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1. Electron-muon ranger: performance in the MICE muon beam

Author

D. Adams, A. Alekou, M. Apollonio, R. Asfandiyarov, G. Barber, P. Barclay, A. de Bari, R. Bayes, V. Bayliss, P. Bene, R. Bertoni, V.J. Blackmore, A. Blondel, S. Blot, M. Bogomilov, M. Bonesini, C.N. Booth, D. Bowring, S. Boyd, T.W. Bradshaw, U. Bravar, A.D. Bross, F. Cadoux, M. Capponi, T. Carlisle, G. Cecchet, C. Charnley, F. Chignoli, D. Cline, J.H. Cobb, G. Colling, N. Collomb, L. Coney, P. Cooke, M. Courthold, L.M. Cremaldi, S. Debieux, A. DeMello, A. Dick, A. Dobbs, P. Dornan, F. Drielsma, F. Filthaut, T. Fitzpatrick, P. Franchini, V. Francis, L. Fry, A. Gallagher, R. Gamet, R. Gardener, S. Gourlay, A. Grant, J.S. Graulich, J. Greis, S. Griffiths, P. Hanlet, O.M. Hansen, G.G. Hanson, T.L. Hart, T. Hartnett, T. Hayler, C. Heidt, M. Hills, P. Hodgson, C. Hunt, C. Husi, A. Iaciofano, S. Ishimoto, G. Kafka, D.M. Kaplan, Y. Karadzhov, Y.K. Kim, Y. Kuno, P. Kyberd, J.-B. Lagrange, J. Langlands, W. Lau, M. Leonova, D. Li, A. Lintern, M. Littlefield, K. Long, T. Luo, C. Macwaters, B. Martlew, J. Martyniak, F. Masciocchi, R. Mazza, S. Middleton, A. Moretti, A. Moss, A. Muir, I. Mullacrane, J.J. Nebrensky, D. Neuffer, A. Nichols, R. Nicholson, L. Nicola, E. Noah Messomo, J.C. Nugent, A. Oates, Y. Onel, D. Orestano, E. Overton, P. Owens, V. Palladino, J. Pasternak, F. Pastore, C. Pidcott, M. Popovic, R. Preece, S. Prestemon, D. Rajaram, S. Ramberger, M.A. Rayner, S. Ricciardi, T.J. Roberts, M. Robinson, C. Rogers, K. Ronald, K. Rothenfusser, P. Rubinov, P. Rucinski, H. Sakamato, D.A. Sanders, R. Sandström, E. Santos, T. Savidge, P.J. Smith, P. Snopok, F.J.P. Soler, D. Speirs, T. Stanley, G. Stokes, D.J. Summers, J. Tarrant, I. Taylor, L. Tortora, Y. Torun, R. Tsenov, C.D. Tunnell, M.A. Uchida, G. Vankova-Kirilova, S. Virostek, M. Vretenar, P. Warburton, S. Watson, C. White, C.G. Whyte, A. Wilson, H. Wisting, X. Yang, A. Young, M. Zisman, Science and Technology Facilities Council (STFC), Adams, D., Alekou, A., Apollonio, M., Asfandiyarov, R., Barber, G., Barclay, P., De Bari, A., Bayes, R., Bayliss, V., Bene, P., Bertoni, R., Blackmore, V. J., Blondel, A., Blot, S., Bogomilov, M., Bonesini, M., Booth, C. N., Bowring, D., Boyd, S., Bradshaw, T. W., Bravar, U., Bross, A. D., Cadoux, F., Capponi, M., Carlisle, T., Cecchet, G., Charnley, C., Chignoli, F., Cline, D., Cobb, J. H., Colling, G., Collomb, N., Coney, L., Cooke, P., Courthold, M., Cremaldi, L. M., Debieux, S., Demello, A., Dick, A., Dobbs, A., Dornan, P., Drielsma, F., Filthaut, F., Fitzpatrick, T., Franchini, P., Francis, V., Fry, L., Gallagher, A., Gamet, R., Gardener, R., Gourlay, S., Grant, A., Graulich, J. S., Greis, J., Griffiths, S., Hanlet, P., Hansen, O. M., Hanson, G. G., Hart, T. L., Hartnett, T., Hayler, T., Heidt, C., Hills, M., Hodgson, P., Hunt, C., Husi, C., Iaciofano, A., Ishimoto, S., Kafka, G., Kaplan, D. M., Karadzhov, Y., Kim, Y. K., Kuno, Y., Kyberd, P., Lagrange, J. -B., Langlands, J., Lau, W., Leonova, M., Li, D., Lintern, A., Littlefield, M., Long, K., Luo, T., Macwaters, C., Martlew, B., Martyniak, J., Masciocchi, F., Mazza, R., Middleton, S., Moretti, A., Moss, A., Muir, A., Mullacrane, I., Nebrensky, J. J., Neuffer, D., Nichols, A., Nicholson, R., Nicola, L., Messomo, E. N., Nugent, J. C., Oates, A., Onel, Y., Orestano, D., Overton, E., Owens, P., Palladino, V., Pasternak, J., Pastore, F., Pidcott, C., Popovic, M., Preece, R., Prestemon, S., Rajaram, D., Ramberger, S., Rayner, M. A., Ricciardi, S., Roberts, T. J., Robinson, M., Rogers, C., Ronald, K., Rothenfusser, K., Rubinov, P., Rucinski, P., Sakamato, H., Sanders, D. A., Sandstrom, R., Santos, E., Savidge, T., Smith, P. J., Snopok, P., Soler, F. J. P., Speirs, D., Stanley, T., Stokes, G., Summers, D. J., Tarrant, J., Taylor, I., Tortora, L., Torun, Y., Tsenov, R., Tunnell, C. D., Uchida, M. A., Vankova-Kirilova, G., Virostek, S., Vretenar, M., Warburton, P., Watson, S., White, C., Whyte, C. G., Wilson, A., Wisting, H., Yang, X., Young, A., Zisman, M., and Palladino, Vittorio

Subjects
Technology, Physics - Instrumentation and Detectors, Traverse, Physics::Instrumentation and Detectors, FOS: Physical sciences, Electron, Cooling channel, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Particle identification method, Particle identification methods, Calorimeters, DESIGN, Particle tracking detectors, 0103 physical sciences, Ionization cooling, Detectors and Experimental Techniques, Nuclear Experiment, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Instrumentation, Instruments & Instrumentation, QC, Mathematical Physics, Physics, Calorimeter, Range (particle radiation), Muon, Science & Technology, 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), Nuclear & Particles Physics, Particle tracking detector, Experimental High Energy Physics, Physics::Accelerator Physics, High Energy Physics::Experiment, Performance of High Energy Physics Detectors, Beam (structure)
Abstract

The Muon Ionization Cooling Experiment (MICE) will perform a detailed study of ionization cooling to evaluate the feasibility of the technique. To carry out this program, MICE requires an efficient particle-identification (PID) system to identify muons. The Electron-Muon Ranger (EMR) is a fully-active tracking-calorimeter that forms part of the PID system and tags muons that traverse the cooling channel without decaying. The detector is capable of identifying electrons with an efficiency of 98.6%, providing a purity for the MICE beam that exceeds 99.8%. The EMR also proved to be a powerful tool for the reconstruction of muon momenta in the range 100-280 MeV/$c$., 22 pages, 19 figures

Published
2015

2. Forward π± production in p–O2 and p–N2 interactions at 12 GeV/c

Author

Ioannis Papadopoulos, S.A. Bunyatov, Ghislain Grégoire, M. Apollonio, Alexey Krasnoperov, Simone Gilardoni, F. Bobisut, V. Palladino, V. Grichine, A. Cervera-Villanueva, U. Dore, P. Chimenti, Silvia Borghi, E. Radicioni, A. Guglielmi, L. Howlett, D. W. Schmitz, L. Tortora, Domizia Orestano, B. A. Popov, J. Panman, D. Kolev, Mikhail Kirsanov, G.D. Barr, J.S. Graulich, P. Gorbunov, Rob Edgecock, J. Dumarchez, S. Piperov, M. Bogomilov, A. Ivanchenko, M. Sorel, C. Wiebusch, R. Schroeter, M. C. Morone, E. Tcherniaev, A. Tonazzo, Petar Temnikov, E. Di Capua, G. Prior, C. N. Booth, A. Grossheim, Federico Ferri, N. G. Polukhina, S. Gianì, A. Artamonov, G.B. Mills, A. Blondel, A. Bagulya, R. Tsenov, L. Coney, Fr Pastore, M. G. Catanesi, Malcolm Ellis, Jordi Burguet-Castell, J. Martín-Albo, J.J. Gómez-Cadenas, U. Gastaldi, G. Vidal–Sitjes, M. Bonesini, Vladimir Ivanchenko, G. Giannini, D. Gibin, V. Tereschenko, C. Meurer, M. Mezzetto, P. Zucchelli, Ilya Tsukerman, A. Grant, A. Kayis-Topaksu, and Claus Gößling

Subjects
Physics, Range (particle radiation), Particle physics, Large Hadron Collider, Spectrometer, 010308 nuclear & particles physics, Hadron, Astronomy and Astrophysics, 7. Clean energy, 01 natural sciences, Nuclear physics, Pion, Air shower, 13. Climate action, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, HARP
Abstract

Measurements of double-differential charged pion production cross-sections in interactions of 12 GeV/c protons on O2 and N2 thin targets are presented in the kinematic range 0.5 GeV/c ⩽pπ

Published
2008

3. Gas gain uniformity tests performed on multiwire proportional chambers for the LHCb muon system

Author

A. Reis, F. Rodrigues, H.P. Lima, Thomas Schneider, Alexandre Oliveira Alves, L.M. de Andrade Filho, B. Schmidt, K. Mair, J.S. Graulich, E. Polycarpo, C. Schoch Vianna, G. Guerrer, and A.F. Barbosa

Subjects
Physics, Nuclear and High Energy Physics, Muon, Large Hadron Collider, Physics::Instrumentation and Detectors, business.industry, Radioactive source, Pulse generator, Particle detector, Quality (physics), Optics, Data acquisition, Measuring instrument, business, Instrumentation, Particle Physics - Experiment
Abstract

We present the experimental setup and the results of the gas gain uniformity tests performed as part of the quality control of the multiwire proportional chambers produced at CERN for the LHCb muon system. The test provides a relative gas gain measurement over the whole chamber sensitive area. It is based on the analysis of the pulse height spectrum obtained when the chamber is exposed to a 241 Am radioactive source. Since the measurement is normalized to the peak of a precise pulse generator, the gain uniformity can also be evaluated among different gas gaps and different chambers. In order to cope with the specific requirements related to the relatively high number of chambers and to their varying geometry, a standalone and compact data acquisition system has been developed which is programmable at the hardware level and may be applied to many other applications requiring precise time-to-digital and analog-to-digital conversion, in correlated or non-correlated mode. r 2008 Elsevier B.V. All rights reserved. PACS: 06.60.Mr; 07.05.Hd; 29.30.Kv; 29.40.Cs

Published
2008

4. Measurement of the production cross-sections of π± in p–C and π±–C interactions at 12 GeV/c

Author

M. Apollonio, M. Mezzetto, Kai Zuber, V. Tereshchenko, L. Tortora, C. N. Booth, Simone Gilardoni, A. Cervera-Villanueva, P. Chimenti, Ilya Tsukerman, A. Artamonov, M. Chizhov, R. Schroeter, Mikhail Kirsanov, P. Gorbunov, A. Kayis-Topaksu, Alexey Krasnoperov, Federico Ferri, R. Tsenov, Maurizio Bonesini, I. Kato, E. Di Capua, G. Giannini, F. Bobisut, C. Wiebusch, D. W. Schmitz, Claus Gößling, F. J. P. Soler, Ioannis Papadopoulos, J. Dumarchez, D. Kolev, J. Panman, M. G. Catanesi, M. Bogomilov, Petar Temnikov, B. A. Popov, Domizia Orestano, G.D. Barr, S.A. Bunyatov, S. Gianì, Jordi Burguet-Castell, U. Gastaldi, M. Sorel, C. Meurer, C. Pattison, S. Piperov, Silvia Borghi, Manuela Campanelli, L. Coney, G. Prior, V. Palladino, A. Grossheim, Ralph Engel, A. Tonazzo, F. Vannucci, N. G. Polukhina, L. Howlett, G. Grégoire, J.S. Graulich, G. Vidal-Sitjes, A. De Santo, E. Radicioni, A. Grant, A. Blondel, Fr Pastore, A. Bagulya, Rob Veenhof, S. Robbins, Malcolm Ellis, P. Novella, J. Martín-Albo, J.J. Gómez-Cadenas, A. Guglielmi, Rob Edgecock, G.B. Mills, E. Tcherniaev, Piero Zucchelli, Giovanni Santin, P. Gruber, V. Grichine, U. Dore, Vladimir Ivanchenko, M. C. Morone, and D. Gibin

Subjects
Physics, Range (particle radiation), Spectrometer, 010308 nuclear & particles physics, Hadron, chemistry.chemical_element, Astronomy and Astrophysics, 01 natural sciences, 7. Clean energy, 3. Good health, Nuclear physics, Air shower, Pion, chemistry, 13. Climate action, 0103 physical sciences, Nuclear interaction length, Atomic physics, 010306 general physics, Carbon, HARP
Abstract

The results of the measurements of the double-differential production cross-sections of pions, dσ/dpdΩ, in p C and π C interactions using the forward spectrometer of the HARP experiment are presented. The incident particles are 12 GeV/c protons and charged pions directed onto a carbon target with a thickness of 5% of a nuclear interaction length. For p C interactions the analysis is performed using 100,035 reconstructed secondary tracks, while the corresponding numbers of tracks for π C and π C analyses are 106,534 and 10,122, respectively. Cross-section results are presented in the kinematic range 0.5GeV/c⩽pπ

Published
2008

5. Production and quality control of MWPC for the LHCb muon system at CERN

Author

A.F. Barbosa, B. Schmidt, A. Kachtchouk, V. Souvorov, Werner Riegler, R. Dumps, L.Md.A. Filho, Thomas Schneider, J.S. Graulich, and E. Polycarpo

Subjects
Production line, Physics, Nuclear and High Energy Physics, Fabrication, Large Hadron Collider, Muon, business.industry, Nuclear engineering, Electrical engineering, Gas leak, Quality (physics), Nuclear Energy and Engineering, Soldering, Detectors and Experimental Techniques, Electrical and Electronic Engineering, business, Quality assurance
Abstract

This work describes the production and quality control of the multi-wire proportional chamber for the LHCb muon detection system. The European Laboratory of Particle Physics (CERN) is in charge of the production of 134 chambers for the inner regions of the five Muon Stations. These chambers have demanding requirements on rate capability (>100 kHz/cm2) and efficiency (>99%) in a short time window (20 ns), on overall response uniformity which has to be better than 30%, and on the aging properties. The technical design of the chambers is briefly presented, and the production line is described together with the quality assurance and quality control programs. This includes fabrication of the panels; wire winding, gluing, and soldering; gap uniformity control; pitch and wire tension measurement; gas leak tests; high-voltage training; and tests under intense radiation. An original method developed for gas gain uniformity measurements is described in detail, and the obtained results are shown

Published
2006

6. Measurement of the production cross-section of positive pions in p–Al collisions at

Author

C. N. Booth, J. Dumarchez, A. Kayis-Topaksu, Jordi Burguet-Castell, O. Klimov, Silvia Borghi, S. Simone, F. Bobisut, A. Tonazzo, G.B. Mills, D. Kustov, C. Pattison, S.A. Bunyatov, A. Krasnoperov, Domizia Orestano, V. Grichine, Malcolm Ellis, V. Ableev, N. G. Polukhina, Artem Chukanov, D. Kolev, P M Gruber, U. Dore, Claus Gößling, V. I. Koreshev, E. Radicioni, A. De Min, G.D. Barr, P. Novella, Mikhail Ivanovitch Gostkin, M. T. Muciaccia, D. Dedovitch, J.J. Gómez-Cadenas, M. Mass, E. Di Capua, S. Piperov, Petar Temnikov, A. Tornero, Marta Calvi, L. Linssen, A. Blondel, Mikhail Kirsanov, A. Guskov, A. Semak, P. Gorbunov, Craig Buttar, A. Grant, E. Tcherniaev, L. Howlett, A. Artamonov, K. Nishikawa, J.S. Graulich, F. Paleari, Fr Pastore, U. Gastaldi, Yu M. Sviridov, M. G. Catanesi, Ghislain Grégoire, R. Tsenov, Tsuyoshi Nakaya, S. Troquereau, Vladimir Ivanchenko, V. G. Zaets, V. Serdiouk, Giovanni Santin, A. De Santo, M. Apollonio, V. V. Ammosov, D. W. Schmitz, Marco Paganoni, R. Schroeter, D. Khartchenko, S. Ueda, M. Mezzetto, V. Tereshchenko, F. J. P. Soler, V. A. Gapienko, M. C. Morone, Kai Zuber, C. Wiebusch, Alessandro Menegolli, J. Panman, Federico Ferri, F. Vannucci, P. Arce, D. Gibin, P. Zucchelli, Ilya Tsukerman, L. Coney, P. Chimenti, Simone Gilardoni, Alexey Zhemchugov, J. Pasternak, M. Pasquali, Takashi Kobayashi, B. A. Popov, A. Cervera-Villanueva, A. Elagin, A. Guglielmi, Rob Edgecock, M. Bogomilov, M. Chizhov, G. Vidal-Sitjes, I. Kato, Manuela Campanelli, G. Prior, A. Grossheim, V. Palladino, S. Gianì, A. Bagulya, G. Giannini, A. Ichikawa, Rob Veenhof, Ioannis Papadopoulos, M. Bonesini, S. Robbins, M. Sorel, Marco Laveder, Paul Hodgson, K. Nikolaev, Y. Hayato, and L. Tortora

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Research council, 0103 physical sciences, Angular dependence, 010306 general physics, 01 natural sciences, Humanities, Flux ratio
Abstract

We gratefully acknowledge the help and support of the PS beam staff and of the numerous technical collaborators who contributed to the detector design, construction, commissioning and operation. In particular, we would like to thank G. Barichello, R. Broccard, K. Burin, V. Carassiti, F. Chignoli, G. Decreuse, C. Detraz, M. Dwuznik, F. Evangelisti, B. Friend, A. Iaciofano, I. Krasin, J.-C. Legrand, M. Lobello, F. Marinilli, J. Mulon, R. Nicholson, A. Pepato, P. Petev, X. Pons, I. Rusinov, M. Scandurra, E. Usenko, and R. van der Vlugt, for their support in the construction of the detector. The collaboration is indebted to M. Baldo Ceolin, P. Binko, E. Boter, M. Doucet, D. D¨ullmann, V. Ermilova, A. Pullia and A. Valassi for their contributions to the experiment. We are indebted to the K2K collaboration who made available their beam-line simulation for the calculation of the predicted far–to–near neutrino flux ratio. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucl´eaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium), Ministerio de Educacion y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium f¨ur Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow) and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support.

Published
2006

7. Automated wire tension measurement system for LHCb muon chambers

Author

A. Nedosekin, Gianni Penso, M. Dwuznik, G. Felici, A. Frenkel, E. Dané, B. Schmidt, A. Kachtchouk, J.S. Graulich, Paolo Ciambrone, V. Shubin, A. Medvedkov, V. V. Kulikov, C. Forti, Giuseppe Pirozzi, G. Martellotti, R. Dumps, and D. Pinci

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, business.industry, Oscillation, High voltage, Sense (electronics), Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Capacitance, Particle detector, Optics, Nuclear magnetic resonance, Mechanical resonance, business, Instrumentation, Strain gauge, Electronic circuit
Abstract

A wire tension meter has been developed for the multi-wire proportional chambers of the LHCb muon detector. The wire tension is deduced from its mechanical resonance frequency. In the LHCb muon chambers, the wires are 2 mm apart and electrically connected in groups of 3–32, so that the wire excitation system must be precisely positioned with respect to the wire to be tested. This wire is forced to oscillate by a periodic high voltage applied between that wire and a non-oscillating “sense wire” placed parallel and close to it. This oscillation produces a variation of the capacitance between these two wires which is measured by a high precision digital electronic circuit. At the resonance frequency this capacitance variation is maximum. The system has been systematically investigated and its parameters were optimized. In the range 0.4–1 N a good agreement is found between the mechanical tension measured by this system and by a dynamometer.

Published
2005

8. The 7.07 MeV resonance in 19Ne revisited

Author

S. Cherubini, A. C. Shotter, Joachim Görres, Pierre Leleux, A. Di Pietro, T. Davinson, Michael Wiescher, W. Galster, Freddy Binon, W. Bradfield-Smith, S. El Hajjami, R. Coszach, Jean Vanhorenbeeck, and J.S. Graulich

Subjects
Physics, Nuclear and High Energy Physics, Nuclear magnetic resonance, Resonance
Published
2001

9. Breakout from the hot CNO cycle via the18Ne(α,p)21Nareaction

Author

Alain Ninane, W. Galster, A.M. Laird, Joachim Görres, Alexander Ostrowski, Pierre Leleux, Jean Vervier, L. Michel, Javad Rahighi, Michael Wiescher, W. Bradfield-Smith, Alan Shotter, J.S. Graulich, Jerry Hinnefeld, A. DiPietro, S. Cherubini, Philip Woods, and Thomas Davinson

Subjects
Reaction rate, Physics, Nuclear and High Energy Physics, CNO cycle, medicine.anatomical_structure, Nuclear astrophysics, Gaseous helium, medicine, Center of mass, Atomic physics, Nucleus, Beam (structure)
Abstract

The reaction Ne-18(alpha, p)Na-21, of importance to nuclear astrophysics, has been studied directly using the postaccelerated radioactive Ne-18 beam available at Louvain-la-Neuve and a gaseous helium target. This: study covered the energy region from 2.04 to 3.01 MeV in the center of mass, and identified various levels in the compound nucleus Mg-22. The stellar reaction rate due to these states has been deduced. The experimental rate shows good agreement with theoretical predictions [J. Gorres, M. Wiescher, and F. K. Thielemann, Phys. Rev. C 51, 392 (1995)] above 2.5 GK. [S0556-2813(99)02906-4].

Published
1999

10. Investigation of reactions using a radioactive beam

Author

Javad Rahighi, J.S. Graulich, Jerry Hinnefeld, W. Bradfield-Smith, L. Michel, Silvio Cherubini, Philip Woods, W. Galster, Joachim Görres, Michael Wiescher, Pierre Leleux, Jean Vervier, Thomas Davinson, Alan Shotter, A. DiPietro, A.M. Laird, Alain Ninane, and Alexander Ostrowski

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Ion beam, Analytical chemistry, Resonance, chemistry.chemical_element, Alpha particle, Isotopes of sodium, Charged particle, chemistry, Physics::Accelerator Physics, Atomic physics, Nuclear Experiment, Instrumentation, Beam (structure), Helium
Abstract

Reactions such as 18 Ne(α, p) 21 Na of importance to Nuclear Astrophysics may be studied directly through the use of a radioactive beam and a gaseous helium target. A system to study such reactions has been developed and tested using the 13 N beam available at the Radioactive Ion Beam facility (RIB) at Louvain-la-Neuve. This ( α , p ) reaction was chosen as previous studies of the inverse reaction 16 O(p, α) 13 N allowed the resonance strength of a strong resonance at 8.07 MeV (Tilley et al., Nucl. Phys. A 564 (1993) 139) in the compound nucleus 17 F to be calculated and compared with that obtained through experiment. These resonance strengths showed good agreement and so validated the technique for further work.

Published
1999

11. 19Ne(p,γ)20Naand19Ne(d,n)20Nareactions and its astrophysical implications for the transition of the hot CNO cycle to therpprocess

Author

Jean Vanhorenbeeck, P. Duhamel, H. Herndl, Michel Gaelens, Freddy Binon, W. Galster, H. Oberhummer, Cs. Sükösd, Alain Ninane, J.S. Graulich, C.R. Bain, Marc Huyse, G. Vancraeynest, Robert Page, Alan Shotter, Michael Wiescher, Philip Woods, E. Liénard, Patrick Decrock, C. Michotte, P. Leleux, R. Coszach, P. Van Duppen, Th. Delbar, Jean Vervier, P. Lipnik, and Thomas Davinson

Subjects
Physics, Nuclear and High Energy Physics, education.field_of_study, CNO cycle, Proton, Population, Resonance, rp-process, Reaction rate, Nuclear physics, Photodisintegration, Born approximation, Atomic physics, education
Abstract

The population of the Na-20 resonances at 448, 661, 797, and 887 keV above the proton threshold has been studied in measurements of the Ne-19(p,gamma)Na-20 reaction with radioactive Ne-19 beams. The data have been analyzed fully in terms of resonance strengths, enabling a comparison with theoretical estimates and the extraction of upper and lower limits on the resonant part of the Ne-19(p, gamma)Na-20 astrophysical reaction rate. The total cross section of the Ne-19(d,n)Na-20 reaction has been measured from 0.6 to 1.8 MeV (c.m.). On the basis of the results of a subsequent distorted-wave Born approximation analysis the direct component of the Ne-19(p,gamma)Na-20 astrophysical reaction rate has been calculated in a potential model. The astrophysical implications of the resulting total reaction rate have been investigated: the conditions for the breakout from the hot CNO cycle into the rapid-proton capture process are determined by the preceding O-15(alpha, gamma)Ne-19 reaction and the photodisintegration of the produced Na-20 nuclei will not impede the breakout. [S0556-2813(98)05305-9].

Published
1998

12. Measurement of cross-sections for the 9Be(n,3n)7Be and 56Fe(n,p)56Mn reactions producing background lines in γ-ray astrophysics

Author

Pierre Jean, J.S. Graulich, Jean Vanhorenbeeck, P. Duhamel, Jean Pierre Meulders, G. Vedrenne, W. Galster, P. von Ballmoos, and Pol Leleux

Subjects
Physics, Nuclear reaction, Baryon, Nuclear and High Energy Physics, Hadron, Neutron, Astrophysics, Atomic physics, Nucleon, Isotopes of beryllium, Instrumentation, Charged particle, Ion
Abstract

The reactions Be-9(n,3n)Be-7 and Fe-56(n,p)Mn-56 were measured between 28 and 68 MeV and at 28 MeV, respectively. These reactions lead to the emission of gamma-rays (478, 847, 1811 keV) that may be disturbing in gamma-ray astrophysics missions. Consequences regarding the induced background in detectors are drawn. (C) 1998 Elsevier Science B.V. All rights reserved.

Published
1998

13. The 19Ne(p,γ)20Na astrophysical reaction rate determined from measurements with a radioactive beam

Author

Cs. Sükösd, Paul J. Sellin, Marc Huyse, Peter Lipnik, G. Vancraeynest, Michael Wiescher, R.D. Page, C. R. Bain, Thomas Davinson, J.S. Graulich, R. Coszach, Alain Ninane, Jean Vanhorenbeeck, P. Duhamel, P. Van Duppen, Patrick Decrock, F. Binon, Pol Leleux, Jean Vervier, Michel Gaelens, E. Lienard, I. Licot, Philip Woods, Claude Michotte, W. Galster, Alan Shotter, and Th. Delbar

Subjects
Chemical kinetics, Nuclear reaction, Reaction rate, Physics, Nuclear and High Energy Physics, CNO cycle, Isotopes of neon, Hydrogen, chemistry, Nucleosynthesis, Analytical chemistry, chemistry.chemical_element, Isotopes of sodium
Abstract

The 19Ne(p, γ)20Na as well as the 19Ne(d,n)20Na reaction have been studied in inverse kinematics using 19Ne radioactive beams. Upper and lower limits for the 19Ne(p, γ)20Na astrophysical reaction rate have been deduced, for the first time on the basis of direct experimental data. It is concluded that the transition from the hot-CNO cycle to the rp-process in explosive hydrogen burning is most likely governed by the proceeding 15O(α,γ)19Ne reaction.

Published
1997

14. New limits for the 19Ne(p,γ)20Na astrophysical reaction rate from direct measurements using radioactive beams

Author

Cs. Sükösd, Patrick Decrock, G. Vancraeynest, Jean Vanhorenbeeck, C.R. Bain, Peter Lipnik, E. Lienard, Thomas Davinson, Michel Gaelens, P. Van Duppen, Jean Vervier, Freddy Binon, J.S. Graulich, Claude Michotte, R. Coszach, Philip Woods, M. Huyse, P. Duhamel, Alain Ninane, Alan Shotter, Th. Delbar, Michael Wiescher, W. Galster, and Pierre Leleux

Subjects
Physics, Nuclear physics, Reaction rate, Nuclear and High Energy Physics, Reaction sequence, Hydrogen, chemistry, Nucleosynthesis, Radiative capture, chemistry.chemical_element, Alpha (ethology), Atomic physics
Abstract

Inexplosive stellar hydrogen burning, the hot CNO cycles and the rp-process are mainly linked by the reaction sequence O-15(alpha,gamma) Ne-19(p,gamma)Na-20. Using intense Ne-19 radioactive beams, both the Ne-19(p,gamma) and the Ne-19(d,n) reaction have been studied. Upper and lower limits for the Ne-19(p,gamma) reaction rate have been deduced, allowing to conclude that the O-15(alpha,gamma) reaction is most likely the bottleneck reaction.

Published
1996

15. The 15O(α,γ)19Ne reaction using a 18Ne radioactive beam

Author

C. Spitaleri, M. Lattuada, H. H. Wolter, Marc Loiselet, W. Galster, A. Di Pietro, Pierre Leleux, T. Davinson, Alexander Ostrowski, A. Musumarra, Jean Vervier, M. G. Pellegriti, P. Figuera, P. J. Woods, S. Cherubini, Alain Ninane, Guido Ryckewaert, Jerry Hinnefeld, J.S. Graulich, A. C. Shotter, Alison Laird, Stefan Typel, and Marialuisa Aliotta

Subjects
Physics, Reaction rate, Nuclear and High Energy Physics, CNO cycle, Plasma, Atomic physics, Nuclear Experiment, Branching (polymer chemistry), Excitation, Radioactive beam
Abstract

The 15O(α,γ)19Ne reaction is generally considered as a potential breakout reaction from the hot CNO cycle. Under nova conditions, the reaction rate is dominated by a single sub-Coulomb resonance at Ec.m.=504 keV which corresponds to a 19Ne excitation energy of ER=4.033 MeV. Results from a d(18Ne,19Ne)p experiment show that states of astrophysical interest are populated in this reaction. An upper limit for the α-branching ratio of the 4.033 MeV state was identified and branching ratios for other states in 19Ne were found to be in good agreement with stable beam based results.

Published
2001

16. Breakout from the hot-CNO cycle via the 18Ne(α, p)21Na reaction

Author

Pierre Leleux, P. J. Woods, Joachim Görres, S. Cherubini, Michael Wiescher, A. Di Pietro, T. Davinson, Alain Ninane, W. Bradfield-Smith, A. Musumarra, Alison Laird, Javad Rahighi, J.S. Graulich, D. Groombridge, Alexander Ostrowski, P. Figuera, A. C. Shotter, and Hendrik Schatz

Subjects
Physics, Nuclear and High Energy Physics, CNO cycle, Breakout, Astrophysics
Published
2001

17. Measurements of forward proton production with incident protons and charged pions on nuclear targets at the CERN Proton Synchroton

Author

Jordi Burguet-Castell, G. Giannini, L. Tortora, S.A. Bunyatov, A. Blondel, M. G. Catanesi, M. Kirsanov, E. Tcherniaev, M. Mezzetto, U. Gastaldi, Domizia Orestano, R. Schroeter, G.D. Barr, N. G. Polukhina, V. Tereschenko, E. Di Capua, A. Bagulya, V. Palladino, P. Zucchelli, Ilya Tsukerman, G.P. Skoro, A. Artamonov, A. Guglielmi, C. Meurer, L. Coney, G. Vidal-Sitjes, A. Kayis-Topaksu, L. Howlett, J.S. Graulich, S. Gianì, M. Sorel, Ghislain Grégoire, A. Cervera-Villanueva, G. Prior, R. Tsenov, Rob Edgecock, Ioannis Papadopoulos, C. Wiebusch, M. Bonesini, A. Grossheim, V. Grichine, U. Dore, A. Grant, Claus Gößling, P. Gorbunov, Silvia Borghi, E. Radicioni, Simone Gilardoni, Alexey Krasnoperov, F. Pastore, Malcolm Ellis, A. Ivanchenko, M. Bogomilov, D. W. Schmitz, P. Novella, J. Martín-Albo, D. Gibin, J.J. Gómez-Cadenas, Petar Temnikov, J. Panman, D. Kolev, C. N. Booth, S. Piperov, J. Dumarchez, F. Ferri, Vladimir Ivanchenko, M. C. Morone, B. A. Popov, A. Tonazzo, M. Apollonio, P. Chimenti, F. Bobisut, G. B. Mills, 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), APC - Neutrinos, 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 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)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), HARP, 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)-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)-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)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), UCL - SST/IRMP - Institut de recherche en mathématique et physique, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-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)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Çukurova Üniversitesi, M., Apollonio, A., Artamonov, A., Bagulya, G., Barr, A., Blondel, F., Bobisut, M., Bogomilov, M., Bonesini, C., Booth, S., Borghi, S., Bunyatov, J., Burguet Castell, M., Catanesi, A., Cervera Villanueva, P., Chimenti, L., Coney, E., Di Capua, U., Dore, J., Dumarchez, R., Edgecock, M., Elli, F., Ferri, U., Gastaldi, S., Giani, Giannini, Gianrossano, D., Gibin, S., Gilardoni, P., Gorbunov, C., Gößling, J., Gómez Cadena, A., Grant, J., Graulich, G., Grégoire, V., Grichine, A., Grossheim, A., Guglielmi, L., Howlett, A., Ivanchenko, V., Ivanchenko, A., Kayis Topaksu, M., Kirsanov, D., Kolev, A., Krasnoperov, J., Martín Albo, C., Meurer, M., Mezzetto, G., Mill, M., Morone, P., Novella, D., Orestano, V., Palladino, J., Panman, I., Papadopoulo, F., Pastore, S., Piperov, N., Polukhina, B., Popov, G., Prior, E., Radicioni, D., Schmitz, R., Schroeter, G., Skoro, M., Sorel, E., Tcherniaev, P., Temnikov, V., Tereschenko, A., Tonazzo, L., Tortora, R., Tsenov, I., Tsukerman, G., Vidal Sitje, C., Wiebusch, P., Zucchelli, Blondel, Alain, Borghi, Silvia, Morone, Maria Cristina, Prior, Gersende, Schroeter, Raphaël, Çukurova Üniversitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, Apollonio, M, Artamonov, A, Bagulya, A, Barr, G, Blondel, A, Bobisut, F, Bogomilov, M, Bonesini, M, Booth, C, Borghi, S, Bunyatov, S, Burguet Castell, J, Catanesi, Mg, Cervera Villanueva, A, Chimenti, P, Coney, L, Di Capua, E, Dore, U, Dumarchez, J, Edgecock, R, Ellis, M, Ferri, F, Gastaldi, U, Giani, S, Giannini, G, Gibin, D, Gilardoni, S, Gorbunov, P, Gossling, C, Gomez Cadenas, Jj, Grant, A, Graulich, J, Gregoire, G, Grichine, V, Grossheim, A, Guglielmi, A, Howlett, L, Ivanchenko, A, Ivanchenko, V, Kayis Topaksu, A, Kirsanov, M, Kolev, D, Krasnoperov, A, Martin Albo, J, Meurer, C, Mezzetto, M, Mills, Gb, Morone, Mc, Novella, P, Orestano, Domizia, Palladino, V, Panman, J, Papadopoulos, I, Pastore, F, Piperov, S, Polukhina, N, Popov, B, Prior, G, Radicioni, E, Schmitz, D, Schroeter, R, Skoro, G, Sorel, M, Tcherniaev, E, Temnikov, P, Tereschenko, V, Tonazzo, A, Tortora, L, Tsenov, R, Tsukerman, I, Vidal Sitjes, G, Wiebusch, C, and Zucchelli, P.

Subjects
Nuclear and High Energy Physics, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Physics::Instrumentation and Detectors, proton, nuclear targets, charged pions, FOS: Physical sciences, ddc:500.2, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Basic research, 0103 physical sciences, CERN, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Inelastic proton scattering, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Other reactions above meson production thresholds, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Física, Pion-induced reactions, Research council, nuclear target, Physics::Accelerator Physics, HARP Experiment, High Energy Physics::Experiment, Humanities, Particle Physics - Experiment
Abstract

Measurements of the double-differential proton production cross-section d(2 sigma)/dpd Omega in the range of momentum 0.5 GeV/c, We gratefully acknowledge the help and support of the PS beam staff and of the numerous technical collaborators who contributed to the detector design, construction, commissioning and operation. In particular, we would like to thank G. Barichello, R. Brocard, K. Burin, V. Carassiti, F. Chignoli, D. Conventi, G. Decreuse, M. Delattre, C. Detraz, A. Domeniconi, M. Dwuznik, F. Evangelisti, B. Friend, A. Iaciofano, I. Krasin, D. Lacroix, J.-C. Legrand, M. Lobello, M. Lollo, J. Loquet, F. Marinilli, R. Mazza, J. Mulon, L. Musa, R. Nicholson, A. Pepato, P. Petev, X. Pons, I. Rusinov, M. Scandurra, E. Usenko, R. van der Vlugt, for their support in the construction of the detector and P. Dini for his contribution to Monte Carlo production. The collaboration acknowledges the major contributions and advice of M. Baldo-Ceolin, L. Linssen, M.T. Muciaccia and A. Pullia during the construction of the experiment. The collaboration is indebted to V. Ableev, F. Bergsma, P. Binko, E. Boter,M. Calvi, C. Cavion,M.Chizov, A. Chukanov, A. DeSanto, A. DeMin, M. Doucet, D. D¨ullmann, V. Ermilova, W. Flegel, Y. Hayato, A. Ichikawa, O. Klimov, T. Kobayashi, D. Kustov, M. Laveder, M. Mass, H. Meinhard, A. Menegolli, T. Nakaya, K. Nishikawa, M. Paganoni, F. Paleari, M. Pasquali, M. Placentino, V. Serdiouk, S. Simone, P.J. Soler, S. Troquereau, S. Ueda, A. Valassi and R. Veenhof for their contributions to the experiment. We acknowledge the contributions of V. Ammosov, G. Chelkov, D. Dedovich, F. Dydak, M. Gostkin, A. Guskov, D. Khartchenko, V. Koreshev, Z. Kroumchtein, I. Nefedov, A. Semak, J. Wotschack, V. Zaets and A. Zhemchugov to the work described in this paper. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium), Ministerio de Educación y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow), the Russian Foundation for Basic Research (grant 08-02-00018), the Bulgarian Mational Science Fund (contract VU-F- 205/2006) and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support.

Published
2010

18. Forward production of charged pions with incident protons on nuclear targets at the CERN Proton Synchrotron

Author

M. C. Morone, C. N. Booth, P. Gorbunov, E. Di Capua, F. Bobisut, Alexey Krasnoperov, Ilya Tsukerman, G. B. Mills, V. Grichine, U. Dore, G. Giannini, A. Artamonov, M. Apollonio, S.A. Bunyatov, Domizia Orestano, R. Schroeter, G.D. Barr, D. Kolev, D. W. Schmitz, P. Chimenti, J. Dumarchez, Silvia Borghi, A. Kayis-Topaksu, G.P. Skoro, Vladimir Ivanchenko, M. Mezzetto, S. Piperov, R. Tsenov, U. Gastaldi, L. Coney, Claus Gößling, L. Tortora, Simone Gilardoni, F. Ferri, M. Bogomilov, A. Cervera-Villanueva, A. Ivanchenko, S. Gianì, Petar Temnikov, D. Gibin, Ioannis Papadopoulos, C. Wiebusch, L. Howlett, N. G. Polukhina, J.S. Graulich, V. Palladino, Piero Zucchelli, E. Tcherniaev, A. Guglielmi, V. Serdiouk, M. Bonesini, G. Prior, A. Grossheim, E. Radicioni, Jordi Burguet-Castell, V. Tereschenko, J. Panman, C. Meurer, G. Grégoire, M. G. Catanesi, A. Tonazzo, Malcolm Ellis, P. Novella, A. Grant, J. Martín-Albo, J.J. Gómez-Cadenas, B. A. Popov, A. Blondel, M. Sorel, G. Vidal-Sitjes, Fr Pastore, Rob Edgecock, M. Kirsanov, A. Bagulya, 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), APC - Neutrinos, 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)-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)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), HARP, Apollonio, M, Artamonov, A, Bagulya, A, Barr, G, Blondel, A, Bobisut, F, Bogomilov, M, Bonesini, M, Booth, C, Borghi, S, Bunyatov, S, Burguet Castell, J, Catanesi, Mg, Cervera Villanueva, A, Chimenti, P, Coney, L, Di Capua, E, Dore, U, Dumarchez, J, Edgecock, R, Ellis, M, Ferri, F, Gastaldi, U, Giani, S, Giannini, G, Gibin, D, Gilardoni, S, Gorbunov, P, Gossling, C, Gomez Cadenas, Jj, Grant, A, Graulich, J, Gregoire, G, Grichine, V, Grossheim, A, Guglielmi, A, Howlett, L, Ivanchenko, A, Ivanchenko, V, Kayis Topaksu, A, Kirsanov, M, Kolev, D, Krasnoperov, A, Martin Albo, J, Meurer, C, Mezzetto, M, Mills, Gb, Morone, Mc, Novella, P, Orestano, Domizia, Palladino, V, Panman, J, Papadopoulos, I, Pastore, F, Piperov, S, Polukhina, N, Popov, B, Prior, G, Radicioni, E, Schmitz, D, Schroeter, R, Serdiouk, V, Skoro, G, Sorel, M, Tcherniaev, E, Temnikov, P, Tereschenko, V, Tonazzo, A, Tortora, L, Tsenov, R, Tsukerman, I, Vidal Sitjes, G, Wiebusch, C, Zucchelli, P., Blondel, Alain, Borghi, Silvia, Morone, Maria Cristina, Prior, Gersende, Schroeter, Raphaël, Çukurova Üniversitesi, 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 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 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)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Çukurova Üniversitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), and 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 Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Proton, Hadron, chemistry.chemical_element, Proton Synchrotron, ddc:500.2, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear interaction length, Nuclear Experiment, 010306 general physics, HARP, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Física, Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin), chemistry, Beamline, Physics::Accelerator Physics, High Energy Physics::Experiment, Beryllium, Atomic physics, Particle Physics - Experiment
Abstract

et al., Measurements of the double-differential pi(+/-) production cross section in the range of momentum 0.5, We gratefully acknowledge the help and support of the PS beam staff and of the numerous technical collaborators who contributed to the detector design, construction, commissioning, and operation. In particular, we would like to thank G. Barichello, R. Brocard, K. Burin, V. Carassiti, F. Chignoli, D. Conventi, G. Decreuse, M. Delattre, C. Detraz, A. Domeniconi, M. Dwuznik, F. Evangelisti, B. Friend, A. Iaciofano, I. Krasin, D. Lacroix, J.-C. Legrand, M. Lobello, M. Lollo, J. Loquet, F. Marinilli, R. Mazza, J. Mulon, L. Musa, R. Nicholson, A. Pepato, P. Petev, X. Pons, I. Rusinov, M. Scandurra, E. Usenko, and R. van der Vlugt for their support in the construction of the detector and P. Dini for his contribution to Monte Carlo production. The collaboration also acknowledges the major contributions and advice of M. Baldo-Ceolin, L. Linssen, M.T. Muciaccia, and A. Pullia during the construction of the experiment. The collaboration is indebted to V. Ableev, F. Bergsma, P. Binko, E. Boter, M. Calvi, C. Cavion, M.Chizov, A. Chukanov, A. DeSanto, A. DeMin, M. Doucet, D. D¨ullmann, V. Ermilova,W. Flegel, Y. Hayato, A. Ichikawa, O. Klimov, T. Kobayashi, D. Kustov, M. Laveder, M. Mass, H. Meinhard, A. Menegolli, T. Nakaya, K. Nishikawa, M. Paganoni, F. Paleari, M. Pasquali, M. Placentino, V. Serdiouk, S. Simone, P. J. Soler, S. Troquereau, S. Ueda, A. Valassi, and R. Veenhof for their contributions to the experiment. We also acknowledge the contributions of V. Ammosov, G. Chelkov, D. Dedovich, F. Dydak, M. Gostkin, A. Guskov, D. Khartchenko, V. Koreshev, Z. Kroumchtein, I. Nefedov, A. Semak, J. Wotschack, V. Zaets, and A. Zhemchugov to the work described in this paper. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium), Ministerio de Educacion y Ciencia, Grant FPA2003-06921-c02-02, and Generalitat Valenciana, Grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow), the Russian Foundation for Basic Research (Grant 08-02-00018), and the Particle Physics and Astronomy Research Council (UK).We gratefully acknowledge their support.

Published
2009

19. Absolute momentum calibration of the HARP TPC

Author

C. N. Booth, Malcolm Ellis, E. Di Capua, P. Novella, N. G. Polukhina, F. J. P. Soler, Alexey Krasnoperov, A. Kayis-Topaksu, L. Coney, M. G. Catanesi, A. Blondel, Simone Gilardoni, D. W. Schmitz, G. Giannini, V. Tereschenko, M. C. Morone, Ioannis Papadopoulos, V. Palladino, S. Giani, C. Meurer, M. Bonesini, S.A. Bunyatov, D. Kolev, V. Grichine, Vladimir Ivanchenko, U. Dore, Silvia Borghi, A. Bagulya, M. Sorel, L. Howlett, G.B. Mills, J.S. Graulich, Petar Temnikov, G. Prior, A. Grossheim, C. Wiebusch, Fr Pastore, A. De Santo, M. Mezzetto, J Martín–Albo, S. Piperov, M. Apollonio, A. Artamonov, A. Grant, Domizia Orestano, P. Zucchelli, Ilya Tsukerman, J Burguet–Castell, E. Tcherniaev, E. Radicioni, G. Vidal–Sitjes, R. Tsenov, G.D. Barr, A. Guglielmi, A. Cervera Villanueva, Mikhail Kirsanov, J. J. Gómez Cadenas, Rob Edgecock, V. Serdiouk, P. Gorbunov, P. Chimenti, Ghislain Grégoire, D. Gibin, B. A. Popov, M. Chizhov, U. Gastaldi, R. Schroeter, C Göß ling, Federico Ferri, L. Tortora, F. Bobisut, J. Dumarchez, A. Tonazzo, M. Bogomilov, Rob Veenhof, J. Panman, 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), APC - Neutrinos, 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 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)-AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), HARP, Çukurova Üniversitesi, 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)-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)-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)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), M. G., Catanesi, Palladino, Vittorio, Blondel, Alain, Borghi, Silvia, Morone, Maria Cristina, Prior, Gersende, Schroeter, Raphaël, Çukurova Üniversitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, Catanesi, Mg, Radicioni, E, Edgecock, R, Ellis, M, Soler, Fjp, Gossling, C, Bunyatov, S, Krasnoperov, A, Popov, B, Serdiouk, V, Tereschenko, V, Di Capua, E, Vidal Sitjes, G, Artamonov, A, Giani, S, Gilardoni, S, Gorbunov, P, Grant, A, Grossheim, A, Ivanchenko, V, Kayis Topaksu, A, Panman, J, Papadopoulos, I, Tcherniaev, E, Tsukerman, I, Veenhof, R, Wiebusch, C, Zucchelli, P, Blondel, A, Borghi, S, Morone, Mc, Prior, G, Schroeter, R, Meurer, C, Gastaldi, U, Mills, Gb, Graulich, J, Gregoire, G, Bonesini, M, Ferri, F, Kirsanov, M, Bagulya, A, Grichine, V, Polukhina, N, Palladino, V, Coney, L, Schmitz, D, Barr, G, De Santo, A, Bobisut, F, Gibin, D, Guglielmi, A, Mezzetto, M, Dumarchez, J, Dore, U, Orestano, Domizia, Pastore, F, Tonazzo, A, Tortora, L, Booth, C, Howlett, L, Bogomilov, M, Chizhov, M, Kolev, D, Tsenov, R, Piperov, S, Temnikov, P, Apollonio, M, Chimenti, P, Giannini, G, Burguet Castell, J, Cervera Villanueva, A, Gomez Cadenas, Jj, Martin Albo, J, Novella, P, and Sorel, M.

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Time projection chambers, FOS: Physical sciences, Detector alignment and calibration methods (lasers,sources, particle-beams), ddc:500.2, Tracking (particle physics), 01 natural sciences, Particle detector, Particle identification, Nuclear physics, 0103 physical sciences, Calibration, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Detector alignment and calibration methods, Detectors and Experimental Techniques, 010306 general physics, Nuclear Experiment, Instrumentation, Mathematical Physics, HARP, Physics, Momentum (technical analysis), Spectrometer, 010308 nuclear & particles physics, Detector, Settore FIS/01 - Fisica Sperimentale, Física, Instrumentation and Detectors (physics.ins-det), Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Abstract

In the HARP experiment the large-angle spectrometer is using a cylindrical TPC as main tracking and particle identification detector. The momentum scale of reconstructed tracks in the TPC is the most important systematic error for the majority of kinematic bins used for the HARP measurements of the double-differential production cross-section of charged pions in proton interactions on nuclear targets at large angle. The HARP TPC operated with a number of hardware shortfalls and operational mistakes. Thus it was important to control and characterize its momentum calibration. While it was not possible to enter a direct particle beam into the sensitive volume of the TPC to calibrate the detector, a set of physical processes and detector properties were exploited to achieve a precise calibration of the apparatus. In the following we recall the main issues concerning the momentum measurement in the HARP TPC, and describe the cross-checks made to validate the momentum scale. As a conclusion, this analysis demonstrates that the measurement of momentum is correct within the published precision of 3%., Comment: To be published by JINST

Published
2008

20. Large-angle production of charged pions by 3 GeV/c - 12.9 GeV/c protons on beryllium, aluminium and lead targets

Author

Silvia Borghi, A. Guglielmi, Simone Gilardoni, N. G. Polukhina, M. Mezzetto, S.A. Bunyatov, C. N. Booth, Rob Edgecock, U. Gastaldi, A. Cervera-Villanueva, E. Tcherniaev, Ilya Tsukerman, A. Ivanchenko, M. C. Morone, G. Giannini, A. Kayis-Topaksu, G. Prior, Domizia Orestano, V. Serdiouk, G.D. Barr, D. Gibin, Piero Zucchelli, Malcolm Ellis, A. Grossheim, E. Di Capua, Claus Gößling, M. Apollonio, A. Bagulya, L. Howlett, P. Novella, J.S. Graulich, M. Bonesini, G.B. Mills, C. Wiebusch, P. Chimenti, S. Gianì, Ioannis Papadopoulos, J. Martín-Albo, J.J. Gómez-Cadenas, M. G. Catanesi, M. Chizhov, J. Dumarchez, V. Grichine, U. Dore, G. Grégoire, A. De Santo, Jordi Burguet-Castell, D. Kolev, Alexey Krasnoperov, V. Palladino, M. Sorel, Vladimir Ivanchenko, S. Piperov, D. W. Schmitz, Rob Veenhof, G. Vidal-Sitjes, B. A. Popov, M. Bogomilov, E. Radicioni, L. Tortora, Petar Temnikov, V. Tereschenko, A. Tonazzo, F. J. P. Soler, A. Artamonov, F. Bobisut, A. Blondel, L. Coney, R. Tsenov, J. Panman, C. Meurer, Fr Pastore, A. Grant, Mikhail Kirsanov, P. Gorbunov, R. Schroeter, Federico Ferri, 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), APC - Neutrinos, 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)-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)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), HARP, Blondel, Alain, Borghi, Silvia, Morone, Maria Cristina, Prior, Gersende, Schroeter, Raphaël, Catanesi, Mg, Radicioni, E, Edgecock, R, Ellis, M, Soler, Fjp, Goessling, C, Bunyatov, S, Krasnoperov, A, Popov, B, Serdiouk, V, Tereschenko, V, Di Capua, E, Vidal Sitjes, G, Artamonov, A, Giani, S, Gilardoni, S, Gorbunov, P, Grant, A, Grossheim, A, Ivanchenko, A, Ivanchenko, V, Kayis Topaksu, A, Panman, J, Papadopoulos, I, Tcherniaev, E, Tsukerman, I, Veenhof, R, Wiebusch, C, Zucchelli, P, Blondel, A, Borghi, S, Morone, Mc, Prior, G, Schroeter, R, Meurer, C, Gastaldi, U, Mills, Gb, Graulich, J, Gregoire, G, Bonesini, M, Ferri, F, Kirsanov, M, Bagulya, A, Grichine, V, Polukhina, N, Palladino, V, Coney, L, Schmitz, D, Barr, G, De Santo, A, Bobisut, F, Gibin, D, Guglielmi, A, Mezzetto, M, Dumarchez, J, Dore, U, Orestano, Domizia, Pastore, F, Tonazzo, A, Tortora, L, Booth, C, Howlett, L, Bogomilov, M, Chizhov, M, Kolev, D, Tsenov, R, Piperov, S, Temnikov, P, Apollonio, M, Chimenti, P, Giannini, G, Burguet Castell, J, Cervera Villanueva, A, Gomez Cadenas, Jj, Martin Albo, J, Novella, P, Sorel, M., Çukurova Üniversitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, Harp, Collaboration, M. G., Catanesi, Palladino, Vittorio, Çukurova Üniversitesi, 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 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 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)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-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)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and Giannini, Gianrossano

Subjects
Nuclear reaction, Particle physics, Meson, Proton, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Hadron, Nuclear Theory, FOS: Physical sciences, ddc:500.2, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pion, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear interaction length, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, Time projection chamber, Large Hadron Collider, 010308 nuclear & particles physics, Settore FIS/01 - Fisica Sperimentale, Física, Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin), Physics::Accelerator Physics, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

Measurements of the double-differential pi(+/-) production cross-section in the range of momentum 100 MeV/c, We gratefully acknowledge the help and support of the PS beam staff and of the numerous technical collaborators who contributed to the detector design, construction, commissioning and operation. In particular, we would like to thank G. Barichello, R. Brocard, K. Burin, V. Carassiti, F. Chignoli, D. Conventi, G. Decreuse, M. Delattre, C. Detraz, A. Domeniconi, M. Dwuznik, F. Evangelisti, B. Friend, A. Iaciofano, I. Krasin, D. Lacroix, J.-C. Legrand, M. Lobello, M. Lollo, J. Loquet, F. Marinilli, J. Mulon, L. Musa, R. Nicholson, A. Pepato, P. Petev, X. Pons, I. Rusinov, M. Scandurra, E. Usenko, and R. van der Vlugt, for their support in the construction of the detector. The collaboration acknowledges the major contributions and advice of M. Baldo-Ceolin, L. Linssen, M.T. Muciaccia and A. Pullia during the construction of the experiment. The collaboration is indebted to V. Ableev, P. Arce, F. Bergsma, P. Binko, E. Boter, C. Buttar, M. Calvi, M. Campanelli, C. Cavion, A. Chukanov, A. De Min, M. Doucet, D. D¨ullmann, R. Engel, V. Ermilova,W. Flegel, P. Gruber, Y. Hayato, P. Hodgson, A. Ichikawa, A. Ivanchenko, I. Kato, O. Klimov, T. Kobayashi, D. Kustov, M. Laveder, M. Mass, H. Meinhard, T. Nakaya, K. Nishikawa, M. Paganoni, F. Paleari, M. Pasquali, J. Pasternak, C. Pattison, M. Placentino, S. Robbins, G. Santin, S. Simone, A. Tornero, S. Troquereau, S. Ueda, A. Valassi, F. Vannucci and K. Zuber for their contributions to the experiment and to P. Dini for his contribution to MC production. We acknowledge the contributions of V. Ammosov, G. Chelkov, D. Dedovich, F. Dydak, M. Gostkin, A. Guskov, D. Khartchenko, V. Koreshev, Z. Kroumchtein, I. Nefedov, A. Semak, J. Wotschack, V. Zaets and A. Zhemchugov to the work described in this paper. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucl´eaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium), Ministerio de Educacion y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium f¨ur Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow) and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support. This work was supported in part by the Swiss National Science Foundation and the Swiss Agency for Development and Cooperation in the framework of the programme SCOPES - Scientific co-operation between Eastern Europe and Switzerland.

Published
2007

21. Particle identification algorithms for the HARP forward spectrometer

Author

Gueorgui Chelkov, D. Kolev, S. Piperov, E. Di Capua, Y. Hayato, L. Tortora, A. Artamonov, F. Paleari, V. Grichine, U. Dore, M. Mezzetto, R. Tsenov, J. Dumarchez, U. Gastaldi, V. G. Zaets, Kai Zuber, M. Bogomilov, Alessandro Menegolli, Alexey Zhemchugov, Ilya Tsukerman, L. Howlett, D. Kustov, J.S. Graulich, Craig Buttar, C. Pattison, S. Gianì, A. De Santo, A. Guskov, V. V. Ammosov, D. Gibin, Manuela Campanelli, Alexey Krasnoperov, G. Prior, A. Kayis-Topaksu, Petar Temnikov, A. Grossheim, C. N. Booth, Silvia Borghi, Artem Chukanov, V. Palladino, I. Kato, A. Tonazzo, R. Schroeter, Tsuyoshi Nakaya, Satoshi Ueda, M. C. Morone, F. Vannucci, Mikhail Ivanovitch Gostkin, Claus Gößling, D. W. Schmitz, M. Apollonio, F. Bobisut, M. Bonesini, Vladimir Ivanchenko, M. Sorel, F. J. P. Soler, V. I. Koreshev, Federico Ferri, G. Vidal-Sitjes, D. Khartchenko, V. Tereshchenko, S. Robbins, L. Coney, G. Giannini, Marco Laveder, P. Chimenti, Jordi Burguet-Castell, A. Cervera-Villanueva, Yu. Nefedov, Mikhail Kirsanov, A. Semak, P. Gorbunov, Ioannis Papadopoulos, A. Ichikawa, Rob Veenhof, S.A. Bunyatov, Paul Hodgson, A. Grant, J. Panman, Malcolm Ellis, P. Novella, J.J. Gómez-Cadenas, E. Tcherniaev, K. Nishikawa, V. Serdiouk, C. Wiebusch, A. Guglielmi, Giovanni Santin, Marco Paganoni, Rob Edgecock, G. Grégoire, Z. Kroumchtein, M. G. Catanesi, G.B. Mills, N. G. Polukhina, M. Chizhov, A. Blondel, D. Dedovitch, P. Gruber, A. Tornero, Simone Gilardoni, J. Pasternak, Takashi Kobayashi, A. Bagulya, Domizia Orestano, Piero Zucchelli, G.D. Barr, B. A. Popov, Fr Pastore, E. Radicioni, Pedro Arce, A. De Min, O.L. Klimov, 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), APC - Neutrinos, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-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)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), HARP, 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 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)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), M. G., Catanesi, Palladino, Vittorio, Blondel, Alain, Borghi, Silvia, Campanelli, Mario, Cervera Villanueva, Anselmo, Morone, Maria Cristina, Prior, Gersende, Schroeter, Raphaël, 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)-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)-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)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Catanesi, Mg, Radicioni, E, Edgecock, R, Ellis, M, Robbins, S, Soler, Fjp, Gossling, C, Bunyatov, S, Chelkov, G, Chukanov, A, Dedovitch, D, Gostkin, M, Guskov, A, Khartchenko, D, Klimov, O, Krasnoperov, A, Kroumchtein, Z, Kustov, D, Nefedov, Y, Popov, B, Serdiouk, V, Tereshchenko, V, Zhemchugov, A, Di Capua, E, Vidal Sitjes, G, Artamonov, A, Arce, P, Giani, S, Gilardoni, S, Gorbunov, P, Grant, A, Grossheim, A, Gruber, P, Ivanchenko, V, Kayis Topaksu, A, Panman, J, Papadopoulos, I, Pasternak, J, Tcherniaev, E, Tsukerman, I, Veenhotf, R, Wiebusch, C, Zucchelli, P, Blondel, A, Borghi, S, Campanelli, M, Cervera Villanueva, A, Morone, Mc, Prior, G, Schroeter, R, Kato, I, Nakaya, T, Nishikawa, K, Ueda, S, Gastaldi, U, Mills, Gb, Graulich, J, Gregoire, G, Bonesini, M, De Min, A, Ferri, F, Paganoni, M, Paleari, F, Kirsanov, M, Bagulya, A, Grichine, V, Polukhina, N, Palladino, V, Coney, L, Schmitz, D, Barr, G, De Santo, A, Pattison, C, Zuber, K, Bobisut, F, Gibin, D, Guglielmi, A, Laveder, M, Menegolli, A, Mezzetto, M, Dumarchez, J, Vannucci, F, Ammosov, V, Koreshev, V, Semak, A, Zaets, V, Dore, U, Orestano, Domizia, Pastore, F, Tonazzo, A, Tortora, L, Booth, C, Buttar, C, Hodgson, P, Howlett, L, Bogomilov, M, Chizhov, M, Kolev, D, Tsenov, R, Piperov, S, Temnikov, P, Apollonio, M, Chimenti, P, Giannini, G, Santin, G, Hayato, Y, Ichikawa, A, Kobayashi, T, Burguet Castell, J, Gomez Cadenas, Jj, Novella, P, Sorel, M, and Tornero, A.

Subjects
Chorus Experiment, Cross-section, Nuclear and High Energy Physics, Particle physics, Meson, Physics::Instrumentation and Detectors, Performance, Hadron, Hadron production, ddc:500.2, 7. Clean energy, 01 natural sciences, Particle detector, Particle identification, Nuclear physics, Calorimeters, Time of flight, Pion, Pions, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Instrumentation, Cherenkov radiation, Construction, Physics, Momentum (technical analysis), Spectrometer, 010308 nuclear & particles physics, Threshold Cherenkov, 3. Good health, High Energy Physics::Experiment
Abstract

23 páginas, 26 figuras, 5 tablas.-- PACS nrs.: 95.55.Vj; 28.85.+c; 07.75.+h; 07.05.Kf; 14.40.Aq.-- et al., The particle identification (PID) methods used for the calculation of secondary pion yields with the HARP forward spectrometer are presented. Information from time of flight and Cherenkov detectors is combined using likelihood techniques. The efficiencies and purities associated with the different PID selection criteria are obtained from the data. For the proton-aluminium interactions at 12.9 GeV/c incident momentum, the PID efficiencies for positive pions are 86% in the momentum range below 2 GeV/c, 92% between 2 and 3 GeV/c and 98% in the momentum range above 3 GeV/c. The purity of the selection is better than 92% for all momenta. Special emphasis has been put on understanding the main error sources. The final PID uncertainty on the pion yield is 3.3%., We gratefully acknowledge the help and support of the PS beam staff and of the numerous technical collaborators who contributed to the detector design, construction, commissioning, and operation. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires (Belgium), Ministerio de Educación y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow), and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support.

Published
2007

22. The HARP detector at the CERN PS

Author

M. Apollonio, E. Radicioni, Jordi Burguet-Castell, D. Kustov, C. Pattison, L. Howlett, V. Tereshchenko, J.S. Graulich, P. Petev, F. Bobisut, P. Chimenti, Simone Gilardoni, O.L. Klimov, R. van der Vlugt, A. De Santo, J. Pasternak, A. Cervera-Villanueva, E. Di Capua, S. Simone, F. Chignoli, M. Pasquali, Artem Chukanov, C. N. Booth, A. Pepato, J. Panman, F. Evangelisti, F. Marinilli, Domizia Orestano, Alexey Krasnoperov, D. Kolev, Malcolm Ellis, A. Blondel, G.D. Barr, P. Novella, Silvia Borghi, I. Kato, J.J. Gómez-Cadenas, Fr Pastore, A. Tonazzo, M. T. Muciaccia, K. Burin, R. Nicholson, Mikhail Kirsanov, S. Piperov, B. A. Popov, F. J. P. Soler, P. Gorbunov, D. W. Schmitz, Ghislain Grégoire, L. Tortora, N. G. Polukhina, C. Wiebusch, Craig Buttar, G. Giannini, G. Prior, L. Coney, R. Schroeter, Petar Temnikov, D. Panayotov, M. Bogomilov, A. Grossheim, Federico Ferri, M. Mezzetto, M. Sorel, Kai Zuber, A. Artamonov, Alessandro Menegolli, F. Paleari, R. Tsenov, J. Dumarchez, P. Zucchelli, Ilya Tsukerman, A. Kayis-Topaksu, G. Barichello, F. Vannucci, Claus Gößling, I. Krasin, B. Friend, G. Vidal-Sitjes, Manuela Campanelli, V. Palladino, M. G. Catanesi, J.-C. Legrand, A. Grant, S. Giani, A. Bagulya, A. Guglielmi, Rob Edgecock, M. Chizhov, R. Brocard, Vladimir Ivanchenko, A. Iaciofano, Paul Hodgson, M. Bonesini, S. Robbins, V. Grichine, U. Dore, Marco Laveder, V. Carassiti, V. Postoev, Rob Veenhof, I. Rusinov, M. C. Morone, Ioannis Papadopoulos, Giovanni Santin, G. Decreuse, S.A. Bunyatov, E. Tcherniaev, V. Serdiouk, P. Gruber, M. Mass, A. Tornero, G.B. Mills, U. Gastaldi, S. Troquereau, P. Arce, D. Gibin, M. Lobello, 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), APC - Neutrinos, 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)-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)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), HARP, Catanesi, Mg, Muciaccia, Mt, Radicioni, E, Simone, S, Edgecock, R, Ellis, M, Robbins, S, Soler, Fjp, Gossling, C, Mass, M, Bunyatov, S, Chukanov, A, Klimov, O, Krasin, I, Krasnoperov, A, Kustov, D, Popov, B, Serdiouk, V, Tereshchenko, V, Carassiti, V, Di Capua, E, Evangelisti, F, Vidal Sitjes, G, Artamonov, A, Arce, P, Brocard, R, Decreuse, G, Friend, B, Giani, S, Gilardoni, S, Gorbunov, P, Grant, A, Grossheim, A, Gruber, P, Ivanchenko, V, Legrand, Jc, Kayis Topaksu, A, Panman, J, Papadopoulos, I, Pasternak, J, Tcherniaev, E, Tsukerman, I, van der Vlugt, R, Veenhof, R, Wiebusch, C, Zucchelli, P, Blondel, A, Borghi, S, Campanelli, M, Cervera Villanueva, A, Morone, Mc, Prior, G, Schroeter, R, Kato, I, Gastaldi, U, Mills, Gb, Graulich, J, Gregoire, G, Bonesini, M, Chignoli, F, Ferri, F, Paleari, F, Kirsanov, M, Postoev, V, Bagulya, A, Grichine, V, Polukhina, N, Palladino, V, Coney, L, Schmitz, D, Barr, G, De Santo, A, Pattison, C, Zuber, K, Barichello, G, Bobisut, F, Gibin, D, Guglielmi, A, Laveder, M, Menegolli, A, Mezzetto, M, Pepato, A, Dumarchez, J, Troquereau, S, Vannucci, F, Dore, U, Iaciofano, A, Lobello, M, Marinilli, F, Orestano, Domizia, Panayotov, D, Pasquali, M, Pastore, F, Tonazzo, A, Tortora, L, Booth, C, Buttar, C, Hodgson, P, Howlett, L, Nicholson, R, Bogomilov, M, Burin, K, Chizhov, M, Kolev, D, Petev, P, Rusinov, I, Tsenov, R, Piperov, S, Temnikov, P, Apollonio, M, Chimenti, P, Giannini, G, Santin, G, Burguet Castell, J, Gomez Cadenas, Jj, Novella, P, Sorel, M, Tornero, A., 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 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 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)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), and 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 Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Time projection chamber, Large Hadron Collider, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Spectrometer, 010308 nuclear & particles physics, Cherenkov detector, Physics::Instrumentation and Detectors, Particle detectors, 01 natural sciences, Particle identification, Particle detector, law.invention, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Nuclear physics, law, Dipole magnet, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Instrumentation, HARP
Abstract

HARP is a high-statistics, large solid angle experiment to measure hadron production using proton and pion beams with momenta between 1.5 and 15 GeV/c impinging on many different solid and liquid targets from low to high Z. The experiment, located in the T9 beam of the CERN PS, took data in 2001 and 2002. For the measurement of momenta of produced particles and for the identification of particle types, the experiment includes a large-angle spectrometer, based on a Time Projection Chamber and a system of Resistive Plate Chambers, and a forward spectrometer equipped with a set of large drift chambers, a threshold Cherenkov detector, a time-of-flight wall and an electromagnetic calorimeter. The large angle system uses a solenoidal magnet, while the forward spectrometer is based on a dipole magnet. Redundancy in particle identification has been sought, to enable the cross-calibration of efficiencies and to obtain a few percent overall accuracy in the cross-section measurements. Detector construction, operation and initial physics performances are reported. In addition, the full chain for data recording and analysis, from trigger to the software framework, is described. (c) 2006 Elsevier B.V. All rights reserved.

Published
2007

23. Breakout from the hot CNO cycle via the18Ne(α,p)21Nareaction. II. Extended energy rangeEc.m.∼1.7–2.9MeV

Author

Alain Ninane, Joachim Görres, D. Groombridge, Alexander Ostrowski, Alison Laird, J.S. Graulich, Thomas Davinson, A. Musumarra, Javad Rahighi, Philip Woods, Hendrik Schatz, Alan Shotter, S. Cherubini, P. Leleux, A. Di Pietro, W. Bradfield-Smith, and Michael Wiescher

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), CNO cycle, Breakout, Analytical chemistry, Atomic physics
Published
2002

24. Indirect study of the astrophysically important15O(α,γ)19Nereaction through2H(18Ne,19Ne)1H

Author

M. G. Pellegriti, J.S. Graulich, Alain Ninane, Alexander Ostrowski, A.M. Laird, M. Lattuada, Pierre Leleux, Thomas Davinson, P. Figuera, A. Spitaleri, Philip Woods, A. C. Shotter, Aurora Tumino, D. Groombridge, Marialuisa Aliotta, A. Di Pietro, W. Galster, J. Hinnefeld, A. Musumarra, Jean Vervier, L. Michel, and Silvio Cherubini

Subjects
Reaction rate, Physics, Nuclear and High Energy Physics, CNO cycle, Plasma, Atomic physics, Nuclear Experiment, Excitation
Abstract

The 15O(α,γ)19Ne reaction is generally considered as a potential breakout reaction from the hot CNO cycle. Under nova conditions, the reaction rate is dominated by a single sub-Coulomb resonance at Ec.m.=504 keV which corresponds to a 19Ne excitation energy of ER=4.033 MeV. Results from a d(18Ne,19Ne)p experiment show that states of astrophysical interest are populated in this reaction. An upper limit for the α-branching ratio of the 4.033 MeV state was identified and branching ratios for other states in 19Ne were found to be in good agreement with stable beam based results.

Published
2002

25. Break-out from the hot-CNO cycle studied with radioactive beams

Author

L. Michel, Silvio Cherubini, A. Musumarra, Jean Vervier, Alain Ninane, Francesco Cappuzzello, S. Morrow, W. Galster, J.S. Graulich, A. Spitaleri, Pierre Leleux, Aurora Tumino, Marialuisa Aliotta, D. Groombridge, J. Hinnefeld, Alan Shotter, Thomas Davinson, Alexander Ostrowski, A.M. Laird, and A. Cunsolo

Subjects
Reaction rate, Physics, Nuclear and High Energy Physics, CNO cycle, Branching fraction, Resonance, Nova (laser), Atomic physics, Excitation, Beam (structure), Intensity (physics)
Abstract

The 15 O( α , γ ) 19 Ne reaction is generally considered as the potential breakout reaction from the hot-CNO cycle. Under nova conditions, the reaction depends dominantly on a single sub-Coulomb resonance at E c.m. =504 keV which corresponds to a 19 Ne excitation energy of E R =4.033 MeV. It is possible to model the 15 O( α , γ ) 19 Ne reaction rate, if the branching ratio Γ α / Γ and the total resonance width Γ of this state are known. Results from an exploratory 18 Ne(d,p) experiment performed in inverse kinematics at E lab =44.1 MeV and 10 6 pps beam intensity show that the 4.033 MeV state—among other resonances of astrophysical interest—is populated in this reaction ( d σ/ d Ω=0.5±0.2 mb / sr at θ lab =138°). The determination of Γ α / Γ =0.28±0.13 for another 19 Ne resonance at E R =4.600 MeV found to be in good agreement with a stable beam based result shows the feasibility of this radioactive nuclear beam based approach provided that higher 18 Ne beam intensities become available.

Published
2002

26. Hot CNO breakout: status of the d(18Ne,p)19Ne*(a)15O reaction

Author

Alison Laird, Marialuisa Aliotta, Pierre Leleux, A. Musumarra, J.S. Graulich, C. Spitaleri, Jean Vervier, A. Tumino, M. Lattuada, D. Groombridge, M. G. Pellegriti, T. Davinson, Alain Ninane, W. Galster, A. C. Shotter, S. Cherubini, Jerry Hinnefeld, Alexander Ostrowski, P. Figuera, P. J. Woods, and A. Di Pietro

Subjects
Physics, Nuclear and High Energy Physics, Breakout, Astrophysics
Published
2001

27. 7.07 MeV resonant state in19Nereexamined through a new measurement of the18F(p,α)15Oreaction and18F(p,p)scattering

Author

Freddy Binon, A. Di Pietro, Michael Wiescher, W. Bradfield-Smith, Thomas Davinson, S. Cherubini, P. Leleux, J.S. Graulich, Jean Vanhorenbeeck, R. Coszach, S. El Hajjami, Alan Shotter, W. Galster, and Joachim Görres

Subjects
Elastic scattering, Physics, Nuclear and High Energy Physics, Partial width, Ion beam, Scattering, Physics::Accelerator Physics, State (functional analysis), Plasma, Atomic physics, Nuclear Experiment, Resonance (particle physics), Ion
Abstract

A new measurement of the 18F(p,α) reaction and the 18F(p,p) elastic scattering was performed at the Radioactive Ion Beam facility in Louvain-la-Neuve. Values were deduced for the resonance energy, total width, partial width, and resonance strength of the 7.07 MeV level in 19Ne, confirming and increasing the precision of a first result obtained several years ago in the same lab.

Published
2000

28. A study of the [sup 15]O(α,γ) reaction via the α-decay of [sup 19]Ne

Author

A. C. Shotter, Pierre Leleux, Alain Ninane, C. Spitaleri, T. Davinson, J.S. Graulich, A. Cunsolo, Francesco Cappuzzello, L. Michel, Alexander Ostrowski, A. Di Pietro, S. Cherubini, P. Figuera, A. Tumino, A. Musumarra, Jerry Hinnefeld, Jean Vervier, D. Groombridge, Alison Laird, Marialuisa Aliotta, and W. Galster

Subjects
Physics, CNO cycle, education.field_of_study, Deuterium, Nucleosynthesis, Branching fraction, Excited state, Population, Gamma spectroscopy, Alpha decay, Atomic physics, education
Abstract

Post-accelerated radioactive ion beams produced at Louvain-la-Neuve, Belgium have been used to investigate the hot-CNO cycle breakout reaction 15O(α,γ)19Ne. This reaction not only leads to the synthesis of proton-rich nuclei via the rp-process but is also thought to initiate the massive release of energy which can trigger steller explosions such as novae, supernovae and x-ray bursters. The properties of this reaction have been investigated via a study of the relevant decays of excited states in 19Ne. These resonances have been populated using an inverse 18Ne(d,p) reaction on a deuterated polyethylene target. Experiments have been carried out using an especially designed high granularity large solid angle silicon strip detector array consisting of 320 elements. The method, the experimental set-up, as well as results on the population and decay of states of astrophysical interest will be presented.

Published
1999

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