacho Rozas, A. Grant, V. Vrba, Hans Dijkstra, K. Furnival, M. Bonesini, T. Bolognese, W. Bonivento, V. Bocci, E. K. Johansson, M. Baubillier, J.-L. Fousset, T.J.V. Bowcock, D. Z. Toet, P. Siegrist, L. Cerrito, L. Bugge, A. Lopez-Fernandez, F. Fontanelli, F. Verbeure, Tuure Tuuva, Clara Troncon, C. De La Vaissiere, J. Pennanen, N. I. Zimin, A. G. Frodesen, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Physics, Coupling constant, Particle physics, Argus, Nuclear and High Energy Physics, Muon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, Decay length, LEPTONS, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Física nuclear, Combined result, 010306 general physics, computer, Particle Physics - Experiment, Fermi Gamma-ray Space Telescope, Lepton, computer.programming_language
Abstract: The tau lepton lifetime is measured using four different methods with the DELPHI detector. Three measurements using one prong decays are combined, accounting for correlations, resulting in tau(tau) = 298 +/- 7 (stat.) +/- 4 (syst.) fs while the decay length distribution of three prong decays gives tau(tau) = 298 +/- 13 (stat.) +/- 5 (syst.) fs. The combined result is tau(tau) = 298 +/- 7 fs. The ratio of the Fermi coupling constant from tau decay relative to that from muon decay is found to be 0.985 +/- 0.013, compatible with lepton universality.
Published: 1993
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45. The DELPHI microvertex detector

Author: Itzhak Roditi, A. Campion, B.D. Hyams, J. Bizell, R. J. Apsimon, M. Karlsson, J. Chauveau, W. Kucewicz, B. Dalmagne, C. Troncon, H. P. Borner, M. Baubillier, N. G. Redaelli, Roland Horisberger, Paul Seller, A. Amery, R. McNulty, J. Straver, Chiara Meroni, F. Couchot, Y. Dufour, P. D. Dauncey, R. Orava, M. Mazzucato, M. Tyndel, M. Battaglia, H. Saarikko, L. Denton, E. Sundell, R. Boulter, J.F. Genat, N. Bingefors, W. Dulinski, A. Zalewska, Tim Adye, G. Maehlum, P. Weilhammer, M. Schaeffer, V. Chabaud, A. Andreazza, Tuure Tuuva, P. Biffi, M. Turala, William Trischuk, M. Pegoraro, F. Fulda, V. Bonvicini, A. Peisert, K. Ratz, W. Da Silva, C. Ronnqvist, J. Lindgren, P. Bambade, P.S.L. Booth, G. Vegni, F. Rossel, Paula Eerola, G. E. Kalmus, D. Husson, R. A. Brenner, Massimo Caccia, Renato Turchetta, Pawel Jalocha, J. P. Saarikko, Hans Dijkstra, L. Hubbeling, Abdenour Lounis, Eugene P. Gross, K. Osterberg, J.A. Lidbury, A. Stocchi, P. Kapusta, P. Bruckman, and N. A. Smith
Subjects: Physics, Nuclear and High Energy Physics, Detector, STRIPS, Particle detector, law.invention, Semiconductor detector, Nuclear physics, law, Measuring instrument, Impact parameter, Detectors and Experimental Techniques, Instrumentation, Zero suppression, Beam (structure)
Abstract: The DELPHI Microvertex detector, which has been in operation since the start of the 1990 LEP run, consists of three layers of silicon microstrip detectors at average radii of 6.3, 9.0 and 11.0 cm. The 73728 readout strips, oriented along the beam, have a total active area of 0.42 m2. The strip pitch is 25 μm and every other strip is read out by low power charge amplifiers, giving a signal to noise ratio of 15:1 for minimum ionizing particles. On-line zero suppression results in an average data size of 4 kbyte for Z0 events. After a mechanical survey and an alignment with tracks, the impact parameter uncertainty as determined from hadronic Z0 decays is well described by ( 69 p t ) 2 + 24 2 μm , with pt in GeV/c. For the 45 GeV/c tracks from Z0 → μ− decays we find an uncertainty of 21 μm for the impact parameter, which corresponds to a precision of 8 μm per point. The stability during the run is monitored using light spots and capacitive probes. An analysis of tracks through sector overlaps provides an additional check of the stability. The same analysis also results in a value of 6 μm for the intrinsic precision of the detector.
Published: 1992

46. Determination of 55-155-155-1in second order QCD from hadronic Z decays

Author: N. Vishnevsky, P. Negri, C. Gaspar, Rupert Leitner, J. Dolbeau, Z. Hajduk, W. Kucewicz, H. Foeth, D. Husson, Tiziano Camporesi, G. Cosme, P. Bambade, P.S.L. Booth, R. J. Apsimon, A. Letessier-Selvon, P. Herquet, Maciej Górski, I. A. Tyapkin, C. Caso, N. G. Redaelli, W. D. Apel, J. Garcia, R. Contri, T. Tabarelli, M. Bonapart, T. P. A. Åkesson, P. Grosse-Wiesmann, A. De Angelis, M. Davenport, A. Hakansson, P. Collins, D. Delikaris, K. Rybicki, Marco Bozzo, G. Hamel de Monchenault, Josef Strauss, S. Braibant, W. Venus, I. Kronkvist, G. Meola, E. Lieb, J. Werner, A. Campion, N. Magnussen, M. Fernandez Alonso, D. Y. Bardin, Dietrich Liko, Daniel Bloch, P. Frenkiel, P. Ioannou, G. E. Theodosiou, M. P. Clara, Louis Lyons, A. Markou, D. Fassouliotis, Ahmimed Ouraou, V.M. Golovatyuk, G. Kalmus, P. Kluit, W. Dulinski, F. Waldner, M. Houlden, P. V. Chliapnikov, Manolis Dris, George Kalkanis, S. C. Blyth, V. Obraztsov, A. Baroncelli, P. B. Renton, S. Dagoret, F. Ledroit, Jacques Lemonne, E. N. Tsyganov, R. Sekulin, N.I. Zimin, M.D.M. De Fez Laso, R. McNulty, B. De Lotto, S. Volponi, Itzhak Roditi, A. Chan, D. C. Fries, E. Lillethun, M. Karlsson, O. Ullaland, C. O. Higgins, J. J. Hernandez, P. Van Dam, Daniel Treille, D. J. Holthuizen, M. T. Trainor, Stefaan Tavernier, A. M. Wetherell, W.S.C. Williams, Guido Barbiellini, E. C. Katsoufis, Mario Sannino, G. Maehlum, I. Roncagliolo, Renato Turchetta, J. E. Hooper, K. Furnival, Y. Sacquin, Marta Calvi, Demetrios Loukas, U. Trevisan, M. Kopf, M. A. Lopez Aguera, Geoffrey Smith, J. Guy, G. Stavropoulos, M. Pimenta, C. De La Vaissiere, V. Chorowicz, R. Lauhakangas, V. Kostiukhin, Tim Adye, J. Lindgren, Chiara Meroni, G. W. Van Apeldoorn, P. Weilhammer, Evangelos Gazis, A. G. Olshevski, G. Grosdidier, L. Chaussard, Wolfgang Adam, M. Crozon, B. Franek, R. Zitoun, Jon Christopher Wikne, J. P. Gerber, Francesca Romana Cavallo, Mitchell Wayne, L. Ventura, M. Sessa, Edoardo Castelli, G. D. Alekseev, E. Torassa, Alessandra Romero, Marc Winter, Paul Baillon, O. Toker, A. Tilquin, S-O. Holmgren, H. Furstenau, R. Lindner, F. Fulda-Quenzer, Y. Lemoigne, V. V. Lapin, M. Szeptycka, R. Orava, A. Ruiz, J. Kesteman, Barry King, F. Pierre, M. Dracos, G. Matthiae, E. Spiriti, P. N. Ratoff, Yu. Belokopytov, M. Donszelmann, B. Bouquet, P. Abreu, J. G. Loken, M. A E Schyns, Tiziano Rovelli, E. Graziani, C. De Clercq, J. A. Valls Ferrer, W. J. Murray, G. Wormser, Pieter David, A. Zalewska, T. S. Spassoff, J. M. Brunet, C. Troncon, P. Allen, P. F. Honore, L. Jonsson, M. Weierstall, M. Pernicka, M. Feindt, R. Frühwirth, W. T. Meyer, J. Timmermans, M. S. Bilenky, Maria Elena Pol, K. Hultqvist, A. N. Sissakian, W. Trischuk, M. De Beer, G. Ekspong, A. Lipniacka, P. N. Bogolubov, M. Mazzucato, I. Hietanen, Eilam Gross, Ariella Cattai, U. Gasparini, Ariel Goobar, Klaus Hamacher, J. H. Koehne, B. Nijjhar, Jesus Marco, R. Strub, S. Katsanevas, W. Krupinski, K. A. J. Forbes, S. D. Hodgson, R. Llosa, G. Sette, C. Ronnqvist, A. Elliot Peisert, G. Zhang, M. Bonesini, E. Dahl-Jensen, A. P. Ostankov, P. Szymanski, M. Koratzinos, Giovanni Darbo, T. Buran, A. Passeri, M. Berggren, U. Kruner-Marquis, T. A. Filippas, M. Schaeffer, L. Bugge, A. Augustinus, T. Bolognese, H. De Boeck, S. Simonetti, B. Jean-Marie, M. Begalli, C. J. Beeston, K. H. Becks, C. Kourkoumelis, E. Vallazza, Th. D. Papadopoulou, Guenakh Mitselmakher, R. A. Brenner, M. Pegoraro, J. Maillard, W. Bonivento, P. Yepes, B. Koene, N. Brummer, P. Vaz, Luc Pape, S. Haider, B. Boštjančič, V. Perevozchikov, C. Vander Velde, S. J. Alvsvaag, Stefano Ragazzi, G. Smadja, Olga Botner, Krzysztof Korcyl, Lucio Cerrito, Gueorgui Chelkov, A. Lounis, V. Vrba, F. Couchot, H. Mueller, M. Battaglia, C. Lambropoulos, Ugo Amaldi, P. Jalocha, Carmen García, H. P. Borner, S. Squarcia, R. Holmes, H. Saarikko, José Salt, P. Billoir, A. Pullia, W. De Boer, E. Zevgolatakos, F. Cao, J. Bjarne, Paolo Morettini, W. Mitaroff, Stefan Schael, D. Johnson, M. Tyndel, P. Zukanovich Funchal, Y. Dufour, S. Überchär, P. Antilogus, T. Henkes, G. Crosetti, Evgueni Vlasov, P. D. Dauncey, Sandor Czellar, T. Kreuzberger, P. Beilliere, M. Turala, M. Paganoni, W. Klempt, F. Hahn, G. Galeazzi, G. Polok, A. Koch-Mehrin, A. Tomaradze, Cristian Stanescu, P. Branchini, Mogens Dam, H. Herr, W. K. Van Dominck, Martino Margoni, F. Stichelbaut, M. Regler, D. Zavrtanik, F. Adami, E. Fokitis, E. I. Rosenberg, S. Vlassopoulos, H. Schneider, A. Fenyuk, R. Keranen, R. Sosnowski, O. Barring, Francisco Matorras, N. Yamdagni, F. Naraghi, V. G. Timofeev, Piotr Zalewski, L. Mathis, B. Dalmagne, Laurent Chevalier, V.A. Uvarov, Milos Lokajicek, V. Ruhlmann, V. Ronjin, F. Simonetto, Fernand Grard, H. Palka, G. Skjevling, D. Crennell, F. Mandl, J. W. Lamsa, B. W. Heck, A. J. Camacho Rozas, Antonio Ferrer, F. Barao, I. Lippi, L. Tortora, F. J. Harris, D. Z. Toet, J. H. Wickens, B. Muryn, Jose Luis Contreras, F. Kapusta, P. Siegrist, E. Higon, R. Seufert, Carlos Lacasta, F. Scuri, H. Briand, D. Wormald, K. Oesterberg, L. Vitale, L. S. Vertogradov, L. Lanceri, M. McCubbin, D. Radojicic, Jan Ridky, T. Hofmokl, Marek Szczekowski, P. Borgeaud, A. Tsirou, Guy Wilkinson, B. A. Khomenko, Paolo Ronchese, N. J. Kjaer, D. Isenhower, E. Rosso, H. Klein, N. De Groot, P. Kokkinias, P. Lutz, T. B. Skaali, A. Stocchi, D. Bertrand, V. Bocci, Francesco Navarria, C. Defoix, J. Zúñiga, G. Tristram, Paula Eerola, P. Folegati, R. McKay, W. Ruckstuhl, M. R. Monge, R. Barate, P. O. Hulth, E. K. Johansson, A. Firestone, J. Sanchez, Goeran Jarlskog, T. Maron, P. Delpierre, H. Wahlen, E. Daubie, Ph. Charpentier, P. Beltran, P. H. Kramer, M. Vollmer, U. Rossi, Paolo Giacomelli, S. Delorme, K. Woschnagg, L.J. Carroll, B. Grossetete, Allan Hallgren, Giovanni Valenti, G. Myatt, M. Richardson, A. Perrotta, H. J. Hilke, Tord Ekelof, H. Staeck, G. Gopal, M. Chapkin, Jose M. Benlloch, A. Grant, V. Nikolaenko, G. Borisov, A. Klovning, U. Mjoernmark, C. Bosio, E. J. Sanchez, P. Roudeau, M. Baubillier, Hans Dijkstra, A. De Min, P. Privitera, Joao Varela, M. J. Bates, F. Carena, M. Jonker, B. Loerstad, G. Leder, F. Bianchi, D. Gamba, J. J. Gomez Y Cadenas, G. Voulgaris, V. Canale, Andrey Korytov, M. Los, V. Lepeltier, A. S. Vodopyanov, O. Doll, R. Pain, C. Walck, Paolo Checchia, G. Vegni, Ph. Gavillet, T. Moa, L. Di Ciaccio, Jan Krolikowski, N. N. Khovanski, W. Bartl, H. Burmeister, Alexander Lincoln Read, J. P. Laugier, Claire Bourdarios, J. Cuevas Maestro, Juan Fuster, A. Maltezos, Robert S. Brown, Flavio Fontanelli, Borge Svane Nielsen, J. J. Lozano, T. Todorov, J. A M A Buytaert, A. Lopez-Fernandez, F. Verbeure, Krzysztof Doroba, C. Bricman, D. Benedic, J. Drees, M. L. Turluer, D. Reid, Tuure Tuuva, M. Michelotto, Gianni Zumerle, M. Zito, Patrick Jarry, A. Wehr, G. Rinaudo, Alexander Zaitsev, R. Moeller, J. N. Jackson, B. Åsman, Roberto Cirio, L. K. Resvanis, J. Chauveau, K. Kurvinen, B. Uberschar, J. Krstic, K. D. Brand, J. Pennanen, Massimo Caccia, P. Juillot, F. Djama, P. Poropat, L. O. Eek, R. C. Shellard, Josef Hrubec, A. M. Segar, Mikko Voutilainen, P. S. Iversen, L. G. Tkatchev, D. Vilanova, J-C. Marin, R. Gokieli, Spyros Tzamarias, O. Tchikilev, Klaus Mönig, G. Lenzen, J. E. Augustin, H. B. Crawley, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, N. Demaria, G. Damgaard, O. Pingot, V. Gracco, W. Da Silva, F. Richard, C. Matteuzzi, M. Hahn, S. Almehed, S. Marti, G. Sajot, and A. G. Frodesen
Subjects: Quantum chromodynamics, Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, High Energy Physics::Phenomenology, 01 natural sciences, Hadronization, Renormalization, 0103 physical sciences, High Energy Physics::Experiment, Perturbation theory (quantum mechanics), 010306 general physics, Parton shower, Engineering (miscellaneous), Event (particle physics)
Abstract: Distributions of event shape variables obtained from 120600 hadronic Z decays measured with the DELPHI detector are compared to the predictions of QCD based event generators. Values of the strong coupling constant αs are derived as a function of the renormalization scale from a quantitative analysis of eight hadronic distributions. The final result, αs(MZ), is based on second order perturbation theory and uses two hadronization corrections, one computed with a parton shower model and the other with a QCD matrix element model. © 1992 Springer-Verlag.
Published: 1992

47. Search for scalar leptoquarks from Z$^0$ decays

Author: J. Marco, G. E. Theodosiou, H. De Boeck, S. Volponi, G. V. Mitselmakher, W. Venus, F. Pierre, I. Lippi, E. Lillethun, A. S. Vodopyanov, D. Z. Toet, U. Mjoernmark, N. Demaria, D. Y. Bardin, Maria Elena Pol, S. C. Blyth, T. Buran, T. Moa, R. Dzhelyadin, Jose Luis Contreras, F. Grard, L. G. Tkatchev, J. M. Benlloch, Marc Winter, D. Gamba, L. O. Eek, R. C. Shellard, H. Mueller, G. A. Chelkov, N. Vishenevsky, U. Nau-Korzen, Paul Baillon, C. Matteuzzi, U. Trevisan, G. Lenzen, Torsten Paul Ake Åkesson, E. Spiriti, M. Feindt, A. M. Segar, S. Ueberschaer, G. Kalmus, A. Markou, U. Kruener-Marquis, G. Maehlum, A. Augustinus, M. L. Turluer, C. O. Higgins, P. Bambade, G. Wormser, Mario Sannino, P.S.L. Booth, P. N. Ratoff, B. Bouquet, G. Kalkanis, M.A. Lopez Aguera, Francesca Romana Cavallo, S. Tavernier, M. Pimenta, M. S. Bilenky, G. Matthiae, B. De Lotto, M. J. Bates, P. B. Renton, M. Voutilainen, A. Lopez-Fernandez, D. Radojicic, F. Naraghi, B. Franek, G. Damgaard, G. Crosetti, A. Hakansson, A. Tomaradze, D. Vilonava, N. G. Redaelli, A. Ruiz, J. Hrubec, Göran Jarlskog, A. Baroncelli, M. Gorski, C. Bosio, H. J. Hilke, J. Garcia, A. V. Korytov, D. C. Fries, M. Pernicka, C. De Clercq, M. Koptf, Tord Ekelof, Clara Troncon, R. Holmes, I. Herbst, V. Nikolaenko, R. Pain, William Trischuk, N. Smirnov, B. Grossetete, G. Barbiellini, M. Zito, Itzhak Roditi, K. Doroba, M. De Beer, P. Antilogus, I. Kronkvist, W. Bartl, W. J. Murray, V. Perevozchikov, J. G. Loken, Borge Svane Nielsen, E. C. Katsoufis, P. Beilliere, M. H. Gros, R. Oraya, L. Lanceri, A. Zaitsev, P. Morettini, Jan Buytaert, S. Simonetti, C. Lambropoulos, Ugo Amaldi, A. Ouraou, W.S.C. Williams, W. D. Apel, R. Mc Kay, M. Calvi, J. Pyyhtia, H. B. Crawley, A. Zalewsky, G. Grosdidier, S. Ragazzi, P. Lutz, P. Negri, E. Higon, J. Ridky, E. Vallazza, D. Zavrtanik, W. De Boer, E. Zevgolatakos, L. Bugge, D. Benedic, Tiziano Rovelli, J-C. Marin, Winfried A Mitaroff, E. N. Tsyganov, C. De La Vaissiere, G. Stavropoulos, A. De Min, M. Bonapart, I. Roncagliolo, M. Baubillier, P. Jalocha, G. Sajot, R. Moeller, F. Fontanelli, S. Katsanevas, T. B. Skaali, V. Graco, R. Barate, P. Folegati, A. G. Frodesen, Andrea Perrotta, R. Keranen, R. Sekulin, M. A E Schyns, A. Elliot Peisert, B. Koene, B. Loerstad, G. W. van Apeldoorn, K. Rybicki, H. Staeck, T. Kreuzberger, V. M. Golovatyuk, Philippe Charpentier, J. Krstic, K. D. Brand, B. Åsman, O. Barring, P. F. Honore, P. Abreu, E. N. Gazias, J. H. Wickens, W. Bonievento, J. W. Lamsa, W. T. Meyer, C. Kourkoumelis, J. N. Jackson, M. Mazzucato, H. Burmeister, C. Stanescu, M. Crozon, P. D. Dauncey, F. Stichelbaut, Francesco Navarria, J. J. Y. Cadenas, M. R. Monge, F. Simonetto, T. A. Filippas, F. Couchot, I. A. Tyapkin, G. Meola, F. Carena, R. Lauhakangas, E. Castelli, R. Llosa, M. Bozzo, H. Palka, Juan Fuster, N. De Groot, J. Bjarne, B. Jean-Marie, J. Guy, M. Dris, R. A. Benner, A. Letessier-Selvon, M. Donszelmann, M. Szczekowski, R. Zitoun, Robert S. Brown, E. I. Rosenberg, S. Dagoret, M. P. Clara, M. Davenport, N. Brummer, E. K. Johansson, G. Zhang, O. Pingot, A. Kloving, M. Michelotto, W. Klempt, P. Van Dam, R. Mc Nulty, P. Vaz, P. Ioannou, A. Passeri, E. Vlasov, Louis Lyons, G. Rinaudo, N. Yamdagni, D. Johnson, G. Leder, M. Turala, C. J. Beeston, P. Borgeaud, J. Lemonne, B. Boštjančič, D. Liko, K. Korcyl, Tiziano Camporesi, D. Crennell, C. Walck, G. Cosme, P. Billoir, W. Kucewicz, F. Matorras, D. Isenhower, Y. Lemoigne, M. Fernandez Alonso, P. Allen, F. Ledroit, F. Kapusta, H. Furstenau, A. L. Nead, M. Koratzinos, Renato Turchetta, M. Tyndel, J. Lindgren, M. Jonker, Luc Pape, E. Lieb, A. M. Wetherell, A. Lounis, P. S. Iversen, L. Di Ciaccio, T. Papadopoulou, G. Gopal, C. Ronnqvist, D. Husson, P. Szymanski, J. M. Brunet, F. Cao, M. Szeptycka, L. S. Vertogradov, G. Myatt, H. P. Borner, Stefan Schael, W. Krupinski, M. Battaglia, R. Fruhwirth, T. Hofmokl, B. W. Heck, Y. Belokopytov, M. Los, G. Galeazzi, L. Cerrito, D. Fassouliotis, A. Ostankov, J. Krolikowski, S. Squarcia, Jamal Eddine Derkaoui, T. Henkes, Barry King, A. Campin, I. Hietanen, R. Suefert, L. Tortora, L. K. Resvanis, Demetrios Loukas, Matteo Pegoraro, Patrick Jarry, A. Firestone, Ariella Cattai, G. Vegni, K. W. Glitza, G. Polok, A.J. Camacho Rozas, Y. Dufour, B. Ueberschaer, J. P. Gerber, Eugene P. Gross, A. Tilquin, Martino Margoni, D. Bertrand, M. Schaeffer, S. J. Alvsvaag, Paolo Ronchese, J. Wikne, N. J. Kjaer, E. Anassontzis, G. R. Wilkinsi, V. Lepeltier, P. Herquet, Paolo Checchia, P. Kokkinias, C. Caso, F. Walder, J. J. Lozano, P. H. Koehne, Ph. Gavillet, H. Wahlen, A. Pullia, N. N. Khovanski, B. Dalmagne, Laurent Chevalier, O. Ullaland, J. A. Valls Ferrer, V. Vrba, E. Rosso, H. Klein, B. Nijjhar, H. Herr, A. Ferrer, L. Ventura, L. Jonssan, Ugo Gasparini, V. Chorowicz, S. Haider, P. Poropat, G. R. Smidth, P. Siegrist, E. Dahl-Jensen, P. Frenkiel, S. Braibant, Paula Eerola, K. Hultqvist, C. Bricman, V. Ruhlmann, Y. Obraztsov, P. Delpierre, V. A. Uvarov, V. Canale, Milos Lokajicek, H. Forsbach, A. Romero, R. J. Apsimon, S. Vlassopoulos, F. Mandl, L.J. Carroll, J. Cuevas Maestro, Meinhard Regler, G. Darbo, G. Sette, G. D. Alekseev, S. Tzamarias, M. Sessa, Tim Adye, J. Strauss, J. Maillard, P. Yepes, F. J. Harris, P. David, M. D. M. de Fez Laso, J. Salt, A. N. Sissakian, K. Kurvinen, J. Zuniga, P. Privitera, M. Berggren, F. Fulda-Quenzer, M. T. Trainor, A. Lipniacka, T. Todorov, A. G. Olshevski, S. O. Holmgren, U. Rossi, C. Vander Velde, Carlos Lacasta, M. Mc Cubbin, P. Giamocelli, E. Fokotis, E. Daubie, Javier Sánchez, P. Weilhammer, S. Delorme, G. Garbo, K. Kurnival, A. Chan, K. Woschnagg, G. Skjevling, V. G. Timofeev, F. Adami, M. Dracos, P. O. Hulth, J. E. Hooper, P. Zalewski, K. A. J. Forbes, S. D. Hodgson, T. Tabarelli, J. Kesteman, Z. Hajduk, T. Bolognese, K. Hamacher, Allan Hallgren, Giovanni Valenti, J. J. Hernandez, M. Chapkin, A. Grant, L. Mathias, Daniel Treille, R. Contri, M. V. Castillo Gimenez, Hans Dijkstra, S. Marti, E. Menichetti, Gösta Ekspong, Olga Botner, R. Cirio, K. H. Beckes, V. Bocci, G. Voulgaris, Carmen García, Massimo Caccia, H. Foeth, T. S. Spassoff, R. Zukanovich Funchal, R. Lucock, J. Varela, P. Juillot, T. Tuuva, F. Djama, J. Drees, P. Grosse-Wiesmann, A. De Angelis, P. Collins, D. Delikaris, Daniel Bloch, W. Adam, Y. Sacquin, Mogens Dam, E. Sanchez, L. Vibert, P. Branchini, M. Vollmer, H. Schneider, G. Smadja, D. Holthuizen, J. Dolbeau, F. Bianchi, J. Werner, P. Roudeau, C. Meroni, V. Kostiukhin, F. Verbeure, R. Sosnowski, R. Gokieli, J. P. Laugier, F. Richard, M. Hahn, S. Czellar, S. Almehed, F. Hahn, H. Saarikko, J. P. Engel, B. A. Khomenko, W. Dulinski, Klaus Moenig, M. A. Houlden, J. E. Augustin, V. Lapin, M. Bonesini, D. Wormald, P. Chliapnikov, G. Tristram, W. K. van Doninck, P. Astier, C. Defoix, A. Goobar, W. Ruckstuhl, P. Beltran, M. Begalli, N. I. Zimin, M. Richardson, Achille Stocchi, M. Boratav, E. Graziani, M. Wayne, G. Hamel De Monchenault, D. Reid, Gianni Zumerle, Andromachi Tsirou, J. Timmermans, P. N. Bogolubov, F. Barao, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Abreu, P., Adam, W., Canale, Vincenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: Quark, Library, Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, Digitisation, Archive, 01 natural sciences, JET FRAGMENTATION, PHYSICS, Nuclear physics, HADRONIC DECAYS, E+E, BOSON, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Leptoquark, 010306 general physics, Physics, Foucault, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Scalar (physics), Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: We have searched for pair produced scalar leptoquarks each decaying to a quark and a charged lepton in a sample of 116 000 hadronic Z0 events produced at LEP. No candidate was detected and cross section and branching ratio limits are set for the above process at 95% CL. Mass limits are found to be about 42 GeV/c2 depending only slightly on the models used and a coupling times branching ratio exclusion line is drawn for a scalar leptoquark with a free coupling. We have also probed the mass region above 45 GeV/c2 for a singly produced scalar leptoquark and set limits on the cross section and the coupling lambda(2)/4-pi up to 60 GeV.
Published: 1992
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48. SEARCH FOR EXCITED CHARGED LEPTONS IN Z0 DECAYS

Author: Th. D. Papadopoulou, Guenakh Mitselmakher, Maria Elena Pol, Patrick Jarry, S. Katsanevas, G. Rinaudo, J. Salt, D. Y. Bardin, E. K. Johansson, L. Vibert, Cristian Stanescu, P. Branchini, H. Schneider, T. A. Filippas, A. Firestone, M. De Beer, M. Regler, B.D. Hyams, M. Vollmer, U. Rossi, M. Bonesini, Paolo Giacomelli, E. I. Rosenberg, M. Michelotto, W. Kucewicz, G. Matthiae, Y. Sacquin, S. Delorme, K. Kurvinen, M. Zito, H. Mueller, A. Klovning, Javier Sánchez, L. S. Vertogradov, P. Poropat, A. Lopez-Fernandez, U. Mjoernmark, C. Bosio, A. Pullia, E. Menichetti, G. W. Van Apeldoorn, Stefano Ragazzi, B. De Lotto, G. Crosetti, Evgueni Vlasov, Pierre Astier, B. Korzen, S. Marti, L. Ventura, H. Furstenau, Tuure Tuuva, W.H. Range, F. Cao, R. Moeller, B. Grossetete, Allan Hallgren, Giovanni Valenti, W. Bonivento, G. Galeazzi, A. Ferrer, K. Moenig, H. Herr, L. G. Tkatchev, Roberto Cirio, L. K. Resvanis, M. Kopf, Dietrich Liko, P. Privitera, Martino Margoni, E. Fokitis, Andrey Korytov, T. Hofmokl, Marek Szczekowski, G. D. Alekseev, Hans Muller, V. Vrba, C. Vander Velde, Tiziano Camporesi, J. Dolbeau, P. Bambade, Guido Barbiellini, J. Guy, Tim Adye, P.S.L. Booth, P. N. Ratoff, R. Zitoun, M. Mc Cubbin, K. Hultqvist, M. Bonapart, G. Cosme, Georgios Stavropoulos, E. Rosso, H. Klein, Jan Krolikowski, Tord Ekelof, D. Vilanova, N. N. Khovanski, W. Bartl, H. Staeck, Massimo Caccia, J. A. Valls Ferrer, M. Jonker, Jon Christopher Wikne, F. Alted, G. A. Chelkov, Vladimir Nikolaenko, Itzhak Roditi, M. Richardson, F. Fulda-Quenzer, P. Abreu, Charles Bricman, G. Borisov, M. Baubillier, Achille Stocchi, Louis Lyons, P. N. Bogolubov, Christine Kourkoumelis, Daniel Treille, B. Koene, E. Dahl-Jensen, D. J. Holthuizen, K. D. Brand, N. G. Redaelli, J. P. Laugier, B. Loerstad, P. Juillot, H. Burmeister, N. I. Zimin, M. J. Bates, E. Graziani, C. Lambropoulos, Ugo Amaldi, J. M. Brunet, W. De Boer, A. M. Zaitsev, Alexander Vodopyanov, F. Djama, P. Borgeaud, U. Kruener-Marquis, K. Furnival, F. Bianchi, Marco Bozzo, Paolo Morettini, J. G. Loken, P. Beilliere, D. Husson, U. Gasparini, E. Zevgolatakos, P. Frenkiel, Robert S. Brown, Toralf Bernhard Skaali, A. Passeri, P. Herquet, R. Contri, U. Nau-Korzen, Mikael Berggren, M. Los, Paolo Ronchese, V. Ruhlmann, A. De Min, D. Gamba, G. Voulgaris, S. D. Hodgson, Demetrios Loukas, T. Buran, R. Sekulin, Peter M. Allen, V. Lepeltier, M. Pimenta, Joao Varela, S-O. Holmgren, N. Crosland, F. Waldner, J. Lindgren, J. J. Hernandez, C. J. Beeston, I. A. Tyapkin, J. Cuevas Maestro, T. S. Spassoff, Paolo Checchia, G. E. Theodosiou, S. C. Blyth, J. J. Gomez Y Cadenas, Manolis Dris, P. Vaz, N. J. Kjaer, Wolfgang Adam, G. Maehlum, P. Roudeau, Ph. Gavillet, T. Moa, B. A. Khomenko, N. De Groot, S. Ueberschaer, Nikita Smirnov, C. Walck, F. Verbeure, F. Kapusta, L. Bugge, A. J. Camacho Rozas, I. Lippi, D. Z. Toet, Matteo Pegoraro, Francesco Navarria, C. Defoix, Edoardo Castelli, F. Pierre, A. Lounis, T. Todorov, E. Lillethun, A. Maltezos, D. Isenhower, Klaus Hamacher, J. Zúñiga, S. Biagi, R. Pain, O. Barring, A. Baroncelli, S. Dagoret, M. L. Turluer, G. Wilkinson, A. Pinsent, M.D.M. De Fez Laso, D. Reid, G. Hamel de Monchenault, H. P. Borner, Stefaan Tavernier, Andrea Perrotta, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, E.N. Tsyganov, J. H. Wickens, R. Lauhakangas, P. Van Dam, Josef Strauss, T. Kreuzberger, W. Van Doninck, Natale Demaria, Jose Luis Contreras, I. Herbst, G. Sette, A. Elliot Peisert, Olga Botner, Krzysztof Korcyl, G. Ekspong, M. Sessa, Yu. Belokopytov, S. Squarcia, R. Holmes, H. Saarikko, P. Negri, S. Gumenyuk, Gianni Zumerle, Renato Turchetta, T. Tabarelli, R. A. Brenner, S. Maltezos, Giovanni Darbo, A. M. Segar, Flavio Fontanelli, C. De La Vaissiere, E. Lieb, W. Venus, J. Velasco, J.H. Bibby, A. G. Olshevski, Juan Fuster, George Kalkanis, P. B. Renton, Mario Sannino, M. Donszelmann, M. A. Lopez Aguera, R. Mc Nulty, Carmen García, H. De Boeck, B. Jean-Marie, M. Tyndel, R. Lucock, S. Simonetti, M. Begalli, H. Foeth, D. C. Fries, Göran Jarlskog, S. J. Alvsvaag, Andromachi Tsirou, Pierre Billoir, G. Tristram, D. Fassouliotis, Ariella Cattai, Andre Augustinus, R. Gokieli, J. Maillard, P. S. Iversen, E. C. Katsoufis, M. Turala, A. Tilquin, A. Letessier-Selvon, William Trischuk, A. Markou, Marta Calvi, B. Ueberschaer, P. O. Hulth, Paula Eerola, L. Mathis, Vincenzo Canale, Geoffrey Smith, V. Perevozchikov, J. P. Gerber, O. Ullaland, Tiziano Rovelli, R. Dzhelyadin, Pawel Jalocha, Barry King, D. Bertrand, E. Spiriti, P. Delpierre, G. Kantardjian, Leif J. Jönsson, J. Drees, D. Radojicic, R. Frühwirth, U. Trevisan, R. Orava, Fernand Grard, W. D. Apel, P. Folegati, P. Yepes, E. Daubie, A. De Angelis, D. Delikaris, N. van Eijndhoven, J. Werner, Jose M. Benlloch, A. Grant, B. Bouquet, K. W. Glitza, G. Myatt, W. Ruckstuhl, J. Timmermans, G. E. Kalmus, A. Lipniacka, Hans Dijkstra, H. Forsbach, Mogens Dam, Piotr Zalewski, J.M. Gago, B. Franek, Evangelos Gazis, Francesca Romana Cavallo, Borge Svane Nielsen, P. Beltran, J. J. Lozano, M. H. Gros, Daniel Bloch, Jan Ridky, Maria Roberta Monge, H. Palka, G. Skjevling, Ahmimed Ouraou, V.M. Golovatyuk, K. Woschnagg, B. Nijjhar, Mitchell Wayne, C. Ronnqvist, G. Zhang, A. P. Ostankov, V. V. Lapin, V.A. Uvarov, Krzysztof Doroba, Chiara Meroni, Jan Buytaert, C. De Clercq, G. Gopal, A. Zalewska, D. Benedic, J. W. Lamsa, W. T. Meyer, W. J. Murray, M. P. Collins, P. Lutz, M. Dracos, Peter Kluit, Paul Baillon, F. Barao, F. Simonetto, J. N. Jackson, P. Siegrist, E. J. Sanchez, J-C. Marin, P. Kokkinias, Alexander Lincoln Read, M. Szeptycka, Jacques Lemonne, V. Kostukhin, M. Pernicka, I. Hietanen, E. Higon, Spyros Tzamarias, G. Wormser, Jesus Marco, G. Lenzen, M. Fernandez Alonso, G. Leder, Pieter David, Luc Pape, J. Pyythia, B. Åsman, R. Seufert, R. Strub, J. E. Campagne, M. Koratzinos, V. Obraztsov, F. Scuri, I. Roncagliolo, W. Krupinski, M. Schaeffer, M. Davenport, H. J. Hilke, A. M. Wetherell, D. Crennell, F. Mandl, G. Smadja, L. Lanceri, Jorge-Armando Benitez Garcia, B. W. Heck, V. Falaleev, S. Braibant, M. T. Trainor, T. Bolognese, Y. Dufour, P. D. Dauncey, Sandor Czellar, G. Polok, M. S. Bilenky, L.J. Carroll, P. Weilhammer, M. Voutilainen, G. Grosdidier, M. Crozon, Alessandra Romero, A. Ruiz, J. Kesteman, P. F. Honore, W. A. Mitaroff, A. N. Sissakian, R. Llosa, Claudia J. Stubenrauch, F. Richard, C. Matteuzzi, M. Hahn, B. Dalmagne, Laurent Chevalier, S. Almehed, F. Hahn, Milos Lokajicek, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, G. Damgaard, L. Tortora, F. J. Harris, O. Pingot, J. E. Hooper, Carlos Lacasta, V. Gracco, Krzysztof A. Rybicki, D. Wormald, Pavlos Ioannou, M. A. Houlden, R. Sosnowski, F. Naraghi, V. G. Timofeev, J. E. Augustin, S. Haider, C. Caso, M. Boratav, H. B. Crawley, F. Couchot, J. Bjarne, P. Antilogus, W. Klempt, F. Stichelbaut, R. Mc Kay, F. Adami, R. Keranen, Philippe Charpentier, Francisco Matorras, N. Yamdagni, A. Campion, S. Volponi, R. Zukanovich Funchal, Marc Winter, C. Troncon, H. Wahlen, Ariel Goobar, J. H. Koehne, K. H. Becks, E. Vallazza, G. Vegni, N. Brummer, D. Johnson, J. Derkaoui, W.S.C. Williams, Lucio Cerrito, F. Ledroit, V. Chorowicz, M. Mazzucato, P. Szymanski, A. G. Frodesen, Torsten Paul Ake Åkesson, Z. Hajduk, Maciej Górski, A. Hakansson, W. Dulinski, P. V. Chliapnikov, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Subjects: Particle physics, Photon, Physics and Astronomy (miscellaneous), Electron–positron annihilation, MASS, 01 natural sciences, Nuclear physics, MUONS, LIMITS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, G-2, LEP, SIMULATION, ELECTRONS, Pair production, Excited state, Physique des particules élémentaires, Mass spectrum, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: Using a data sample of 115000 hadronic Z0 decays, a search was performed for the production of excited charged leptons decaying into an ordinary lepton and one photon. Pair production of excited leptons of mass below 45 GeV/c2 is excluded. From an analysis of the lepton-photon mass spectra this experiment is also able to exclude single production of these particles for masses that reach up to 85 GeV/c2, if the compositeness scale is below 1 TeV. © 1992 Springer-Verlag, 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1992

49. Measurement of the average lifetime ofB hadrons

Author: A. Campion, S. Volponi, G. Skievling, E. K. Johansson, Jose M. Benlloch, A. Grant, R. Zukanovich Funchal, V. Cracco, H. Foeth, Marc Winter, Evangelos Gazis, C. Troncon, Ariel Goobar, Hans Dijkstra, J. H. Koehne, P. Privitera, G. Wormser, Pieter David, K. H. Becks, E. Vallazza, M. Dracos, W. Trischuk, B. Ueberschaer, Edoardo Castelli, Goeran Jarlskog, F. Pierre, W. Krupinski, O. Doll, L. Bugge, Francesca Romana Cavallo, Mitchell Wayne, J. A M A Buytaert, A. Lopez-Fernandez, Tord Ekelof, V. V. Lapin, F. Stichelbaut, M. Regler, D. Zavrtanik, F. Adami, A. G. Olshevski, R. Keranen, Francisco Matorras, K. Woschnagg, N. Brummer, G. Zumerli, A. De Angelis, P. Collins, D. Delikaris, C. De Clercq, P. Poropat, Lucio Cerrito, F. Couchot, J. Bjarne, P. Antilogus, H. J. Hilke, F. Carena, B. Koene, Tuure Tuuva, D. Husson, W. Klempt, F. Hahn, M. Jonker, J. A. Valls Ferrer, W. J. Murray, G. Ekspong, J. Pyyhtia, A. Pullia, H. Furstenau, D. Johnson, H. Staeck, E. J. Sanchez, I. A. Tyapkin, A. Firestone, S. Haider, P. Roudeau, J. Werner, Daniel Bloch, M. Los, L.J. Carroll, T. Henkes, G. Crosetti, Evgueni Vlasov, Paolo Morettini, Giovanni Darbo, S. Simonetti, P. Beilliere, A. Chan, V. Lepeltier, A. S. Vodopyanov, M. Paganoni, L. O. Eek, R. C. Shellard, Josef Hrubec, C. O. Higgins, D. Y. Bardin, J. Sanchez, Ph. Charpentier, Paolo Checchia, F. Kapusta, K. D. Brand, G. Vegni, Ph. Gavillet, T. Moa, Ahmimed Ouraou, V.M. Golovatyuk, M. Begalli, G. Sette, A. Elliot Peisert, C. Kourkoumelis, D. J. Holthuizen, P. Kluit, H. Herr, W.S.C. Williams, G. Stavropoulos, A. Zalewska, A. M. Segar, V. Chorowicz, B. Loerstad, Mikko Voutilainen, M. Vollmer, Mario Sannino, U. Rossi, Paolo Giacomelli, W. T. Meyer, M. A. Lopez Aguera, K. Furnival, Y. Sacquin, V. Canale, O. Barring, A. Fenyuk, A. Baroncelli, P. Abreu, P. Borgeaud, J. G. Loken, M. De Beer, V. Ruhlmann, S. Dagoret, P. S. Iversen, Y. Dufour, P. Van Dam, Sandor Czellar, Dietrich Liko, P. Grosse-Wiesmann, W. K. Van Doninck, F. Richard, S. Delorme, M. Bonesini, M. Turala, Flavio Fontanelli, Piotr Zalewski, H. De Boeck, B. Jean-Marie, I. Lippi, M. Bonapart, T. Hofmokl, Marek Szczekowski, G. Kalmus, M. Pegoraro, J. Maillard, H. Burmeister, T. S. Spassoff, K. A. J. Forbes, Renato Turchetta, S. D. Hodgson, C. De La Vaissiere, A. J. Camacho Rozas, Antonio Ferrer, G. Hamel de Monchenault, D. Z. Toet, P. Siegrist, L. G. Tkatchev, Eilam Gross, Robert S. Brown, J. Krollkowski, M. Mazzucato, R. Sekulin, G. Polok, Josef Strauss, T. Bolognese, S. Braibant, W. Venus, Wolfgang Adam, M. Schaeffer, C. Matteuzzi, J. H. Wickens, Jose Luis Contreras, Ariella Cattai, U. Gasparini, E. Rosso, Itzhak Roditi, M. Hahn, A. Tilquin, S. Almehed, J. J. Hernandez, B. Boštjančič, P. Szymanski, Barry King, E. Spiriti, M. Chliapnikov, D. Vilanova, G. Maehlum, B. Bouquet, B. Grossetete, Allan Hallgren, Louis Lyons, Giovanni Valenti, G. E. Theodosiou, W. Bonivento, B. De Lotto, Maria Elena Pol, I. Kronkvist, S. Katsanevas, V. Perevozchikov, A. Klovning, Yu. Belokopytov, L. Vitale, L. S. Vertogradov, D. Radojicic, U. Mjoernmark, C. Bosio, R. Frühwirth, Daniel Treille, J. Krstic, J. Timmermans, M. J. Bates, G. Sajot, M. McCubbin, A. G. Frodesen, C. J. Beeston, A. Lipniacka, J-C. Marin, R. Gokieli, Guy Wilkinson, R. Lucock, U. Kruener-Marquis, V. Vrba, A. Tsirou, T. B. Skaali, S. C. Blyth, T. A. Filippas, M.D.M. De Fez Laso, S-O. Holmgren, Jan Ridky, P. Lutz, Tiziano Camporesi, G. Leder, G. Cosme, D. Gamba, Olga Botner, J. E. Augustin, Torsten Paul Ake Åkesson, G. Voulgaris, D. Isenhower, Spyros Tzamarias, Gueorgui Chelkov, Krzysztof Korcyl, Demetrios Loukas, Paolo Ronchese, N. J. Kjaer, P. Yepes, Patrick Jarry, G. Rinaudo, J. Lindgren, Rupert Leitner, F. Simonetto, N. Magnussen, W. Kucewicz, N. G. Redaelli, L. Mathis, C. Walck, R. Sosnowski, Marco Bozzo, Tiziano Rovelli, Fernand Grard, Z. Hajduk, S. Squarcia, Maciej Górski, Carmen García, Andrey Korytov, Nikita Smirnov, R. Holmes, H. Saarikko, F. Naraghi, T. Tabarelli, Chiara Meroni, I. Herbst, G. Lenzen, E. Lieb, M. Davenport, V. Bocci, A. Hakansson, G. Tristram, H. Mueller, D. Crennell, P. Frenkiel, P. Ioannou, F. Mandl, P. D. Dayncey, V. G. Timofeev, F. Waldner, R. McNulty, N.I. Zimin, J. N. Jackson, N. Yamdagni, H. Forsbach, Paul Baillon, M. Szeptycka, C. Ronnqvist, N. N. Khovanski, W. Bartl, Alexander Lincoln Read, Juan Fuster, D. Fassouliotis, M. Boratav, Paula Eerola, F. Ledroit, P. Billoir, Jacques Lemonne, W. Dulinski, R. Barate, G. Zhang, A. P. Ostankov, B. W. Heck, H. B. Crawley, C. Gaspar, S. Marti, K. Rybicki, M. T. Trainor, J. P. Laugier, G. Gopa, B. Åsman, V. Kostukhin, Peter M. Allen, S. Vlassopoulos, O. Ullaland, H. Palka, J. Dolbeau, E. G. Anassontzis, B. A. Khomenko, J. W. Lamsa, P. Bambade, Luc Pape, K. Kurvinen, M. Kopf, Stefaan Tavernier, J. P. Engel, M. V. Castillo Gimenez, N. De Groot, P.S.L. Booth, M. Pernicka, M. Feindt, A. Stocchi, Francesco Navarria, C. Defoix, I. Hietanen, R. A. Brenner, J. Zúñiga, U. Trevisan, S. J. Alvsvaag, F. Barao, Jesus Marco, R. Strub, N. Demaria, G. Damgaard, P. Weilhammer, E. Higon, C. Caso, R. Seufert, R. Zitoun, O. Pingot, M. Koratzinos, B. Franek, F. Scuri, Jon Christopher Wikne, F. Fulda-Quenzer, K. Doraba, M. P. Clara, M. Pimenta, L. Lanceri, Borge Svane Nielsen, J. J. Lozano, M. H. Gros, P. Negri, E. Graziani, J. M. Brunet, A. Koch-Mehrin, G. Grosdidier, Klaus Moenig, D. Benedic, A. Letessier-Selvon, M. Crozon, W. D. Apel, L. Diciaccio, Alessandra Romero, A. Ruiz, J. Kesteman, M. A E Schyns, P. F. Honore, M. S. Bilenky, Mogens Dam, R. Llosa, B. Dalmagne, Laurent Chevalier, Milos Lokajicek, L. Tortora, P. Kokkinas, F. J. Harris, J. E. Hooper, Carlos Lacasta, D. Wormald, A. Markou, George Kalkanis, P. B. Renton, E. N. Tsyganov, D. C. Fries, E. C. Katsoufis, Marta Calvi, Geoffrey Smith, G. W. Van Apeldoorn, R. J. Apsimon, Pierre Astier, L. Ventura, Y. Lemoigne, G. Matthiae, V. A. Urarov, L. Jonsson, P. N. Bogolubov, J. P. Gerber, R. Orava, P. N. Ratoff, K. W. Glitza, E. Dahl-Jensen, Klaus Hamacher, B. Nijjhar, A. Passeri, M. Bataglia, M. Berggren, A. Augustinus, C. Vander Velde, P. Vaz, C. Lambropoulos, Ugo Amaldi, G. Smadja, A. Lounis, P. Jalocha, W. De Boer, E. Zevgolatakos, H. P. Borner, Stefan Schael, W. Mitaroff, M. Tyndel, T. Kreuzberger, D. Bertrand, J. Garcia, P. Folegati, R. McKay, M. Fernandez Alonso, V. Obraztsov, W. Ruckstuhl, I. Roncagliolo, Th. D. Papadopoulou, Guenakh Mitselmakher, H. Wahlen, José Salt, L. Vibert, P. Beltran, Cristian Stanescu, P. Branchini, H. Schneider, R. Lauhakangas, M. Sessa, A. N. Sissakian, M. Donszelmann, M. Richardson, A. Perrotta, G. Borisov, M. Baubillier, P. Herquet, M. R. Monge, R. Contri, E. Menichetti, Stefano Ragazzi, F. Bianchi, U. Nau-Korzen, P. O. Hulth, P. Delpierre, M. Matveev, T. Burran, F. Cao, E. Daubie, M. Houlden, Manolis Dris, G. Myatt, E. Lillethun, Alexander Zaitsev, R. Moeller, G. Galeazzi, Roberto Cirio, L. K. Resvanis, Massimo Caccia, J. Cuevas Maestro, P. Juillot, F. Djama, Martino Margoni, T. Todorov, V. Nikolaenko, A. De Min, E. Fokitis, E. I. Rosenberg, Joao Varela, J. J. Gomez Y Cadenas, R. Pain, S. Ueberschaer, A. Maltezos, F. Verbeure, M. L. Turluer, C. Bricman, J. Drees, M. Michelotto, M. Zito, D. Reid, A. M. Wetherell, Guido Barbiellini, J. Guy, Tim Adye, G. D. Alekseev, E. Torassa, K. Hultqvist, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, IHEF (IoP, FNWI), Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Bechtluft, J., Becker, R., Becker, U., Behner, F., Behrens, J., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Costantini, S., Cotorobai, F., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gele, D., Gentile, S., Gheordanescu, N., Giagu, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Klockner, R., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Rodriguez, F. J., Roe, B. P., Rohner, M., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. C. C., Ting, S. M., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Warner, C., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zaitsev, N., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., B. C. C., Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Vertex method, Physics and Astronomy (miscellaneous), Electron–positron annihilation, Hadron, Elementary particle, E+E ANNIHILATION, MONTE-CARLO, DECAYS, FRAGMENTATION, QUARKS, 01 natural sciences, JET FRAGMENTATION, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Partículas Elementales, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Physics, scientific edition, QUARK, large electron positron collider, lcsh:QC1-999, L3 detector, Physique des particules élémentaires, BOTTOM HADRONS, MESON, Impact parameter, Particle Physics - Experiment, Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, Nuclear physics, Open Access, Humanities, Open Archives, 0103 physical sciences, 010306 general physics, Engineering (miscellaneous), Ciencias Exactas, Muon, E+E-PHYSICS, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Física, Dipole, Z(0) DECAYS, Large Electron–Positron Collider, High Energy Physics::Experiment, Center of mass, lcsh:Physics, Bar (unit)
Abstract: The average lifetime of B hadrons produced in hadronic Z0 decays has been measured with the DELPHI detector at LEP. The measurement is based on the analysis of the impact parameter distributions of high pt muons and hadrons. The resulting mean B lifetimes are τB=(1.30±0.10±0.08)ps and τB=(1.27±0.04±0.12)ps respectively, giving a combined value of τB=(1.28±0.10)ps. The hadronic sample was also used to measure the partial Z0 width {Mathematical expression} and gave a value of 0.222-0.031+0.033±0.017. © 1992 Springer-Verlag., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1992
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50. Study of final state photons in hadronic Z$^0$ decay and limits on new phenomena

Author: Peter M. Allen, Itzhak Roditi, G. W. Van Apeldoorn, M. Pimenta, B. A. Khomenko, N. De Groot, Francesco Navarria, S-O. Holmgren, D. Husson, Klaus Hamacher, A. Baroncelli, C. Defoix, J. Zúñiga, Pierre Astier, S. Dagoret, L. Ventura, R. A. Brenner, P. Van Dam, Y. Lemoigne, S. J. Alvsvaag, P. Herquet, I. A. Tyapkin, R. Contri, Renato Turchetta, A. Koch-Mehrin, C. De La Vaissiere, U. Nau-Korzen, Mogens Dam, Tiziano Camporesi, A. Tilquin, T. Henkes, B. De Lotto, G. Crosetti, Evgueni Vlasov, G. Cosme, M. Battaglia, T. Bolognese, Pawel Jalocha, Barry King, E. Spiriti, Y. Dufour, P. D. Dauncey, Sandor Czellar, L. S. Vertogradov, N. G. Redaelli, Marco Bozzo, G. E. Theodosiou, G. Polok, S. C. Blyth, R. Frühwirth, G. Wilkinson, J. Timmermans, M.D.M. De Fez Laso, P. N. Bogolubov, Manolis Dris, P. Frenkiel, A. Lipniacka, P. Roudeau, Tord Ekelof, H. Staeck, P. Poropat, L. Mathis, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, F. Waldner, F. Carena, G. Wormser, Pieter David, Christine Kourkoumelis, E. Dahl-Jensen, M. Richardson, W. Krupinski, C. Walck, Borge Svane Nielsen, H. J. Hilke, B. Dalmagne, Stefaan Tavernier, Laurent Chevalier, A. Passeri, E. Lillethun, J. J. Lozano, M. H. Gros, Krzysztof Doroba, Chiara Meroni, Jan Buytaert, A. G. Olshevski, A. Lopez-Fernandez, C. Gaspar, L. O. Eek, H. Herr, L. G. Tkatchev, R. C. Shellard, N. Vishnevsky, M. Jonker, Francesca Romana Cavallo, Mitchell Wayne, B. Loerstad, L. Di Ciaccio, Josef Hrubec, D. Benedic, V. V. Lapin, Th. D. Papadopoulou, B. Koene, Guenakh Mitselmakher, A. M. Segar, C. De Clercq, G. Borisov, V. Ronjin, P. Vaz, J. E. Augustin, M. Baubillier, Achille Stocchi, F. Simonetto, Peter Kluit, Tuure Tuuva, M. Pernicka, Milos Lokajicek, I. Hietanen, W. J. Murray, Rupert Leitner, P. Weilhmmer, W. Kucewicz, G. Leder, G. Matthiae, P. S. Iversen, Mikael Berggren, M. De Beer, H. Burmeister, Tiziano Rovelli, Paolo Morettini, Maria Roberta Monge, V. Lepeltier, A. Zalewska, M. Bonesini, A. Lounis, M. Fernandez Alonso, Edoardo Castelli, F. Pierre, L. Tortora, F. J. Harris, A. Klovning, U. Mjoernmark, C. Bosio, J. G. Loken, W. T. Meyer, P. Beilliere, Robert S. Brown, Jesus Marco, G. Lenzen, R. Strub, P. Abreu, V. Obraztsov, H. P. Borner, Stefan Schael, M. Koratzinos, L. Vibert, A. M. Zaitsev, Alexander Vodopyanov, Y. Sacquin, B. Åsman, Cristian Stanescu, P. Branchini, S. Marti, Jacques Lemonne, Paolo Checchia, F. Bianchi, Ph. Gavillet, T. Moa, H. Schneider, D. Crennell, F. Mandl, S. Haider, P. Siegrist, Andrea Perrotta, G. Hamel de Monchenault, G. Smadja, G. Sette, Josef Strauss, G. Ekspong, A. Elliot Peisert, M. Schaeffer, J. E. Hooper, Dietrich Liko, P. Privitera, Carlos Lacasta, Giovanni Darbo, C. Caso, U. Gasparini, I. Roncagliolo, S. Braibant, R. Lauhakangas, Krzysztof A. Rybicki, D. Wormald, R. Pain, O. Barring, W. Bonivento, W. Venus, Matteo Pegoraro, J-C. Marin, Flavio Fontanelli, Guido Barbiellini, B. W. Heck, M. Sessa, P. N. Ratoff, Andrey Korytov, S. Simonetti, M. Begalli, H. Forsbach, C. Ronnqvist, G. Zhang, V. Vrba, A. P. Ostankov, H. De Boeck, B. Jean-Marie, M. Tyndel, J. Krstic, K. D. Brand, C. Vander Velde, N. I. Zimin, Natale Demaria, G. A. Chelkov, V. Ruhlmann, G. Meola, Spyros Tzamarias, Daniel Treille, M. Boratav, I. Kronkvist, D. J. Holthuizen, C. J. Beeston, Pierre Billoir, M. Donszelmann, I. Lippi, J. Guy, Tim Adye, Patrick Jarry, Jan Krolikowski, N. N. Khovanski, W. Bartl, G. Rinaudo, J. Salt, D. Isenhower, J. Maillard, E.N. Tsyganov, J. H. Wickens, Marco Paganoni, Jose Luis Contreras, V. Kostukhin, M. Bonapart, Jorge-Armando Benitez Garcia, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, George Kalkanis, P. B. Renton, M. Davenport, L. Bugge, A. J. Camacho Rozas, N. Magnussen, D. C. Fries, J. Lindgren, J. Cuevas Maestro, K. Furnival, H. B. Crawley, R. Gokieli, J. Drees, Luc Pape, R. Sosnowski, D. Z. Toet, S. Squarcia, R. Holmes, H. Saarikko, M. Turala, Evangelos Gazis, E. Menichetti, F. Naraghi, Stefano Ragazzi, M. Chapkin, Jose M. Benlloch, A. Grant, B. Boštjančič, V. Perevozchikov, F. Cao, J. A. Valls Ferrer, J. P. Laugier, T. Tabarelli, P. Borgeaud, U. Kruener-Marquis, L. Vitale, Nikita Smirnov, Louis Lyons, Paolo Ronchese, M. Feindt, T. Kreuzberger, W. Van Doninck, E. C. Katsoufis, Marta Calvi, P. Negri, Wolfgang Adam, V. G. Timofeev, T. Todorov, E. Lieb, D. Radojicic, Hans Dijkstra, W. A. Mitaroff, Jan Ridky, Piotr Zalewski, M. Dracos, M. Michelotto, D. Fassouliotis, Ariella Cattai, E. I. Rosenberg, Yu. Belokopytov, N. J. Kjaer, P. Lutz, R. McNulty, M. T. Trainor, Vincenzo Canale, Geoffrey Smith, J. P. Gerber, F. Richard, C. Matteuzzi, F. Ledroit, S. Vlassopoulos, O. Ullaland, Leif J. Jönsson, M. Voutilainen, G. Grosdidier, R. Lucock, M. Crozon, K. Kurvinen, V.A. Uvarov, Alessandra Romero, M. Hahn, Demetrios Loukas, Javier Sánchez, R. Sekulin, G. Galeazzi, A. Ferrer, V. Bocci, S. Almehed, E. K. Johansson, K. W. Glitza, M. L. Turluer, A. Ruiz, J. Kesteman, D. Reid, U. Trevisan, M. A E Schyns, P. F. Honore, A. N. Sissakian, M. McCubbin, J. N. Jackson, R. Llosa, G. Tristram, M. S. Bilenky, Paula Eerola, J. J. Hernandez, F. Hahn, G. Maehlum, T. S. Spasoff, L.J. Carroll, B. Nijjhar, P. Kokkinias, B. Franek, R. Barate, E. G. Anassontzis, G. E. Kalmus, Martino Margoni, E. Fokitis, G. D. Alekseev, E. Torassa, P. O. Hulth, A. Firestone, J. P. Engel, William Trischuk, A. Markou, M. V. Castillo Gimenez, Gianni Zumerle, G. Damgaard, O. Pingot, O. Doll, P. Delpierre, E. Daubie, M. Vollmer, U. Rossi, K. Hultqvist, Paolo Giacomelli, M. J. Bates, Georgios Stavropoulos, V. Gracco, Toralf Bernhard Skaali, D. Gamba, G. Voulgaris, S. Delorme, M. Zito, Pavlos Ioannou, F. Verbeure, F. Kapusta, Andromachi Tsirou, G. Myatt, I. Herbst, Juan Fuster, A. Pullia, Andre Augustinus, H. Furstenau, Klaus Moenig, Eugene P. Gross, M. A. Houlden, T. Hofmokl, Marek Szczekowski, B. Grossetete, Allan Hallgren, E. Rosso, H. Klein, Giovanni Valenti, R. Moeller, Roberto Cirio, M. Los, L. K. Resvanis, D. Bertrand, H. Palka, D. Vilanova, G. Skjevling, J. W. Lamsa, P. Yepes, Massimo Caccia, Vladimir Nikolaenko, F. Barao, K. Woschnagg, P. Juillot, G. Gopal, F. Djama, E. J. Sanchez, A. De Min, E. Higon, R. Seufert, P. Folegati, Joao Varela, R. McKay, G. Sajot, W. Ruckstuhl, J. J. Gomez Y Cadenas, S. Ueberschaer, F. Scuri, A. Maltezos, A. M. Wetherell, L. Lanceri, P. Beltran, A. G. Frodesen, Torsten Paul Ake Åkesson, Z. Hajduk, Maciej Górski, A. Hakansson, W. Dulinski, P. V. Chliapnikov, G. Vegni, N. Brummer, J. Pyyhtia, D. Johnson, A. Chan, W.S.C. Williams, Lucio Cerrito, V. Chorowicz, M. Mazzucato, P. Szymanski, H. Foeth, R. J. Apsimon, B. Ueberschaer, P. Grosse-Wiesmann, A. De Angelis, P. Collins, D. Delikaris, J. Werner, Daniel Bloch, Ahmimed Ouraou, V.M. Golovatyuk, K. A. J. Forbes, S. D. Hodgson, T. Buran, Olga Botner, Krzysztof Korcyl, Carmen García, M. Kopf, R. Zitoun, Jon Christopher Wikne, F. Fulda-Quenzer, E. Graziani, J. M. Brunet, A. Campion, S. Volponi, R. Zukanovich Funchal, Marc Winter, C. Troncon, H. Wahlen, Ariel Goobar, J. H. Koehne, K. H. Becks, E. Vallazza, F. Stichelbaut, D. Zavrtanik, F. Adami, R. Keranen, Philippe Charpentier, Francisco Matorras, N. Yamdagni, C. O. Higgins, F. Couchot, J. Bjarne, P. Antilogus, Mario Sannino, M. A. Lopez Aguera, W. Klempt, R. Orava, Fernand Grard, B. Bouquet, Maria Elena Pol, S. Katsanevas, D. Y. Bardin, T. A. Filippas, M. Regler, H. Mueller, J. Dolbeau, P. Bambade, P.S.L. Booth, Charles Bricman, M. P. Clara, Göran Jarlskog, A. Letessier-Selvon, W. D. Apel, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo
Subjects: Quark, Particle physics, COLLISIONS, Physics and Astronomy (miscellaneous), LUND MONTE-CARLO, Electron–positron annihilation, Hadron, Dalitz plot, Type (model theory), 01 natural sciences, Nuclear physics, PHYSICS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PERTURBATIVE QCD, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, Coupling constant, 010308 nuclear & particles physics, Branching fraction, JET PRODUCTION-RATES, High Energy Physics::Phenomenology, RESONANCE, DENSITY PROJECTION CHAMBER, E+ E ANNIHILATION, Z-BOSON, FRAGMENTATION, Physique des particules élémentaires, Production (computer science), High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The differential cross section for final state radiation from primary quarks is obtained from a study of isolated energetic photons produced in the reaction e+e-→Z0→hadrons+γ, as measured in the DELPHI detector at the CERN LEP collider. When combined with the measurement of the total hadronic width of the Z0, the observed rate determines the electroweak coupling constants of up and down type quarks, i.e. {Mathematical expression} No evidence is seen for additional photon production from anomalous decays of the Z0 or from decays of new particles. This measurement leads to upper limits on the production cross section times branching fraction of (a) the Higgs boson in the reaction e+e-→Z0→H +γ, H→hadrons, (b) an excited quark, q*→q+γ, and (c) the contribution of an anomalous decay of the Z0 into a photon and hadrons. These limits, all at the 95% confidence level, vary from 3 to 10pb as the mass of the intermediate state (H, q* or Z*) varies from 10 GeV/c2 to 80 GeV/c2. © 1992 Springer-Verlag, 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 1992
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