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154 results on '"Hexi Shi"'

51. Absolute Energy Calibration of X-ray TESs with 0.04 eV Uncertainty at 6.4 keV in a Hadron-Beam Environment

Author

D. R. Schmidt, M. Iwasaki, Shinya Yamada, Keisuke Kuwabara, Shigeru Ishimoto, James P. Hays-Wehle, Joseph W. Fowler, Catalina Curceanu, Hexi Shi, T. Hashimoto, Kenta Itahashi, Carl D. Reintsema, M. Sato, E. Widmann, Douglas A. Bennett, Johann Zmeskal, J. Marton, Ryugo S. Hayano, Hirofumi Noda, M. Iliescu, Joel N. Ullom, H. Tatsuno, Ken Suzuki, Galen C. O'Neil, Johnathon D. Gard, Shinji Okada, D. S. Swetz, Jens Uhlig, Takatoshi Suzuki, Gene C. Hilton, Fredrik Gustafsson, H. Outa, William B. Doriese, and Yue Ma

Subjects
Superconductivity, Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Hadron, FOS: Physical sciences, Particle accelerator, Instrumentation and Detectors (physics.ins-det), Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, Charged particle, law.invention, Nuclear physics, Full width at half maximum, law, 0103 physical sciences, General Materials Science, Astrophysics::Earth and Planetary Astrophysics, Transition edge sensor, 010306 general physics, Energy (signal processing), Beam (structure)
Abstract

A performance evaluation of superconducting transition-edge sensors (TESs) in the environment of a pion beam line at a particle accelerator is presented. Averaged across the 209 functioning sensors in the array, the achieved energy resolution is 5.2 eV FWHM at Co $K_{\alpha}$ (6.9 keV) when the pion beam is off and 7.3 eV at a beam rate of 1.45 MHz. Absolute energy uncertainty of $\pm$0.04 eV is demonstrated for Fe $K_{\alpha}$ (6.4 keV) with in-situ energy calibration obtained from other nearby known x-ray lines. To achieve this small uncertainty, it is essential to consider the non-Gaussian energy response of the TESs and thermal cross-talk pile-up effects due to charged-particle hits in the silicon substrate of the TES array., Comment: Accepted for publication in J. Low Temperature Physics, special issue for the proceedings of the Low Temperature Detectors 16 conference

Published
2016

52. Experimental search for the violation of Pauli exclusion principle

Author

S. Bertolucci, A. Pichler, A. M. Bragadireanu, Diana Sirghi, Sergio Bartalucci, S. Di Matteo, L. De Paolis, O. Vazquez Doce, J.-P. Egger, Johann Marton, D. Pietreanu, Edoardo Milotti, M. Bazzi, C. Guaraldo, Florin Sirghi, Johann Zmeskal, Marco Miliucci, Hexi Shi, Laura Sperandio, Matthias Laubenstein, Alessandro Scordo, K. Piscicchia, E. Widmann, Hebatalla Elnaggar, Alberto Clozza, M. Iliescu, Catalina Curceanu, Michael Cargnelli, Shi, H., Milotti, E., Bartalucci, S., Bazzi, M., Bertolucci, S., Bragadireanu, A. M., Cargnelli, M., Clozza, A., De Paolis, L., Di Matteo, S., Egger, J. -P., Elnaggar, H., Guaraldo, C., Iliescu, M., Laubenstein, M., Marton, J., Miliucci, M., Pichler, A., Pietreanu, D., Piscicchia, K., Scordo, A., Sirghi, D. L., Sirghi, F., Sperandio, L., Vazquez Doce, O., Widmann, E., Zmeskal, J., and Curceanu, C.

Subjects
Systematic error, Particle physics, Physics and Astronomy (miscellaneous), Regular Article - Experimental Physics, Electron, 01 natural sciences, Fundamental symmetries, X-ray, symbols.namesake, Pauli exclusion principle, X-rays, 0103 physical sciences, Atom, Limit (mathematics), Fundamental symmetrie, 010306 general physics, Wave function, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, Background data, Quantum field theory, symbols, Ground state
Abstract

The VIolation of Pauli exclusion principle -2 experiment, or VIP-2 experiment, at the Laboratori Nazionali del Gran Sasso searches for X-rays from copper atomic transitions that are prohibited by the Pauli exclusion principle. Candidate direct violation events come from the transition of a 2p electron to the ground state that is already occupied by two electrons. From the first data taking campaign in 2016 of VIP-2 experiment, we determined a best upper limit of \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$3.4~\times ~10^{-29}$$\end{document}3.4×10-29 for the probability that such a violation exists. Significant improvement in the control of the experimental systematics was also achieved, although not explicitly reflected in the improved upper limit. By introducing a simultaneous spectral fit of the signal and background data in the analysis, we succeeded in taking into account systematic errors that could not be evaluated previously in this type of measurements.

Published
2018

53. On the Importance of Electron Diffusion in a Bulk-Matter Test of the Pauli Exclusion Principle

Author

Hexi Shi, M. Cargnelli, Luca De Paolis, K. Piscicchia, Alberto Clozza, Sergio Bartalucci, Marco Miliucci, Florin Sirghi, J. P. Egger, Matthias Laubenstein, Edoardo Milotti, D. Pietreanu, Johann Zmeskal, A. Pichler, Oton Vazquez Doce, Sergio Bertolucci, Laura Sperandio, Alessandro Scordo, Eberhard Widmann, Diana Sirghi, M. Iliescu, C. Guaraldo, Catalina Curceanu, J. Marton, Mario Bragadireanu, Massimiliano Bazzi, Milotti, Edoardo, Bartalucci, Sergio, Bertolucci, Sergio, Bazzi, Massimiliano, Bragadireanu, Mario, Cargnelli, Michael, Clozza, Alberto, Curceanu, Catalina, De Paolis, Luca, Egger, Jean-Pierre, Guaraldo, Carlo, Iliescu, Mihail, Laubenstein, Matthia, Marton, Johann, Miliucci, Marco, Pichler, Andrea, Pietreanu, Dorel, Piscicchia, Kristian, Scordo, Alessandro, Shi, Hexi, Sirghi, Diana, Sirghi, Florin, Sperandio, Laura, Vázquez Doce, Oton, Widmann, Eberhard, and Zmeskal, Johann

Subjects
General Physics and Astronomy, lcsh:Astrophysics, Electron, 01 natural sciences, Article, X-ray, Pauli exclusion principle, symbols.namesake, Quantum mechanics, lcsh:QB460-466, 0103 physical sciences, Atom, X-rays, lcsh:Science, 010306 general physics, Wave function, Physics, diffusion processes, fundamental symmetries, 010308 nuclear & particles physics, Thermal conduction, Random walk, lcsh:QC1-999, Symmetry (physics), symbols, lcsh:Q, diffusion processe, Ground state, lcsh:Physics
Abstract

The VIolation of Pauli (VIP) experiment (and its upgraded version, VIP-2) uses the Ramberg and Snow (RS) method (Phys. Lett. B 1990, 238, 438) to search for violations of the Pauli exclusion principle in the Gran Sasso underground laboratory. The RS method consists of feeding a copper conductor with a high direct current, so that the large number of newly-injected conduction electrons can interact with the copper atoms and possibly cascade electromagnetically to an already occupied atomic ground state if their wavefunction has the wrong symmetry with respect to the atomic electrons, emitting characteristic X-rays as they do so. In their original data analysis, RS considered a very simple path for each electron, which is sure to return a bound, albeit a very weak one, because it ignores the meandering random walks of the electrons as they move from the entrance to the exit of the copper sample. These complex walks bring the electrons close to many more atoms than in the RS calculation. Here, we consider the full description of these walks and show that this leads to a nontrivial and nonlinear X-ray emission rate. Finally, we obtain an improved bound, which sets much tighter constraints on the violation of the Pauli exclusion principle for electrons.

Published
2018

54. Studies of low-energy $K^{-}$ nuclear interactions by AMADEUS

Author

L. Fabbietti, P. Levi Sandri, Johann Zmeskal, E. Widmann, Hexi Shi, Florin Sirghi, A. D. Butt, M. Iwasaki, C. Guaraldo, D. L. Sirghi, F. Ghio, Carlo Fiorini, J. Marton, M. Cargnelli, O. Vazquez Doce, Magdalena Skurzok, Catalina Curceanu, M. Iliescu, Ryugo S. Hayano, S. Wycech, A. Spallone, Michał Silarski, Shinji Okada, M. Bazzi, A. M. Bragadireanu, D. Bosnar, Alessandro Scordo, R. Del Grande, Paweł Moskal, G. Belloti, Kristian Piscicchia, L. De Paolis, Marco Miliucci, and D. Pietreanu

Subjects
Quantum chromodynamics, Physics, Meson, 010308 nuclear & particles physics, QC1-999, Nuclear Theory, Hadron, Hyperon, Strangeness, 01 natural sciences, law.invention, Nuclear physics, Physics and Astronomy (all), Low energy, law, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, Collider
Abstract

The goal of the AMADEUS experiment is to shed light on unsolved fundamental issues in the non-perturbative strangeness QCD sector through the study of lowenergy K- hadronic interactions with light nuclear targets. The main open questions are the controversial nature of the Δ(1405) state, which is investigated in hyperon-pion correlation studies, and the possible existence of exotic antikaon multi-nucleon clusters, whose search in K- induced reactions is intimately related to the studies of the K- multi-nucleon absorption processes in hyperon-nucleon/nucleus channels. The DAΦNE collider at the INFN-LNF provides unique monochromatic low-momentum kaons from the φ meson decay almost at-rest, suitable for the AMADEUS studies. The KLOE detector is exploited as an active target, in order to obtain excellent acceptance and resolution data for K- nuclear capture on H, 4He, 9Be and 12C, both at-rest and in-flight.

Published
2018

55. Detector setup of the VIP2 underground experiment at LNGS

Author

S. Di Matteo, Johann Marton, Florin Sirghi, M. Bazzi, Sergio Bartalucci, Matthias Laubenstein, L. De Paolis, Alessandro Scordo, Catalina Curceanu, A. M. Bragadireanu, Michael Cargnelli, Dorel Pietreanu, Edoardo Milotti, Marco Miliucci, Hexi Shi, Johann Zmeskal, D. L. Sirghi, Sergio Bertolucci, A. Pichler, Laura Sperandio, O. Vazquez Doce, E. Widmann, Hebatalla Elnaggar, Alberto Clozza, M. Iliescu, J.-P. Egger, K. Piscicchia, C. Guaraldo, Marton, J., Pichler, A., Shi, H., Milotti, E., Bartalucci, S., Bazzi, M., Bertolucci, S., Bragadireanu, A. M., Cargnelli, M., Clozza, A., Curceanu, C., De Paolis, L., Di Matteo, S., Egger, J. -P., Elnaggar, H., Guaraldo, C., Iliescu, M., Laubenstein, M., Miliucci, M., Pietreanu, D., Piscicchia, K., Scordo, A., Sirghi, D. L., Sirghi, F., Sperandio, L., Vazquez Doce, O., Widmann, E., Zmeskal, J., Stefan Meyer Institut für subatomare Physik (SMI), Osterreichische Akademie der Wissenschaften (ÖAW), Dipartimento di Fisica [Trieste], Università degli studi di Trieste = University of Trieste, Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Dipartimento di Fisica e Astronomia [Bologna], Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Université de Neuchâtel (UNINE), Utrecht University [Utrecht], Foundational Questions Institute, FQXiAustrian Science Fund, FWF P 30635-N36, W 1252-N27John Templeton Foundation, JTF 58158Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Centro Fermi, Università degli studi di Trieste, Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Silicon, 29.40.Gx, Physics::Instrumentation and Detectors, 29.40.Cs, FOS: Physical sciences, chemistry.chemical_element, Cosmic ray, 02 engineering and technology, Scintillator, 01 natural sciences, 7. Clean energy, SDD, 010305 fluids & plasmas, symbols.namesake, Pauli exclusion principle, Optics, Silicon photomultiplier, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Underground experiment, Instrumentation, Nuclear and High Energy Physic, Physics, [PHYS]Physics [physics], Quantum Physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], SDDs, chemistry, X-ray spectroscopy, Electromagnetic shielding, symbols, 020201 artificial intelligence & image processing, Quantum Physics (quant-ph), business, Energy (signal processing)
Abstract

International audience; The VIP2 experiment tests the Pauli Exclusion Principle with high sensitivity, by searching for Pauli-forbidden atomic transitions from the 2p to the 1s shell in copper at about 8keV. The transition energy of Pauli-forbidden Kα X-rays is shifted by about 300 eV with respect to the normal allowed Kα line. This energy difference can be resolved using Silicon Drift Detectors. The data for this experiment is taken in the Gran Sasso underground laboratory (LNGS), which provides shielding from cosmic radiation. An overview of the detection system of the VIP2 experiment will be given. This includes the Silicon Drift Detectors used as X-ray detectors which provide an energy resolution of around 150 eV at 6 keV and timing information for active shielding. Furthermore, the low maintenance requirement makes them excellent X-ray detectors for the use in an underground laboratory. The VIP2 setup will be discussed which consists of a high current target system and a passive as well as an active shielding system using plastic scintillators read out by Silicon Photomultipliers. © 2018 Elsevier B.V.

Published
2018

56. A new silicon drift detector system for kaonic atom measurements

Author

D. Bosnar, K. Piscicchia, M. Iwasaki, Mohamad Bazzi, A. Dawood Butt, S. Aikawa, J. Marton, P. Levi Sandri, Carlo Fiorini, Marco Miliucci, Johann Zmeskal, A. M. Bragadireanu, Florin Sirghi, M. Cargnelli, C. Guaraldo, Alessandro Scordo, T. Hashimoto, Shigeru Ishimoto, Hexi Shi, Shinji Okada, Laura Fabbietti, Catalina Curceanu, Yue Ma, C. Trippl, O. Vazquez Doce, Paweł Moskal, M. Sato, D. Sirghi, S. R. Hayano, Fuminori Sakuma, G. Bellotti, H. Outa, D. Pietreanu, M. Iliescu, Hiroyuki Noumi, A. Spallone, E. Widmann, F. Ghio, H. Ohnishi, Carolina Berucci, A. Amirkhani, and R. Del Grande

Subjects
Physics, History, Silicon drift detector, Silicon, 010308 nuclear & particles physics, Hadron, Detector, Measure (physics), X-ray detector, chemistry.chemical_element, 01 natural sciences, ddc, Computer Science Applications, Education, Nuclear physics, Physics and Astronomy (all), Deuterium, chemistry, 0103 physical sciences, Atom, 010306 general physics
Abstract

The kaonic deuterium measurement at J-PARC and DAΦNE will provide a piece of information still missing to the antikaon-nucleon interaction close to threshold, providing valuable information to answer one of the most fundamental problems in hadron physics today - to the yet unsolved puzzle of how the hadron mass is generated. For this a new X-ray detector system has been developed to measure the shift and width of the 2p → 1s transition of kaonic deuterium with a precision of 60 eV and 140 eV, respectively.

Published
2018

57. The kaonic atoms research program at DA$\Phi$NE : from SIDDHARTA to SIDDHARTA-2

Author

D. Pietreanu, Florin Sirghi, Carolina Berucci, Laura Fabbietti, A. M. Bragadireanu, D. Bosnar, M. Cargnelli, E. Widmann, M. Iliescu, Hexi Shi, K. Piscicchia, Paweł Moskal, O. Vazquez Doce, Catalina Curceanu, A. Amirkhani, A. Spallone, Mohamad Bazzi, A. Dawood Butt, G. Bellotti, Magdalena Skurzok, J. Marton, R. Del Grande, P. Levi Sandri, Marco Miliucci, Johann Zmeskal, Carlo Fiorini, Motoki Iwasaki, F. Ghio, Ryugo S. Hayano, Michał Silarski, C. Guaraldo, Alessandro Scordo, D. Sirghi, and H. Tatsuno

Subjects
Physics, 010308 nuclear & particles physics, Kaonic hydrogen, QC1-999, Hadron, Strong interaction, Nuclear Theory, Electron, Strangeness, 7. Clean energy, 01 natural sciences, law.invention, Nuclear physics, Deuterium, law, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Physics::Atomic Physics, 010306 general physics, Nucleon, Collider, Nuclear Experiment
Abstract

The interaction of antikaons with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics with still many important open questions. The investigation of light kaonic atoms, in which one electron is replaced by a negatively charged kaon, is a unique tool to provide precise information on this interaction; the energy shift and the broadening of the low-lying states of such atoms, induced by the kaon-nucleus hadronic interaction, can be determined with high precision from the atomic X-ray spectroscopy, and this experimental method provides unique information to understand the low energy kaon-nucleus interaction at the production threshold. The lightest atomic systems, like the kaonic hydrogen and the kaonic deuterium deliver, in a model-independent way, the isospin-dependent kaon-nucleon scattering lengths. The most precise kaonic hydrogen measurement to-date, together with an exploratory measurement of kaonic deuterium, were carried out in 2009 by the SIDDHARTA collaboration at the DAΦNE electron-positron collider of LNF-INFN, combining the excellent quality kaon beam delivered by the collider with new experimental techniques, as fast and very precise X-ray detectors, like the Silicon Drift Detectors. The SIDDHARTA results triggered new theoretical work, which achieved major progress in the understanding of the low-energy strong interaction with strangeness reflected by the antikaon-nucleon scattering lengths calculated with the antikaon-proton amplitudes constrained by the SIDDHARTA data. The most important open question is the experimental determination of the hadronic energy shift and width of kaonic deuterium; presently, a major upgrade of the setup, SIDDHARTA-2, is being realized to reach this goal. In this paper, the results obtained in 2009 and the proposed SIDDHARTA-2 upgrades are presented.

Published
2018

58. Underground Test of Quantum Mechanics: The VIP2 Experiment

Author

Sergio Bartalucci, J.-P. Egger, Mario Bragadireanu, L. De Paolis, Matthias Laubenstein, Angelo Bassi, Florin Sirghi, Alessandro Scordo, Hexi Shi, Edoardo Milotti, Johann Marton, A. Pichler, M. Bazzi, Alberto Clozza, C. Guaraldo, Laura Sperandio, Sandro Donadi, Sergio Bertolucci, E. Widmann, Carolina Berucci, Diana Sirghi, K. Piscicchia, Catalina Curceanu, J. Zmeskal, S. Di Matteo, M. Iliescu, D. Pietreanu, Michael Cargnelli, O. Vazquez-Doce, Andrei Khrennikov, Bourama Toni, Marton, Johann, Bartalucci, S., Bassi, A., Bazzi, M., Bertolucci, S., Berucci, C., Bragadireanu, M., Cargnelli, M., Clozza, A., Curceanu, C., De Paolis, L., Di Matteo, S., Donadi, S., Egger, J. -P., Guaraldo, C., Iliescu, M., Laubenstein, M., Milotti, E., Pichler, A., Pietreanu, D., Piscicchia, K., Scordo, A., Shi, H., Sirghi, D., Sirghi, F., Sperandio, L., Vazquez-Doce, O., Widmann, E., and Zmeskal, J.

Subjects
Physics - Instrumentation and Detectors, Pauli Exclusion Principle, Quantum Mechanics, Symmetries in Physics, FOS: Physical sciences, Electron, 01 natural sciences, symbols.namesake, Pauli exclusion principle, quant-ph, Quantum mechanics, 0103 physical sciences, Atom, Circulating current, Detectors and Experimental Techniques, 010306 general physics, physics.ins-det, General Theoretical Physics, Physics, Quantum Physics, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), Quantum Mechanic, Underground laboratory, symbols, Quantum Physics (quant-ph), Wave function collapse
Abstract

We are experimentally investigating possible violations of standard quantum mechanics predictions in the Gran Sasso underground laboratory in Italy. We test with high precision the Pauli exclusion principle and the collapse of the wave function (collapse models). We present our method of searching for possible small violations of the Pauli exclusion principle (PEP) for electrons, through the search for anomalous X-ray transitions in copper atoms, produced by fresh electrons (brought inside the copper bar by circulating current) which could have a non-zero probability to undergo Pauli-forbidden transition to the 1s level already occupied by two electrons, and we describe the VIP2 (Violation of PEP) experiment under data taking at the Gran Sasso underground laboratories. In this paper the new VIP2 setup installed in the Gran Sasso underground laboratory will be presented. The goal of VIP2 is to test the PEP for electrons with unprecedented accuracy, down to a limit in the probability that PEP is violated at the level of 10−31. We show preliminary experimental results and discuss implications of a possible violation.

Published
2018

59. A charged particle veto detector for kaonic deuterium measurements at DAΦNE

Author

K. Piscicchia, Michael Cargnelli, D. Bosnar, L. De Paolis, A. Amirkhani, C. Guaraldo, Johann Marton, Hexi Shi, M. Bazzi, J. Zmeskal, G. Bellotti, E. Widmann, A. Dawood Butt, M. Iliescu, Alessandro Scordo, Magdalena Skurzok, Marco Miliucci, Carlo Fiorini, A. Spallone, Florin Sirghi, O. Vazquez Doce, Laura Fabbietti, M. Iwasaki, D. Pietreanu, Diana Sirghi, F. Ghio, P. Levi Sandri, Paweł Moskal, Catalina Curceanu, A. M. Bragadireanu, R. Del Grande, Ryugo S. Hayano, M. Tüchler, Michał Silarski, and Carolina Berucci

Subjects
Nuclear physics, Physics, History, Physics and Astronomy (all), Deuterium, Detector, Veto, X-ray detector, Time resolution, Charged particle, ddc, Computer Science Applications, Education
Published
2018

60. Measurement of the strong interaction induced shift and width of the 1s state of kaonic deuterium at J-PARC

Author

Toshihiko Hiraiwa, G. Beer, H. Tatsuno, Paul Buehler, Haruhiko Outa, Ken Suzuki, Alessandro Scordo, E. Sbardella, O. Vazquez Doce, Kristian Piscicchia, P. Levi Sandri, Massimiliano Bazzi, M. Cargnelli, Johann Zmeskal, Kenta Itahashi, M. Iliescu, I. Tucakovic, Robin Golser, J. Marton, A. d'Uffizi, Y. Sada, Hiroyuki Noumi, Ryugo S. Hayano, M. Poli Lener, M. Iwai, Fuminori Sakuma, M. Sato, T. Ishiwatari, K. Inoue, Hiroaki Ohnishi, Michiko Sekimoto, Makoto Tokuda, S. Ishimoto, Johannes Lachner, Hiroyuki Fujioka, Kyo Tsukada, O. Morra, D. L. Sirghi, F. Ghio, Damir Bosnar, Akihisa Toyoda, Alberto Clozza, Tomofumi Nagae, A. Romero Vidal, Hyoungchan Bhang, Yue Ma, Qi Zhang, L. Busso, Toshimitsu Yamazaki, C. Guaraldo, C. Berucci, T. Yamaga, Florin Sirghi, Shoji Suzuki, Shun Enomoto, D. Faso, Eberhard Widmann, Masahiko Iwasaki, Atsushi Sakaguchi, M. Bragadireanu, Michał Silarski, Yutaka Mizoi, Yasuyuki Matsuda, L. Fabbietti, S. Kawasaki, D. Pietreanu, S. Choi, Shinji Okada, Catalina Curceanu, Paweł Moskal, Hexi Shi, Takatoshi Suzuki, Carlo Fiorini, S. Ajimura, Masami Iio, Kiyoshi Tanida, and T. Hashimoto

Subjects
Physics - Instrumentation and Detectors, Kaonic hydrogen, Strong interaction, Nuclear Theory, FOS: Physical sciences, antikaon–nucleon interaction, low-energy QCD, General Physics and Astronomy, Context (language use), chiral symmetry breaking, kaonic deuterium, Physics and Astronomy (all), sezele, Nuclear physics, Physics and Astronomy (all), Atom, Physics::Atomic Physics, Nuclear Experiment (nucl-ex), Nuclear Experiment, Physics, Quantum chromodynamics, sezele, Instrumentation and Detectors (physics.ins-det), NATURAL SCIENCES. Physics, 3. Good health, PRIRODNE ZNANOSTI. Fizika, Deuterium, Isospin, Chiral symmetry breaking
Abstract

The antikaon-nucleon interaction close to threshold provides crucial information on the interplay between spontaneous and explicit chiral symmetry breaking in low-energy QCD. In this context the importance of kaonic deuterium X-ray spectroscopy has been well recognized, but no experimental results have yet been obtained due to the difficulty of the measurement. We propose to measure the shift and width of the kaonic deuterium 1s state with an accuracy of 60 eV and 140 eV respectively at J-PARC. These results together with the kaonic hydrogen data (KpX at KEK, DEAR and SIDDHARTA at DAFNE) will then permit the determination of values of both the isospin I=0 and I=1 antikaon-nucleon scattering lengths and will provide the most stringent constraints on the antikaon-nucleon interaction, promising a breakthrough. Refined Monte Carlo studies were performed, including the investigation of background suppression factors for the described setup. These studies have demonstrated the feasibility of determining the shift and width of the kaonic deuterium atom 1s state with the desired accuracy of 60 eV and 140 eV., 12 pages, 9 figures

Published
2015

61. VIP2 at Gran Sasso - Test of the validity of the spin statistics theorem for electrons with X-ray spectroscopy

Author

C. Berucci, Dorel Pietreanu, Johann Zmeskal, Matthias Laubenstein, Massimiliano Bazzi, Sergio Bartalucci, M. Bragadireanu, Eberhard Widmann, Catalina Curceanu, D. L. Sirghi, Hexi Shi, L. De Paolis, M. Iliescu, Alessandro Scordo, J.-P. Egger, Sergio Bertolucci, Florin Sirghi, S. Di Matteo, Michael Cargnelli, O. Vazquez-Doce, Kristian Piscicchia, Alberto Clozza, C. Guaraldo, Edoardo Milotti, Laura Sperandio, Johann Marton, A. Pichler, Stefan Meyer Institut für subatomare Physik (SMI), Laboratori Nazionali di Frascati (LNF), Istituto Nazionale di Fisica Nucleare (INFN), Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Université de Neuchâtel (UNINE), Laboratori Nazionali del Gran Sasso (LNGS), Università degli studi di Trieste, Horia Hulubei National Institute for Physics and Nuclear Engineering, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Foundational Questions Institute, FQXiAustrian Science Fund, FWF: P25529-N20, W1252-N27John Templeton Foundation, JTF: 58158CA 15220, Clark K.Jillings C.Kraus C.Saffin J.Scorza S., Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Università degli studi di Trieste = University of Trieste, Marton, J., Pichler, A., Bartalucci, S., Bazzi, M., Bertolucci, S., Berucci, C., Bragadireanu, M., Cargnelli, M., Clozza, A., Curceanu, C., Paolis, L. D., Matteo, S. D., Egger, J. -P., Guaraldo, C., Iliescu, M., Laubenstein, M., Milotti, E., Pietreanu, D., Piscicchia, K., Scordo, A., Shi, H., Sirghi, D., Sirghi, F., Sperandio, L., Vazquez-Doce, O., Widmann, E., and Zmeskal, J.

Subjects
electron, History, Physics - Instrumentation and Detectors, experimental methods, Underground laboratory, X-ray: irradiation, High-precision, Electron, 01 natural sciences, wave function: collapse, Limit (mathematics), Wave function, Wave functions, Physics, [PHYS]Physics [physics], Quantum Physics, symmetry: violation, quantum mechanics, Spin–statistics theorem, Instrumentation and Detectors (physics.ins-det), Pauli principle, Computer Science Applications, symbols, Ground state, Particle physics, spin: statistics, FOS: Physical sciences, Electrons, Education, Pauli exclusion principle, symbols.namesake, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Pauli, 010306 general physics, X-ray spectroscopy, Forbidden transitions, quantum physics, experimental tests, 010308 nuclear & particles physics, X ray spectroscopy, Spin statistics theorems, deep underground detector, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], quantum physic, Gran Sasso, copper: target, X ray transitions, High Energy Physics::Experiment, Wave function collapse, Circulating current, Quantum Physics (quant-ph), Copper
Abstract

In the VIP2 (VIolation of the Pauli Exlusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) we are searching for possible violations of standard quantum mechanics predictions. With high precision we investigate the Pauli Exclusion Principle and the collapse of the wave function (collapse models). We will present our experimental method of searching for possible small violations of the Pauli Exclusion Principle for electrons, via the search for "anomalous" X-ray transitions in copper atoms, produced by "new" electrons (brought inside a copper bar by circulating current) which could have the probability to undergo Pauli-forbidden transition to the ground state (1 s level) already occupied by two electrons. We will describe the concept of the VIP2 experiment taking data at LNGS presently. The goal of VIP2 is to test the PEP for electrons with unprecedented accuracy, down to a limit in the probability that PEP is violated at the level of 10$^{-31}$. We will show preliminary experimental results obtained at LNGS and discuss implications of a possible violation., Comment: Proceedings TAUP 2017

Published
2017

62. Kaonic-Atom X-ray Spectroscopy with Superconducting Microcalorimeters

Author

James P. Hays-Wehle, Gene C. Hilton, Florin Sirghi, Ryugo S. Hayano, H. Tatsuno, Shinya Yamada, Makoto Tokuda, Joseph W. Fowler, K. Piscicchia, T. Yamazaki, Fuminori Sakuma, Shinji Okada, M. Iwasaki, D. Bosnar, Y. Sada, D. S. Swetz, Kiyoshi Tanida, Galen C. O'Neil, Carl D. Reintsema, D. Sirghi, Hexi Shi, F. Parnefjord Gustafsson, M. Sato, Alessandro Scordo, Kunio Suzuki, T. Hashimoto, Toshihiko Hiraiwa, Catalina Curceanu, K. Itahashi, M. Sekimoto, Shigeru Ishimoto, Hiroaki Ohnishi, Carolina Berucci, Hiroyuki Fujioka, Jens Uhlig, Mohamad Bazzi, Joel N. Ullom, Masami Iio, Johann Zmeskal, M. Iliescu, C. Guaraldo, H. Outa, Douglas A. Bennett, Hiroyuki Noumi, William B. Doriese, Yue Ma, and D. R. Schmidt

Subjects
Physics, X-ray spectroscopy, Spectrometer, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Resolution (electron density), Hadron, chemistry.chemical_element, 01 natural sciences, Nuclear physics, chemistry, 0103 physical sciences, Atom, Physics::Atomic Physics, J-PARC, Nuclear Experiment, 010306 general physics, Spectroscopy, Helium
Abstract

We will measure kaonic helium X-rays using transition-edge-sensor microcalorimeters, TES, in the J-PARC hadron experimental facility. To demonstrate the feasibility of the experiment, we performed a measurement of pionic carbon X-rays at PSI, where an excellent FWHM energy resolution of 7 eV at 6.4 keV was achieved. We also evaluated the expected TES performance in the kaon beam at J-PARC. The simulation results show that the TES spectrometer would work with a good energy resolution, and clear peaks of kaonic helium X-rays would be observed on a reasonably suppressed background.

Published
2017

63. Strangeness in the Universe? Low-Energy Kaon-Nuclei Interaction Studies with AMADEUS at the DAΦNE Collider

Author

Hexi Shi, Florin Sirghi, A. Romero Vidal, Catalina Curceanu, G. Bellotti, Carolina Berucci, P. Levi Sandri, Johann Zmeskal, M. Iliescu, R. Del Grande, Laura Fabbietti, Alberto Clozza, Johann Marton, K. Piscicchia, O. Vazquez Doce, E. Widmann, A. Dawood Butt, C. Guaraldo, Carlo Fiorini, D. Bosnar, I. Tucakovic, M. Bazzi, F. Ghio, Alessandro Scordo, A. M. Bragadireanu, D. Pietreanu, Michael Cargnelli, and Diana Sirghi

Subjects
Interaction studies, Nuclear physics, Physics, Particle physics, Low energy, law, Strangeness, Collider, law.invention
Published
2017

64. Spectroscopic Study of Hyperon Resonace Below \(\bar{K}\)N Threshold via the d(K−, n) Reaction

Author

C. Guaraldo, Johann Marton, M. Sekimoto, O. Morra, Shun Enomoto, M. Poli Lener, Ryugo S. Hayano, J. Zmeskal, Michael Cargnelli, A. Scorde, Haruhiko Outa, B. K. Wuenschek, P. Kienle, Makoto Tokuda, Mario Bragadireanu, K. Inoue, Florin Sirghi, Shinji Okada, M. Iwasaki, Aya Sakaguchi, Akihiro Toyoda, T. Hashimoto, H. Yim, Hiroyuki Noumi, Hiroaki Ohnishi, T. Yamazaki, Paul Buehler, K. Piscicchia, M. Iliescu, S. Ishimoto, H. Kou, Y. Kato, Y. Mizoi, Toshihiko Hiraiwa, Catalina Curceanu, E. Widmann, O. Vazquez Doce, Yasuhiro H. Matsuda, D. Faso, Tomokazu Fukuda, Y. Sada, Y. Fujiwara, K. Tanida, K. Shirotori, S. Ajimura, Masami Iio, Ken Suzuki, D. Tomono, K. Itahashi, Tomofumi Nagae, H. C. Bhang, G. A. Beer, Yue Ma, Fuminori Sakuma, L. Busso, Y. Ishiguro, S. Y. Suzuki, Q. Zhang, T. Suzuki, Hexi Shi, M. Iwai, Masatoshi Sato, T. Ishiwatari, H. Tatsuno, S. Choi, T. Yamaga, T. Ishikawa, Diana Sirghi, A. Romero Vidal, K. Tsukada, S. Kawasaki, and H. Fujioka

Subjects
Physics, 010308 nuclear & particles physics, 0103 physical sciences, Hyperon, Analytical chemistry, 010306 general physics, 01 natural sciences, Bar (unit)
Published
2017

65. Quantum mechanics under X-rays in the Gran Sasso underground laboratory

Author

Matthias Laubenstein, Johann Marton, A. Pichler, Edoardo Milotti, Jean Pierre Egger, Diana Sirghi, Mario Bragadireanu, Laura Sperandio, Marco Miliucci, Angelo Bassi, Sergio Bartalucci, Johann Zmeskal, C. Guaraldo, Sandro Donadi, Oton Vazquez Doce, Michael Cargnelli, Florin Sirghi, Sergio Di Matteo, Hexi Shi, Catalina Curceanu, M. Iliescu, Alessandro Scordo, Massimiliano Bazzi, Luca De Paolis, Alberto Clozza, Kristian Piscicchia, Sergio Bertolucci, Dorel Pietreanu, Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Curceanu, C., Sirghi, D., Sirghi, F., Bartalucci, S., Bazzi, M., Clozza, A., De Paolis, L., Guaraldo, C., Iliescu, M., Miliucci, M., Pietreanu, D., Scordo, A., Shi, H., Sperandio, L., Bassi, A., Donadi, S., Milotti, E., Bertolucci, S., Bragadireanu, M., Cargnelli, M., Marton, J., Pichler, A., Zmeskal, J., Di Matteo, S., Egger, J. P., Laubenstein, M., Piscicchia, K., Doce, O. V., and Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)

Subjects
electron, radiation detector, Physics and Astronomy (miscellaneous), Measurement problem, collapse models, Electron, Parameter space, 01 natural sciences, Bayesian, Particle detector, localization, symbols.namesake, Pauli exclusion principle, radiation detectors, Quantum mechanics, 0103 physical sciences, X-rays, model: collapse, X-ray: emission, collapse model, Pauli, 010306 general physics, Physics, Spin-statistics, COSMIC cancer database, 010308 nuclear & particles physics, Spin-statistic, quantum mechanics, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], Gran Sasso, Underground laboratory, symbols, measurement theory, Order of magnitude
Abstract

International audience; By performing X-ray measurements in the “cosmic silence” of the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli Exclusion Principle (PEP) for electrons. We present the achieved results of the VIP experiment and the ongoing VIP2 measurement aiming to gain two orders of magnitude improvement in testing PEP. X-ray emission can also be used to put strong constraints on the parameters of the Continuous Spontaneous Localization Model, which was introduced as a possible solution to the measurement problem in Quantum Mechanics. A Bayesian analysis of the data collected by IGEX will be presented, which allows to exclude a broad region of the parameter space which characterizes this model.

Published
2017

66. Spectroscopic Experiment of Λ(1405) via the In-flight d(K−, n) Reaction at J-PARC K1.8BR

Author

H. C. Bhang, C. Guaraldo, M. Iliescu, M. Sekimoto, Tomokazu Fukuda, T. Hashimoto, S. Ishimoto, Florin Sirghi, E. Widmann, H. Tatsuno, M. Iwasaki, S. Ajimura, T. Suzuki, Masami Iio, S. Choi, T. Yamaga, K. Tanida, Ken Suzuki, Shinji Okada, S. Kawasaki, Makoto Tokuda, Atsushi Sakaguchi, Yue Ma, H. Fujioka, Michael Cargnelli, H. Kou, T. Yamazaki, Mario Bragadireanu, G. A. Beer, Paul Buehler, H. Yim, Tomofumi Nagae, Yuuki Fujiwara, M. Tomono, Haruhiko Outa, Hexi Shi, K. Inoue, Masatoshi Sato, K. Tsukada, Hiroyuki Noumi, S. Y. Suzuki, Akihiro Toyoda, D. Faso, K. Itahashi, D. Pietreanu, L. Busso, T. Ishikawa, Catalina Curceanu, Johann Zmeskal, Y. Sada, K. Shirotori, P. Kienlep, H. Mizoi, Johann Marton, Diana Sirghi, Fuminori Sakuma, Hiroaki Ohnishi, M. Iwai, Q. Zhang, Yasuhiro H. Matsuda, Ryugo S. Hayano, Toshihiko Hiraiwa, K. Yoshida, Shun Enomoto, and O. Morra

Subjects
Physics, Analytical chemistry, J-PARC
Published
2017

67. Beamline test of a transition-edge-sensor spectrometer in preparation for kaonic-atom measurements

Author

Galen C. O'Neil, Joseph W. Fowler, William B. Doriese, Joel N. Ullom, K. Itahashi, Yue Ma, F. Parnefjord Gustafsson, Yoshitaka Ishisaki, M. Sato, Mohamad Bazzi, Toshihiko Hiraiwa, Michiko Sekimoto, H. Outa, M. Iliescu, Ken Suzuki, Ryugo S. Hayano, Hiroyuki Noumi, C. Guaraldo, H. Tatsuno, Gene C. Hilton, D. S. Swetz, Douglas A. Bennett, Carolina Berucci, D. R. Schmidt, Johann Zmeskal, Carl D. Reintsema, Shigeru Ishimoto, Hiroyuki Fujioka, Masami Iio, Shinya Yamada, Makoto Tokuda, Yuto Ichinohe, D. Sirghi, R. Hayakawa, Jens Uhlig, Shinji Okada, T. Yamazaki, Y. Sada, James P. Hays-Wehle, D. Bosnar, Florin Sirghi, Catalina Curceanu, Hirofumi Noda, Hexi Shi, K. Piscicchia, M. Iwasaki, Kiyoshi Tanida, Alessandro Scordo, T. Hashimoto, Fuminori Sakuma, and Hiroaki Ohnishi

Subjects
Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, X-ray detector, 01 natural sciences, law.invention, Nuclear physics, law, 0103 physical sciences, Atom, Physics::Atomic Physics, Electrical and Electronic Engineering, 010306 general physics, Spectroscopy, Nuclear Experiment, Exotic atom, Physics, Spectrometer, 010308 nuclear & particles physics, Particle accelerator, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, particle beams, superconducting photodetectors, X-ray detectors, Beamline, Transition edge sensor, Atomic physics
Abstract

—We are developing a new technique to apply transition-edge sensors (TESs) to X-ray spectroscopy of exotic atoms, especially of kaonic atoms. To demonstrate the feasibility of this pioneering project, performance of a TES-based X-ray detector was evaluated in pion- and kaon-beam environments at particle accelerators. We successfully observed X- rays from pionic-carbon atoms with a resolution as good as 7 eV FWHM at 6 keV. Also at a kaon beamline, we confirmed that the TES spectrometer will be able to achieve our resolution goal, 6 eV, in our first scientific campaign to measure X-rays from kaonic- helium atoms.

Published
2017

68. Low-energy Kaon–Nuclei Interaction Studies at DAΦNE: SIDDHARTA-2 and AMADEUS

Author

Alessandro Scordo, P. Levi Sandri, H. Tatsuno, Johann Zmeskal, Laura Fabbietti, Florin Sirghi, Carolina Berucci, Mohamad Bazzi, Hexi Shi, A. Dawood Butt, M. Cargnelli, D. Pietreanu, Carlo Fiorini, A. M. Bragadireanu, C. Guaraldo, Magdalena Skurzok, J. Marton, R. Del Grande, Catalina Curceanu, Marco Miliucci, Damir Bosnar, Michał Silarski, Paweł Moskal, O. Vazquez Doce, E. Widmann, Ryugo S. Hayano, D. Sirghi, M. Iwasaki, F. Ghio, K. Piscicchia, G. Bellotti, M. Iliescu, and A. Amirkhani

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, General Physics and Astronomy, 01 natural sciences, NATURAL SCIENCES. Physics, law.invention, Interaction studies, Nuclear physics, PRIRODNE ZNANOSTI. Fizika, Physics and Astronomy (all), Low energy, law, 0103 physical sciences, Physics::Accelerator Physics, 010306 general physics, Collider, Nuclear Experiment
Abstract

The DAΦNE electron–positron collider of the Laboratori Nazionali di Frascati of INFN has made available a unique quality low-energy negatively charged kaons “beam”, which is being used to study the kaon–nucleon/nuclei interactions by the SIDDHARTA-2 experiment and the AMADEUS Collaboration. The dynamics of the strong interaction processes in the non-perturbative regime is approached by lattice calculations and effective field theories (ChPT) which are still lacking experimental results in the low-energy regime, fundamental for their good understanding. The studies of kaonic atoms and of the kaonic nuclear processes performed by SIDDHARTA-2 and AMADEUS play in this context a key-role.

Published
2017

69. VOXES, a new high resolution X-ray spectrometer for low yield measurements with diffused sources

Author

Alessandro Scordo, M. Miliucci, Florin Sirghi, Catalina Curceanu, Johann Zmeskal, and Hexi Shi

Subjects
Physics, X-ray spectroscopy, Physics - Instrumentation and Detectors, Spectrometer, 010308 nuclear & particles physics, 010401 analytical chemistry, Detector, Resolution (electron density), General Physics and Astronomy, Synchrotron radiation, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, 0104 chemical sciences, Computational physics, law.invention, law, 0103 physical sciences, Collider, Energy (signal processing), Exotic atom
Abstract

The VOXES project's goal is to realize the first prototype of a high resolution and high precision X-ray spectrometer for diffused sources, using Highly Annealed Pyrolitic Graphite (HAPG) crystals combined with precision position detectors. The aim is to deliver a cost effective and easy to handle system having an energy resolution at the level of few eV for X-ray energies from about 2 keV up to tens of keV. There are many applications of the proposed spectrometer, going from fundamental physics (precision measurements of exotic atoms at DA$\Phi$NE collider and J-PARC, precision measurement of the $K^-$ mass solving the existing puzzle, quantum mechanics tests) to synchrotron radiation and applications (X-FEL), astronomy, medicine and industry. Here, the basic concept of such a spectrometer and the first results from a measurement of the characteristic Cu $K_{\alpha 1}$ and $K_{\alpha 2}$ X-ray lines are presented., Comment: 7 pages, 2 figures, Presented at 2 nd Jagiellonian Symposium on Fundamental and Applied Subatomic Physics

Published
2017
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70. Experimental studies of the kaon-nucleus interaction at low energy with x-ray spectroscopy of kaonic atoms

Author

Carolina Berucci, Michael Cargnelli, C. Guaraldo, J. Zmeakal, Ryugo S. Hayano, D. Bosnar, I. Tucakovic, M. Bazzi, K. Piscicchia, Florin Sirghi, Shinji Okada, O. Vazquez Doce, A. M. Bragadireanu, D. Pietreanu, R. Del Grande, A. Romero Vidal, M. Iliescu, Marco Miliucci, S. Wycech, M. Iwasaki, G. A. Beer, Carlo Fiorini, L. Fabietti, P. Levi Sandri, G. Bellotti, A. D. Butt, Hexi Shi, Johann Marton, Eberhard Widmann, Alessandro Scordo, Catalina Curceanu, F. Ghio, H. Tatsuno, T. Ishiwatari, and Diana Sirghi

Subjects
Physics, History, X-ray spectroscopy, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Electron, 01 natural sciences, Computer Science Applications, Education, Nuclear physics, Physics and Astronomy (all), medicine.anatomical_structure, Low energy, 0103 physical sciences, Energy shift, medicine, High Energy Physics::Experiment, Physics::Atomic Physics, Atomic physics, Nuclear Experiment, 010306 general physics, Spectroscopy, Nucleus, Exotic atom
Abstract

In the exotic atoms in which one electron is replaced by a negatively charged kaon, the kaon-nucleus hadronic interaction introduces an energy shift and broadening of the low-lying states of the kaonic atoms. The shift and width can be determined with high precision from the atomic x-ray spectroscopy, and this experimental method provides unique information to understand the low energy kaon-nucleus interaction at the production threshold.

Published
2017

71. Test of the Pauli Exclusion Principle in the VIP-2 Underground Experiment

Author

Mario Bragadireanu, Diana Sirghi, Massimiliano Bazzi, Florin Sirghi, Johann Zmeskal, Marco Miliucci, Luca De Paolis, Sergio Di Matteo, C. Guaraldo, Edoardo Milotti, Oton Vazquez Doce, Kristian Piscicchia, Matthias Laubenstein, Dorel Pietreanu, Alberto Clozza, Eberhard Widmann, Laura Sperandio, Alessandro Scordo, M. Iliescu, Sergio Bertolucci, Johann Marton, Michael Cargnelli, A. Pichler, J. P. Egger, Hexi Shi, Sergio Bartalucci, Catalina Curceanu, Carolina Berucci, Laboratori Nazionali di Frascati dell’INFN, Istituto Nazionale di Fisica Nucleare (INFN), Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Austrian Science Foundation (FWF) [P25529-N20], EU COST Action [CA15220], Centro Fermi (' Problemi aperti nella meccania quantistica' project), John Templeton Foundation [58158], Curceanu, Catalina, Shi, Hexi, Bartalucci, Sergio, Bertolucci, Sergio, Bazzi, Massimiliano, Berucci, Carolina, Bragadireanu, Mario, Cargnelli, Michael, Clozza, Alberto, De Paolis, Luca, Di Matteo, Sergio, Egger, Jean Pierre, Guaraldo, Carlo, Iliescu, Mihail, Marton, Johann, Laubenstein, Matthia, Milotti, Edoardo, Miliucci, Marco, Pichler, Andrea, Pietreanu, Dorel, Piscicchia, Kristian, Scordo, Alessandro, Sirghi, Diana, Sirghi, Florin, Sperandio, Laura, Vazquez Doce, Oton, Widmann, Eberhard, Zmeskal, Johann, and Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)

Subjects
quantum foundation, Particle physics, Physics - Instrumentation and Detectors, FOS: Physical sciences, General Physics and Astronomy, Electron, x-ray spectroscopy, 01 natural sciences, Pauli exclusion principle, symbols.namesake, silicon drift detector, 0103 physical sciences, Limit (mathematics), 010306 general physics, Quantum, Physics, [PHYS]Physics [physics], Quantum Physics, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), quantum foundations, X-ray spectroscopy, underground experiment, symbols, Orbit (control theory), Quantum Physics (quant-ph), Ground state, pauli exclusion principle
Abstract

The validity of the Pauli Exclusion Principle, a building block of Quantum Mechanics, is tested for electrons. The VIP (VIolation of Pauli exclusion principle) and its follow-up VIP-2 experiments at the Laboratori Nazionali del Gran Sasso search for x-rays from copper atomic transition that are prohibited by the Pauli Exclusion Principle. The candidate events, if they exist, originate from the transition of a $2p$ orbit electron to the ground state which is already occupied by two electrons. The present limit on the probability for Pauli Exclusion Principle violation for electrons set by the VIP experiment is 4.7 $\times$ 10 $^{-29}$. We report a first result from the VIP-2 experiment improving on the VIP limit, that solidifies the final goal to achieve a two order of magnitude gain in the long run., Comment: 6 pages, 3 figures. Submitted to journal Entropy special issue: "Quantum Information and Foundations", 2017

Published
2017

72. Probing strong interaction with kaonic atoms : from DA$\Phi$NE to J-PARC

Author

Florin Sirghi, C. Guaraldo, R. Golser, Laura Fabbietti, I. Tucakovic, Carolina Berucci, Alessandro Scordo, A. Romero Vidal, Haruhiko Outa, K. Piscicchia, Johann Marton, Mitsuhiro Sato, G. A. Beer, E. Sbardella, D. Bosnar, P. Levi Sandri, Fuminori Sakuma, M. Iwasaki, Johann Zmeskal, Hiroaki Ohnishi, Hexi Shi, F. Ghio, A. d'Uffizi, Catalina Curceanu, Takahiro Hashimoto, Ryugo S. Hayano, M. Bazzi, Diana Sirghi, Paul Buehler, Mario Bragadireanu, O. Vazquez Doce, Shinji Okada, Paweł Moskal, K. Itahashi, D. Pietreanu, E. Widmann, Michael Cargnelli, Carlo Fiorini, Alberto Clozza, Kunio Suzuki, M. Poli Lener, and M. Iliescu

Subjects
Nuclear physics, Physics, Strong interaction, J-PARC
Published
2017

73. Search for deeply bound Kaonic nuclear states via3He(K-, n) reaction at J-PARC

Author

D. Tomono, H. Tatsuno, S. Ishimoto, Akihiro Toyoda, Makoto Tokuda, Alessandro Scordo, M. Iwasaki, Yue Ma, K. Itahashi, Shinji Okada, L. Busso, Florin Sirghi, Hiroaki Ohnishi, K. Tsukada, T. Yamazaki, Haruhiko Outa, Michael Cargnelli, K. Inoue, T. Hashimoto, Mario Bragadireanu, Tomofumi Nagae, Hiroyuki Noumi, Paul Buehler, M. Iliescu, H. Kou, Y. Kato, C. Guaraldo, S. Y. Suzuki, P. Kienle, T. Ishiwatari, Diana Sirghi, G. A. Beer, M. Sekimoto, Y. Sada, O. Vazquez Doce, Y. Ishiguro, Fuminori Sakuma, E. Widmann, O. Morra, Catalina Curceanu, Johann Marton, T. Ishikawa, M. Iwai, Johann Zmeskal, Ken Suzuki, S. Ajimura, Masami Iio, M. Poli Lener, T. Suzuki, Aya Sakaguchi, H. Yim, S. Kawasaki, Tomokazu Fukuda, Y. Mizoi, Hiroyuki Fujioka, Y. Fujiwara, A. Romero Vidal, B. K. Wuenschek, K. Tanida, H. C. Bhang, S. Choi, Shun Enomoto, T. Yamaga, Hexi Shi, Masatoshi Sato, K. Piscicchia, Q. Zhang, Yasuhiro H. Matsuda, D. Faso, Toshihiko Hiraiwa, and Ryugo S. Hayano

Subjects
Nuclear physics, Physics, Bound state, J-PARC
Published
2014

74. A search for deeply-bound kaonic nuclear states by in-flight 3He(K-, N) reaction at J-PARC

Author

Hiroaki Ohnishi, Catalina Curceanu, Diana Sirghi, Michael Cargnelli, J. Zmeskal, T. Ishiwatari, Makoto Tokuda, Toshihiko Hiraiwa, Hexi Shi, Tomofumi Nagae, K. Piscicchia, O. Morra, Masatoshi Sato, Mario Bragadireanu, S. Kawasaki, K. Tsukada, D. Faso, Fuminori Sakuma, M. Poli Lener, H. Tatsuno, T. Hashimoto, Paul Buehler, Ryugo S. Hayano, L. Busso, T. Yamaga, Kiyoshi Tanida, Y. Kato, O. Vazquez Doce, Akihiro Toyoda, S. Choi, Kenta Itahashi, Paul Kienle, C. Guaraldo, Q. Zhang, Alessandro Scordo, H. Yim, M. Iliescu, Y. Sada, A. Romero Vidal, Shun Enomoto, M. Sekimoto, Yasuyuki Matsuda, Ken Suzuki, Johann Marton, B. K. Wuenschek, T. Ishikawa, Eberhard Widmann, S. Ishimoto, G. A. Beer, Masahiko Iwasaki, Hiroyuki Fujioka, Florin Sirghi, S. Ajimura, Masami Iio, Tomokazu Fukuda, Y. Fujiwara, Hyoungchan Bhang, H. Kou, Haruhiko Outa, Atsushi Sakaguchi, Yutaka Mizoi, K. Inoue, Hiroyuki Noumi, M. Iwai, D. Tomono, Shinji Okada, Yue Ma, T. Yamazaki, Y. Ishiguro, T. Suzuki, and S. Y. Suzuki

Subjects
Nuclear physics, Physics, General Physics and Astronomy, J-PARC
Published
2014

75. X-ray Detectors for Kaonic Atoms Research at DAΦNE

Author

Shinji Okada, Hexi Shi, A. Baniahmad, Florin Sirghi, Catalina Curceanu, G. Bellotti, Carolina Berucci, Paolo Levi Sandri, Szymon Niedźwiecki, Raffaele Del Grande, Johann Zmeskal, M. Iliescu, Dorel Pietreanu, Alberto Clozza, M. Iwasaki, Marco Miliucci, A. Spallone, Johann Marton, C. Guaraldo, Pavel Moskal, A. Amirkhani, H. Tatsuno, Carlo Fiorini, Oton Vazquez Doce, Mario Bragadireanu, Kristian Piscicchia, Eberhard Widmann, Michał Silarski, Magdalena Skurzok, Massimiliano Bazzi, F. Ghio, Alessandro Scordo, Michael Cargnelli, Damir Bosnar, and Diana Sirghi

Subjects
Silicon drift detector, Kaonic hydrogen, Hadron, X-ray detector, kaonic atoms, strong interaction, X-ray detectors, 01 natural sciences, law.invention, Nuclear physics, law, 0103 physical sciences, Atom, 010306 general physics, Collider, Exotic atom, Physics, 010308 nuclear & particles physics, Condensed Matter Physics, lcsh:QC1-999, NATURAL SCIENCES. Physics, Electronic, Optical and Magnetic Materials, PRIRODNE ZNANOSTI. Fizika, Deuterium, lcsh:Physics
Abstract

This article presents the kaonic atom studies performed at the INFN National Laboratory of Frascati (Laboratori Nazionali di Frascati dell&rsquo, INFN, LNF-INFN) since the opening of this field of research at the DA &Phi, NE collider in early 2000. Significant achievements have been obtained by the DA &Phi, NE Exotic Atom Research (DEAR) and Silicon Drift Detector for Hadronic Atom Research by Timing Applications (SIDDHARTA) experiments on kaonic hydrogen, which have required the development of novel X-ray detectors. The 2019 installation of the new SIDDHARTA-2 experiment to measure kaonic deuterium for the first time has been made possible by further technological advances in X-ray detection.

Published
2019

76. Kaon-Nucleon Strong Interaction in Kaonic Atoms: The SIDDHARTA Program

Author

A. d'Uffizi, Hexi Shi, Florin Sirghi, M. Bazzi, E. Sbardella, G. A. Beer, P. Levi Sandri, B. Wünschek, Carlo Fiorini, T. Ponta, Johann Zmeskal, A. M. Bragadireanu, Catalina Curceanu, V. Tudorache, Eberhard Widmann, Shinji Okada, Johann Marton, C. Guaraldo, Michael Cargnelli, F. Ghio, A. Romero Vidal, Diana Sirghi, A. Rizzo, D. Pietreanu, Tommaso Frizzi, A. Tudorache, Paul Kienle, Alessandro Scordo, Ryugo S. Hayano, M. Iliescu, M. Iwasaki, T. Ishiwatari, H. Tatsuno, O. Vazquez Doce, Luca Bombelli, and A. Longoni

Subjects
Physics, Particle physics, sezele, Meson, Kaonic hydrogen, Hadron, Strong interaction, Elementary particle, Atomic and Molecular Physics, and Optics, law.invention, Baryon, Nuclear physics, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Nucleon, Collider
Abstract

SIDDHARTA collaboration performed the highest precision measurement of the shift and width of the kaonic hydrogen 1s state induced by the strong interaction at the DAΦNE collider of Laboratori Nazionali di Frascati. The result provides vital constraints on the theoretical description of the low-energy \({\bar{K} N}\) interactions.

Published
2013

77. A search for deeply-bound kaonic nuclear state at the J-PARC E15 experiment

Author

A. Romero Vidal, Yasuyuki Matsuda, Hexi Shi, Yutaka Mizoi, Masatoshi Sato, Johann Marton, Y. Sada, C. Guaraldo, G. A. Beer, Alessandro Scordo, T. Hashimoto, K. Inoue, Catalina Curceanu, S. Kawasaki, Shinji Okada, Florin Sirghi, Shun Enomoto, Paul Buehler, Hiroaki Ohnishi, L. Busso, Paul Kienle, Hiroyuki Fujioka, Haruhiko Outa, S. Choi, Tomokazu Fukuda, Mario Bragadireanu, H. Tatsuno, T. Yamazaki, Akihiro Toyoda, D. Faso, O. Vazquez Doce, Eberhard Widmann, Michiko Sekimoto, Tomofumi Nagae, Hyoungchan Bhang, Masahiko Iwasaki, K. Piscicchia, Fuminori Sakuma, O. Morra, S. Ishimoto, D. Tomono, Makoto Tokuda, M. Poli Lener, Hiroyuki Noumi, T. Ishikawa, Johann Zmeskal, Y. Ishiguro, S. Ajimura, Masami Iio, T. Ishiwatari, Atsushi Sakaguchi, Diana Sirghi, Yue Ma, H. Kou, T. Suzuki, Ken Suzuki, M. Iwai, H. Yim, S. Y. Suzuki, Yuuki Fujiwara, M. Iliescu, Kyo Tsukada, Toshihiko Hiraiwa, Ryugo S. Hayano, Michael Cargnelli, and K. Itahashi

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Proton, Nuclear state, Bound state, Neutron, Invariant mass, J-PARC
Abstract

The J-PARC E15 experiment will be performed to search for the simplest kaonic nuclear bound state, K ¯ N N , by the in-flight He 3 ( K − , N ) reaction. The exclusive measurement will be performed by a simultaneous measurement of the missing mass using the forward neutron or proton, and the invariant mass via the expected decay, e.g. K − p p → Λ p → p π − p . In this report, an overview of the experiment and an analysis of engineering runs performed in February and June are presented.

Published
2013

78. X-ray spectroscopy of light kaonic atoms – new results and perspectives

Author

G. A. Beer, E. Sbardella, P. Levi Sandri, Johann Zmeskal, D. Pietreanu, Hexi Shi, Florin Sirghi, M. Iliescu, E. Widmann, M. Iwasaki, A. Tudorache, B. Wünschek, Carlo Fiorini, A. Rizzo, C. Guaraldo, Carolina Berucci, Johann Marton, O. Vazquez Doce, F. Ghio, Luca Bombelli, Michael Cargnelli, Alessandro Scordo, Catalina Curceanu, M. Bazzi, V. Tudorache, A. Romero Vidal, P. Kienle, Ryugo S. Hayano, Shinji Okada, A. dʼUffizi, T. Ponta, A. M. Bragadireanu, Tommaso Frizzi, Antonio Francesco Longoni, Diana Sirghi, T. Ishiwatari, and H. Tatsuno

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, sezele, Kaonic hydrogen, Nuclear Theory, Strong interaction, Strangeness, Atomic and Molecular Physics, and Optics, Nuclear physics, Deuterium, Physics::Atomic Physics, Nuclear Experiment, Nucleon, Spectroscopy, Exotic atom
Abstract

The antikaon interaction on nucleons and nuclei in the low-energy regime is neither simple nor well understood. Rather direct access to this field is provided by x-ray spectroscopy of light kaonic atoms like kaonic hydrogen, deuterium and helium isotopes. A series of precision measurements on kaonic atoms was performed very successfully by the SIDDHARTA Collaboration at the DAΦNE electron-positron collider at LNF-INFN (Frascati, Italy). Consequently, new precision data on the strong interaction observables (i.e. energy shift and broadening of low-lying atomic states) were delivered having an important impact on the theory of low-energy QCD with strangeness. Presently, the follow-up experiment, SIDDHARTA-2, is in preparation, aiming at a determination of the strong interaction observables in kaonic deuterium as the highest priority; other type of measurements (light and heavier kaonic atoms) are as well foreseen. With the kaonic deuterium data the antikaon-nucleon isospin-resolved scattering lengths can be extracted for the first time. An overview of the progress and present status of experimental studies and an outlook to future perspectives in this fascinating research field is given.

Published
2012

79. Low-energy Antikaon Interaction with Nuclei: The AMADEUS Challenge

Author

Carolina Berucci, Raffaele Del Grande, M. Iliescu, Oton Vazquez Doce, Paolo Levi Sandri, Florin Sirghi, Diana Sirghi, Dorel Pietreanu, Laura Fabbietti, G. Bellotti, C. Guaraldo, Johann Marton, M. Bazzi, Hexi Shi, I. Tucakovic, Alberto Clozza, Michael Cargnelli, Carlo Fiorini, Alessandro Scordo, Eberhard Widmann, F. Ghio, Antonio Romero Vidal, Johann Zmeskal, A. D. Butt, D. Bosnar, Mario Bragadireanu, Kristian Piscicchia, and Catalina Curceanu

Subjects
Physics, 010308 nuclear & particles physics, Nuclear Theory, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, Nuclear physics, Low energy, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Humanities
Abstract

The low-energy strong interaction of antikaons (K-) with nuclei has many facets and rep- resents a lively and challenging research field. It is interconnected to the peculiar role of strangeness, since the strange quark is rather light, but still much heavier than the up and down quarks. Thus, when strangeness is involved one has to deal with spontaneous and explicit symmetry breaking in QCD. It is well known that the antikaon interaction with nucleons is attractive, but how strong ? Is the interaction strong enough to bind nucleons to form kaonic nuclei and, if so, what are the properties (binding energy, decay width)? There are controversial indications for such bound states and new results are expected to come soon. The existence of antikaon mediated bound states might have important consequences since it would open the possibility for the formation of cold baryonic matter of high density which might have a severe impact in astrophysics for the understanding of the composi- tion of compact (neutron) stars. New experimental opportunities could be provided by the AMADEUS experiment at the DA?NE electron-positron collider at LNF-INFN (Frascati, Italy). Pre-AMADEUS studies on the antikaon interaction with nuclei are carried out by analysis of data collected by KLOE in till 2005 and in special data runs using a carbon target insert. Studies for the dedicated AMADEUS detector setup taking advantage of the low-energy antikaons from Phi-meson decay delivered by DAFNE are in progress. Some re- sults obtained so far and the perspectives of the AMADEUS experiment are presented and discussed., 6 pages, 3 figures, Proceedings LEAP2016

Published
2016

80. Search for a violation of the Pauli Exclusion Principle with electrons

Author

Matthias Laubenstein, T. Ponta, Michael Cargnelli, A. d'Uffizi, C. Guaraldo, Florin Sirghi, Johann Marton, O. Vazquez-Doce, M. Bazzi, Mario Bragadireanu, E. Widmann, E. Sbardella, Carolina Berucci, J.-P. Egger, L. De Paolis, J. Zmeskal, M. Iliescu, D. Pietreanu, Alberto Clozza, K. Piscicchia, Catalina Curceanu, Alessandro Scordo, S. Bertolucci, A. Pichler, Diana Sirghi, Edoardo Milotti, Laura Sperandio, Hexi Shi, Sergio Bartalucci, S. Di Matteo, and T. Ishiwatari

Subjects
Physics, symbols.namesake, Pauli exclusion principle, Electromagnetic shielding, Cluster (physics), X-ray detector, symbols, Electron, Atomic physics
Published
2016

81. Study of the elementary (K-, n) reactions to search for the K NN bound state via the3He (K-, n) reaction at J-PARC

Author

A. Romero Vidal, S. Kawasaki, H. Fujioka, H. Kou, K. Itahashi, Koki Kanno, Fuminori Sakuma, Shinji Okada, D. Faso, Florin Sirghi, Tomofumi Nagae, Hiroaki Ohnishi, T. Yamazaki, T. Kim, D. Sirghi, Y. Kato, Y. Ishiguro, C. Guaraldo, Yue Ma, G. A. Beer, K. Inoue, H. Outa, Alessandro Scordo, Catalina Curceanu, T. Hashimoto, Michael Cargnelli, Hiroyuki Noumi, M. Sekimoto, T. Suzuki, J. Marton, Shigeru Ishimoto, T. Ishiwatari, Y. Sada, M. Iwai, Akihiro Toyoda, L. Busso, S. Y. Suzuki, S. Ajimura, Masami Iio, D. Tomono, Atsushi Sakaguchi, H. Tatsuno, M. Iliescu, Makoto Tokuda, Ken Suzuki, Paul Buehler, K. Kato, M. Bragadireanu, O. Vazquez Doce, Tomokazu Fukuda, Y. Fujiwara, H. C. Bhang, Yutaka Mizoi, Carolina Berucci, H. Yim, Toshihiko Hiraiwa, Hexi Shi, Ryugo S. Hayano, Kotaro Shirotori, M. Iwasaki, S. Choi, Q. Zhang, M. Sato, T. Yamaga, Kiyoshi Tanida, Shun Enomoto, E. Widmann, T. Ishikawa, Johann Zmeskal, B. K. Wuenschek, K. Tsukada, O. Morra, K. Piscicchia, Yasuhiro H. Matsuda, and Paul Kienle

Subjects
Physics, Deuterium, Hydrogen, chemistry, Yield (chemistry), Hadron, Bound state, Elementary reaction, Physical chemistry, chemistry.chemical_element, Neutron, Atomic physics, Helium
Abstract

We have searched for the simplest kaonic nuclear state, KNN, using the in-flight 3He (K-, n) reaction at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at θnlab=0°, an excess of yield was observed just below the K- pp mass-threshold, which cannot be explained by any elementary reactions [PTEP 2015, 061D01]. To understand the missing-mass spectrum of 3He (K-, n) X, we investigated the elementary (K-, n) reactions using hydrogen and deuterium targets. The p (K-, n) X missing-mass spectrum was well described by the charge-exchange reaction. However, in the d (K-, n) X spectrum, we observed an excess of yield just below the K- p mass-threshold, which was similar to that in the 3He (K-, n) X spectrum. (Less)

Published
2016

82. Shedding new light on kaon-nucleon/nuclei interaction and its astrophysical implications with the AMADEUS experiment at DAΦNE

Author

Johann Marton, D. Bosnar, C. Guaraldo, I. Tucakovic, A. M. Bragadireanu, Catalina Curceanu, O. Vazquez Doce, W. Wiedmann, R. Del Grande, P. Levi Sandri, J. Zmeskal, M. Iliescu, G. Bellotti, Alessandro Scordo, M. Bazzi, Michael Cargnelli, D. Pietreanu, Carolina Berucci, Diana Sirghi, Alberto Clozza, Laura Fabbietti, F. Ghio, K. Piscicchia, A. Dawood Butt, Carlo Fiorini, Florin Sirghi, and Hexi Shi

Subjects
Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, FOS: Physical sciences, Strangeness, 81V35, 01 natural sciences, Particle identification, law.invention, Baryon, Physics and Astronomy (all), law, 0103 physical sciences, Bound state, Nuclear Experiment (nucl-ex), Nuclear Experiment, 010306 general physics, Nucleon, Collider
Abstract

The AMADEUS experiment deals with the investigation of the low-energy kaon-nuclei hadronic interaction at the DA{\Phi}NE collider at LNF-INFN, which is fundamental to respond longstanding questions in the non-perturbative QCD strangeness sector. The antikaon-nucleon potential is investigated searching for signals from possible bound kaonic clusters, which would open the possibility for the formation of cold dense baryonic matter. The confirmation of this scenario may imply a fundamental role of strangeness in astrophysics. AMADEUS step 0 consisted in the reanalysis of 2004/2005 KLOE dataset, exploiting K- absorptions in H, 4He, 9Be and 12C in the setup materials. In this paper, together with a review on the multi-nucleon K- absorption and the particle identification procedure, the first results on the {\Sigma}0-p channel will be presented including a statistical analysis on the possible accomodation of a deeply bound state, Comment: 6 pages, 2 figure, 1 table, HADRON 2015 conference

Published
2016

83. SIDDHARTA results and implications of the results on antikaon-nucleon interaction

Author

H. Tatsuno, Shinji Okada, A. Romero Vidal, C. Guaraldo, D. Pietreanu, O. Vazquez Doce, K. Piscicchia, M. Iliescu, G. A. Beer, P. Levi Sandri, Michael Cargnelli, Johann Zmeskal, A. M. Bragadireanu, Florin Sirghi, E. Widmann, A. Dawood Butt, G. Bellotti, Carlo Fiorini, Diana Sirghi, Ryugo S. Hayano, F. Ghio, Carolina Berucci, Hexi Shi, Alessandro Scordo, Johann Marton, M. Bazzi, D. Bosnar, Catalina Curceanu, Alberto Clozza, and M. Iwasaki

Subjects
Physics, Particle physics, Kaonic hydrogen, Nuclear Theory, Hadron, Strong interaction, Strangeness, Nuclear physics, Physics and Astronomy (all), Atom, Bound state, Physics::Accelerator Physics, Nuclear Experiment, Nucleon, Ground state
Abstract

The interaction of antikaons (K−) with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics. There are important open questions like the existence of antikaon nuclear bound states like the prototype system being K− pp. Unique and rather direct experimental access to the antikaon-nucleon scattering lengths is provided by precision X-ray spectroscopy of transitions in low-lying states in light kaonic atoms like kaonic hydrogen and helium isotopes. In the SIDDHARTA experiment at the electron-positron collider DAΦNE of LNF-INFN we measured the most precise values of the strong interaction observables, i.e. the strong interaction on the 1s ground state of the electromagnetically bound K−p atom leading to energy shift and broadening of the 1s state. The SIDDHARTA result triggered new theoretical work, which achieved major progress in the understanding of the low-energy strong interaction with strangeness reflected by the antikaon-nucleon scattering lengths calculated with the K−-proton amplitudes constrained by the SIDDHARTA data. The most important open question is the experimental determination of the hadronic energy shift and width of kaonic deuterium which is planned by the SIDDHARTA-2 Collaboration.

Published
2016

84. The X-ray machine for the examination of quantum mechanics

Author

C. Guaraldo, Johann Marton, Sandro Donadi, A. Pichler, Matthias Laubenstein, Michael Cargnelli, Florin Sirghi, Carolina Berucci, M. Iliescu, Sergio Di Matteo, Alberto Clozza, Catalina Curceanu, Dorel Pietreanu, A. d'Uffizi, Oton Vazquez Doce, Sergio Bertolucci, Jean Pierre Egger, Kristian Piscicchia, Alessandro Scordo, Massimiliano Bazzi, T. Ponta, A. M. Bragadireanu, Luca De Paolis, Hexi Shi, Sergio Bartalucci, Johann Zmeskal, Diana Sirghi, Edoardo Milotti, Laura Sperandio, Angelo Bassi, Laboratori Nazionali di Frascati (LNF), Istituto Nazionale di Fisica Nucleare (INFN), Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Enrico Fermi Center for Study and Research | Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Dipartimento di Fisica [Trieste], Università degli studi di Trieste = University of Trieste, Stefan Meyer Institut für subatomare Physik (SMI), Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Université de Neuchâtel (UNINE), Laboratori Nazionali del Gran Sasso (LNGS), National Institut for Nuclear Physics and Engineering (IFIN HH), National Institut for Nuclear Physics and Engineering, Centro Studi e Ricerche 'Enrico Fermi' (Centro Fermi), Centro Studi e Ricerche e Museo Storico Della Fisica, Università degli studi di Trieste, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Curceanu, Catalina, Bartalucci, Sergio, Bassi, Angelo, Bazzi, Massimiliano, Bertolucci, Sergio, Berucci, Carolina, Bragadireanu, Alexandru Mario, Cargnelli, Michael, Clozza, Alberto, De Paolis, Luca, Di Matteo, Sergio, Donadi, Sandro, D'Uffizi, Alessandro, Egger, Jean Pierre, Guaraldo, Carlo, Iliescu, Mihail, Laubenstein, Matthia, Marton, Johann, Milotti, Edoardo, Pichler, Andrea, Pietreanu, Dorel, Piscicchia, Kristian, Ponta, Titu, Scordo, Alessandro, Shi, Hexi, Sirghi, Diana, Sirghi, Florin, Sperandio, Laura, Doce, Oton Vazquez, and Zmeskal, Johann

Subjects
[PHYS]Physics [physics], Physics, Physics and Astronomy (miscellaneous), Spin-statistic, 010308 nuclear & particles physics, collapse models, 01 natural sciences, Signature (logic), X-ray, Spin-statistics, X-rays, symbols.namesake, Pauli exclusion principle, Quantum mechanics, 0103 physical sciences, symbols, Underground laboratory, collapse model, 010306 general physics, Wave function collapse, Order of magnitude
Abstract

International audience; By performing X-rays measurements in the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli exclusion principle (PEP). In the future, we aim to use a similar experimental technique to search for X-rays as a signature of the spontaneous collapse of the wave function predicted by continuous spontaneous localization theories. We present the achieved results of the VIP experiment and the future plans to gain two orders of magnitude in testing PEP with the recently VIP2 setup installed at Gran Sasso. © 2016 World Scientific Publishing Company.

Published
2016

85. $K$-series X-ray yield measurement of kaonic hydrogen atoms in a gaseous target

Author

D. Bosnar, Ryugo S. Hayano, Diana Sirghi, D. Pietreanu, O. Vazquez Doce, Johann Marton, G. Bellotti, Hexi Shi, C. Guaraldo, M. Iwasaki, Florin Sirghi, Michael Cargnelli, Catalina Curceanu, E. Sbardella, P. Levi Sandri, Johann Zmeskal, A. d'Uffizi, Alessandro Scordo, M. Bazzi, E. Widmann, A. Romero Vidal, T. Ishiwatari, Carlo Fiorini, G. A. Beer, Shinji Okada, H. Tatsuno, M. Iliescu, F. Ghio, K. Piscicchia, A. M. Bragadireanu, Carolina Berucci, and A. D. Butt

Subjects
Nuclear and High Energy Physics, Hydrogen, Kaonic hydrogen, chemistry.chemical_element, FOS: Physical sciences, Atomic cascade, Kaonic atom, X-ray spectroscopy, Nuclear and High Energy Physics, sezele, 01 natural sciences, 0103 physical sciences, Physics::Atomic Physics, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Exotic atom, Physics, sezele, Series (mathematics), 010308 nuclear & particles physics, X-ray, chemistry, Cascade, Yield (chemistry), Atomic physics
Abstract

We measured the $K$-series X-rays of the $K^{-}p$ exotic atom in the SIDDHARTA experiment with a gaseous hydrogen target of 1.3 g/l, which is about 15 times the $\rho_{\rm STP}$ of hydrogen gas. At this density, the absolute yields of kaonic X-rays, when a negatively charged kaon stopped inside the target, were determined to be 0.012$^{+0.004}_{-0.003}$ for $K_{\alpha}$ and 0.043$^{+0.012}_{-0.011}$ for all the $K$-series transitions $K_{tot}$. These results, together with the KEK E228 experiment results, confirm for the first time a target density dependence of the yield predicted by the cascade models, and provide valuable information to refine the parameters used in the cascade models for the kaonic atoms., Comment: 9 pages, 5 figures. Submitted to Nuclear Physics A, Special Issue on Strangeness and Charm

Published
2016
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86. Spontaneously Emitted X-rays: An Experimental Signature of the Dynamical Reduction Models

Author

Massimiliano Bazzi, D. L. Sirghi, M. Cargnelli, C. Guaraldo, Matthias Laubenstein, Angelo Bassi, D. Pietreanu, S. Di Matteo, T. Ishiwatari, Edoardo Milotti, Kristian Piscicchia, Sergio Bartalucci, Catalina Curceanu, Florin Sirghi, Sergio Bertolucci, Hexi Shi, E. Sbardella, Johann Zmeskal, O. Vazquez Doce, A. Pichler, C. Berucci, J. P. Egger, Laura Sperandio, T. Ponta, Alessandro Scordo, Sandro Donadi, A. d'Uffizi, J. Marton, M. Iliescu, A. M. Bragadireanu, Alberto Clozza, L. De Paolis, Laboratori Nazionali di Frascati (LNF), Istituto Nazionale di Fisica Nucleare (INFN), Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Enrico Fermi Center for Study and Research | Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Dipartimento di Fisica [Trieste], Università degli studi di Trieste, Stefan Meyer Institut für subatomare Physik (SMI), Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Université de Neuchâtel (UNINE), Laboratori Nazionali del Gran Sasso (LNGS), Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Curceanu, C., Bartalucci, S., Bassi, Angelo, Bazzi, M., Bertolucci, S., Berucci, C., Bragadireanu, A. M., Cargnelli, M., Clozza, A., de Paolis, L., Di Matteo, S., Donadi, Sandro, D’Uffizi, A., Egger, J. P., Guaraldo, C., Iliescu, M., Ishiwatari, T., Laubenstein, M., Marton, J., Milotti, Edoardo, Pichler, A., Pietreanu, D., Piscicchia, K., Ponta, T., Sbardella, E., Scordo, A., Shi, H., Sirghi, D. L., Sirghi, F., Sperandio, L., Vazquez Doce, O., Zmeskal, J., Università degli studi di Trieste = University of Trieste, Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Centro Studi e Ricerche 'Enrico Fermi' (Centro Fermi), and Centro Studi e Ricerche e Museo Storico Della Fisica

Subjects
Classical and Quantum Gravitation, Physics - Instrumentation and Detectors, Collapse models, Dynamical Systems and Complexity, FOS: Physical sciences, General Physics and Astronomy, Measurement problem, Dynamical reduction models, Mechanics, 01 natural sciences, Signal, Schrödinger equation, Philosophy of Science, Reduction (complexity), symbols.namesake, 0103 physical sciences, X-rays, Relativity Theory, 010306 general physics, Physics, Dynamical reduction model, [PHYS]Physics [physics], Quantum Physics, 010308 nuclear & particles physics, Statistical Physics, Instrumentation and Detectors (physics.ins-det), Classical mechanics, History and Philosophical Foundations of Physics, Collapse model, symbols, Quantum Physics (quant-ph), Wave function collapse, Signature (topology)
Abstract

We present the idea of searching for X-rays as a signature of the mechanism inducing the spontaneous collapse of the wave function. Such a signal is predicted by the continuous spontaneous localization theories, which are solving the "measurement problem" by modifying the Schrodinger equation. We will show some encouraging preliminary results and discuss future plans and strategy., to be published in Foundation of Physics 2015

Published
2016

87. Studies of the ${\boldsymbol{\bar{K}}}\boldsymbol{N}$ interaction at DAΦNE

Author

C. Berucci, Carlo Fiorini, T. Ponta, Hexi Shi, Florin Sirghi, O. Vazquez Doce, D. Pietreanu, J. Marton, Luca Bombelli, A. Romero Vidal, A. d'Uffizi, T. Ishiwatari, Alessandro Scordo, Kristian Piscicchia, M. Iliescu, C. Guaraldo, Massimiliano Bazzi, Alberto Clozza, F. Ghio, Catalina Curceanu, M. Cargnelli, H. Tatsuno, A. Rizzo, Antonio Francesco Longoni, M. Poli Lener, D. L. Sirghi, A. M. Bragadireanu, Eberhard Widmann, E. Sbardella, P. Levi Sandri, Johann Zmeskal, and Shinji Okada

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Light nucleus, law, Hadron, Physical and Theoretical Chemistry, Condensed Matter Physics, Nuclear matter, Collider, Atomic and Molecular Physics, and Optics, Bar (unit), law.invention
Abstract

AMADEUS is an experiment planned to be performed at the DAΦNE e+e− collider of the Frascati National Laboratories (Italy) of INFN, to investigate the antikaon-nuclei interaction at low energies. AMADEUS will perform, for the first time, full-acceptance studies of antikaon interaction in light nuclei, including a complete experimental program for the case of the kaonic nuclear clusters. The study of the absorption of antikaon by the nucleus will provide information concerning the \(\bar{K}N\) interaction and the modification of the kaon mass in the nuclear medium. The experiment is being preceded by the study of the hadronic interactions of K− in the 4He of the drift chamber from the KLOE experiment data.

Published
2011

88. Performance of silicon-drift detectors in kaonic atom X-ray measurements

Author

V. Lucherini, T. Ponta, O. Vazquez Doce, H. Tatsuno, A. M. Bragadireanu, Michael Cargnelli, Diana Sirghi, A. Romero Vidal, Hexi Shi, Luca Bombelli, D. Pietreanu, G. A. Beer, Tommaso Frizzi, M. Iliescu, Johann Marton, M. Bazzi, Florin Sirghi, B. Girolami, Carlo Fiorini, A. Rizzo, T. Ishiwatari, Eberhard Widmann, F. Ghio, V. Tudorache, Ryugo S. Hayano, Alessandro Scordo, C. Guaraldo, Masahiko Iwasaki, Shinji Okada, G. Corradi, P. Levi Sandri, Johann Zmeskal, A. d'Uffizi, P. Kienle, A. Longoni, Catalina Curceanu, and A. Tudorache

Subjects
Physics, Nuclear and High Energy Physics, sezele, Silicon drift detector, Silicon, Hydrogen, Strong interaction, X-ray detector, chemistry.chemical_element, law.invention, Nuclear physics, Deuterium, chemistry, law, Atom, Physics::Atomic Physics, Atomic physics, Collider, Instrumentation
Abstract

Large-area silicon drift detectors (SDDs) were used for the first time in the background condition of a collider for precision spectroscopy of the kaonic atom X-rays in the SIDDHARTA experiment for the study of the strong interaction in a low-energy regime. The measurements were performed at the DA Φ NE electron–positron collider (LNF, Italy), using gas targets of hydrogen, deuterium, helium-3, and helium-4. A test measurement using the kaonic 4 He X-rays showed an excellent performance of the SDD devices under the beam conditions, and a good background suppression capability using the time correlation between the kaonic atom X-rays and the back-to-back correlated K + K − pairs produced by φ decays.

Published
2011

89. Kaon-nucleon/nuclei interaction studies by kaonic atoms measurements: the SIDDHARTA experiment at DAΦNE

Author

Ryugo S. Hayano, Tommaso Frizzi, Hexi Shi, C. Guaraldo, G. Corradi, Johann Marton, Florin Sirghi, H. Tatsuno, Shinji Okada, G. A. Beer, A. dʼUffizi, E. Wiedmann, T. Ponta, M. Iliescu, A. M. Bragadireanu, Carlo Fiorini, Catalina Curceanu, Antonio Francesco Longoni, T. Ishiwatari, P. Kienle, D. Pietreanu, M. Iwasaki, V. Tudorache, Michael Cargnelli, F. Ghio, A. Tudorache, A. Rizzo, P. Levi Sandri, V. Lucherini, Luca Bombelli, J. Zmeskal, M. Bazzi, B. Girolami, Alessandro Scordo, O. Vazquez Doce, Diana Sirghi, and A. Romero Vidal

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Silicon drift detector, Physics::Instrumentation and Detectors, Kaonic hydrogen, Nuclear Theory, chemistry.chemical_element, Atomic and Molecular Physics, and Optics, Nuclear physics, Helium-4, chemistry, Deuterium, Helium-3, Atom, Physics::Atomic Physics, Nuclear Experiment, Nucleon, Helium
Abstract

The SIDDHARTA experiment (SIlicon Drift Detector for Hadronic Atom Research by Timing Application) had the aim to perform a precise measurement of K-series kaonic hydrogen x-rays and the first-ever measurement of the kaonic deuterium x-rays to determine the strong-interaction energy-level shifts and widths of the lowest lying atomic states. These measurements offer a unique possibility to precisely determine the isospin-dependent kaon-nucleon(KN) scattering lengths which are directly connected with the physics of the KN interaction. The experiment combined the excellent low-energy kaon beam generated at DAΦNE, allowing to use gaseous targets, with excellent fast X-rays detectors: Silicon Drift Detectors. SIDDHARTA was installed on DAΦNE in autumn 2008 and took data till late 2009. Apart of the kaonic hydrogen and kaonic deuterium measurements, we have performed the kaonic helium transitions to the 2 p level (L-lines) measurements: for the first time in a gaseous target for kaonic helium 4 and for the first time ever for kaonic helium 3. In this paper, an overview of this experiment and preliminary results are presented, together with future plans.

Published
2011

90. The kaonic atoms research program at DAΦNE: overview and perspectives

Author

Mohamad Bazzi, A. Dawood Butt, Carlo Fiorini, D. Bosnar, Szymon Niedźwiecki, H. Tatsuno, Shinji Okada, C. Guaraldo, Paweł Moskal, Hexi Shi, A. Baniahmad, G. Bellotti, M. Iwasaki, A. Spallone, Laura Fabbietti, K. Piscicchia, M. Cargnelli, D. Sirghi, Magdalena Skurzok, J. Marton, M. Bragadireanu, F. Ghio, D. Pietreanu, Michał Silarski, Marco Miliucci, O. Vazquez Doce, P. Levi Sandri, Carolina Berucci, Johann Zmeskal, E. Widmann, A. Amirkhani, Catalina Curceanu, R. Del Grande, M. Iliescu, and Florin Sirghi

Subjects
Physics, History, Kaonic hydrogen, Nuclear Theory, Strong interaction, Context (language use), Computer Science Applications, Education, law.invention, Nuclear physics, Physics and Astronomy (all), Upgrade, Deuterium, law, Atom, Physics::Accelerator Physics, High Energy Physics::Experiment, Physics::Atomic Physics, Nuclear Experiment, Nucleon, Collider
Abstract

The interaction of antikaons with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics with still many important open questions. The investigation of light kaonic atoms is, in this context, a unique tool to obtain precise information on this interaction. The energy shift and broadening of the lowest-lying states of such atoms, induced by the kaon-nucleus strong interaction, can be determined with high precision from atomic X-ray spectroscopy. This experimental method provides unique information to understand the low energy kaon-nucleus interaction at threshold. The lightest atomic systems, kaonic hydrogen and kaonic deuterium, deliver the isospin-dependent kaon-nucleon scattering lengths. The most precise kaonic hydrogen measurement to date, together with an exploratory measurement of kaonic deuterium, were carried out by the SIDDHARTA collaboration at the DAΦNE electron-positron collider of LNF-INFN, by combining the excellent quality kaon beam delivered by the collider with new experimental techniques, as fast and precise X-ray detectors: Silicon Drift Detectors. The measurement of kaonic deuterium will be realized in the near future by SIDDHARTA-2, a major upgrade of SIDDHARTA. In this paper an overview of the main results obtained by SIDDHARTA together with the future plans, are given.

Published
2018

91. VOXES: a high precision X-ray spectrometer for diffused sources with HAPG crystals in the 2–20 keV range

Author

Johann Zmeskal, Florin Sirghi, Alessandro Scordo, Hexi Shi, M. Miliucci, and Catalina Curceanu

Subjects
Physics, Range (particle radiation), Physics - Instrumentation and Detectors, Photon, Spectrometer, business.industry, Astrophysics::High Energy Astrophysical Phenomena, 010401 analytical chemistry, FOS: Physical sciences, Synchrotron radiation, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Collimated light, 010305 fluids & plasmas, 0104 chemical sciences, Optics, 0103 physical sciences, Radiative transfer, Spectroscopy, business, Instrumentation, Mathematical Physics, Exotic atom
Abstract

Bragg spectroscopy is one of the best established experimental methods for high energy resolution X-ray measurements and has been widely used in several fields, going from fundamental physics to quantum mechanics tests, synchrotron radiation and X-FEL applications, astronomy, medicine and industry. However, this technique is limited to the measurement of photons produced from well collimated or point-like sources and becomes quite inefficient for photons coming from extended and diffused sources like those,for example, emitted in the exotic atoms radiative transitions. The VOXES project's goal is to realise a prototype of a high resolution and high precision X-ray spectrometer, using Highly Annealed Pyrolitic Graphite (HAPG) crystals in the Von Hamos configuration, working also for extended sources. The aim is to deliver a cost effective system having an energy resolution at the level of eV for X rays energies from about 2 keV up to tens of keV, able to perform sub-eV precision measurements with non point-like sources. In this paper, the working principle of VOXES, together with first results, are presented., Comment: arXiv admin note: text overlap with arXiv:1709.06503

Published
2018

92. Kaonic atoms studies at DAFNE by the SIDDHARTA experiment

Author

A. Romero Vidal, V. Lucherini, C. Guaraldo, M. Bazzi, T. Ishiwatari, O. Vazquez Doce, H. Tatsuno, Peter Lechner, Luca Bombelli, E. Widmann, Diana Sirghi, G. A. Beer, M. Iwasaki, Carlo Fiorini, Florin Sirghi, Shinji Okada, T. Ponta, A. M. Bragadireanu, Catalina Curceanu, P. Kienle, Michael Cargnelli, Ryugo S. Hayano, Hexi Shi, Johann Marton, M. Iliescu, D. Pietreanu, Tommaso Frizzi, P. Levi Sandri, Johann Zmeskal, B. Girolami, F. Ghio, Heike Soltau, Lothar Strüder, Alessandro Scordo, and Antonio Francesco Longoni

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Strange quark, sezele, Kaonic hydrogen, Nuclear Theory, Hadron, law.invention, Nuclear physics, Explicit symmetry breaking, Deuterium, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Physics::Atomic Physics, Nuclear Experiment, Collider, Exotic atom
Abstract

The K ¯ N system at rest makes a sensitive testing ground for chiral SU(3) symmetry in QCD, especially for the explicit symmetry breaking induced by the relatively large mass of the strange quark. At the DAΦNE electron-positron collider of Laboratori Nazionali di Frascati we study kaonic atoms, taking advantage of the low-energy kaons from Φ-mesons decaying nearly at rest. The low-energy antikaon-nucleon interaction in kaonic hydrogen and kaonic deuterium can be investigated under favorable conditions. The DEAR (DAΦNE Exotic Atom Research) experiment at LNF delivered the most precise data on kaonic hydrogen up to now. DEAR and its follow-up experiment SIDDHARTA (Silicon Drift Detector for Hadronic Atom Research by Timing Application) are using X-ray spectroscopy of kaonic atoms to measure the strong interaction induced shift and width of the ground state. SIDDHARTA is the first experiment on kaonic deuterium ever, and kaonic hydrogen is remeasured with improved precision. From the shift and width in K-p and K-d the isospin-dependent antikaon-nucleon scattering lengths can be determined, quantities essential as constraints for low-energy QCD.

Published
2010

93. Search for the violation of Pauli Exclusion Principle at LNGS

Author

Florin Sirghi, Alessandro Scordo, D. Pietreanu, Diana Sirghi, S. Di Matteo, Alberto Clozza, J.-P. Egger, Edoardo Milotti, O. Vazquez Doce, Laura Sperandio, S. Bertolucci, A. Pichler, K. Piscicchia, C. Guaraldo, A. M. Bragadireanu, E. Widmann, Johann Marton, Johann Zmeskal, Matthias Laubenstein, Michael Cargnelli, Sergio Bartalucci, Hexi Shi, M. Bazzi, M. Iliescu, L. De Paolis, Catalina Curceanu, Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Dipartimento di Fisica e Astronomia [Bologna], Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Université de Neuchâtel (UNINE), Stefan Meyer Institut für subatomare Physik (SMI), Aharonov Y.Kabana S.Aharonov Y.Bravina L., Shi, H., Bartalucci, S., Bazzi, M., Bertolucci, S., Bragadireanu, A. M., Cargnelli, M., Clozza, A., Curceanu, C., De Paolis, L., Di Matteo, S., Egger, J. -P., Guaraldo, C., Iliescu, M., Marton, J., Laubenstein, M., Milotti, E., Pichler, A., Pietreanu, D., Piscicchia, K., Scordo, A., Sirghi, D. L., Sirghi, F., Sperandio, L., Vazquez Doce, O., Widmann, E., Zmeskal, J., and Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS]Physics [physics], Physics, Particle physics, 010308 nuclear & particles physics, QC1-999, experimental tests, Spin-statistics connection, quantum physics, Electron, 01 natural sciences, quantum physic, symbols.namesake, Pauli exclusion principle, 0103 physical sciences, symbols, Orbit (control theory), 010306 general physics
Abstract

International audience; In the VIP (VIolation of Pauli exclusion principle) and its follow-up VIP-2 experiments at the Laboratori Nazionali del Gran Sasso, we test the validity of the Pauli Exclusion Principle, by searching for x-rays from copper atomic transitions from a 2p orbit electron to the ground state which is already occupied by two electrons. Such transitions are prohibited by the Pauli Exclusion Principle. The physics run of the VIP-2 experiment started in late 2016 and will collect data for three years. From the first data taking period of two months we have obtained a new limit better than the VIP result from three years of running. In this article we present the published first physics result from the VIP-2 experiment and discuss about the future perspectives. © The Authors, published by EDP Sciences.

Published
2018

94. Kaonic helium-4 X-ray measurement in SIDDHARTA

Author

T. Ishiwatari, G. A. Beer, Michael Cargnelli, Johann Marton, Florin Sirghi, B. Girolami, A. Rizzo, Diana Sirghi, Hexi Shi, Luca Bombelli, A. Tudorache, Alessandro Scordo, A. Romero Vidal, Dorel Pietreanu, T. Ponta, P. Kienle, V. Tudorache, H. Tatsuno, C. Guaraldo, G. Corradi, A. M. Bragadireanu, Tommaso Frizzi, V. Lucherini, A. Longoni, M. Iliescu, Shinji Okada, A. d'Uffizi, O. Vazquez Doce, Ryugo S. Hayano, Catalina Curceanu, Carlo Fiorini, M. Bazzi, P. Levi Sandri, Johann Zmeskal, Eberhard Widmann, F. Ghio, and Masahiko Iwasaki

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Kaonic hydrogen, Strong interaction, X-ray, Compton scattering, chemistry.chemical_element, law.invention, Nuclear physics, Helium-4, chemistry, law, High Energy Physics::Experiment, Atomic physics, Collider, Helium, Exotic atom
Abstract

The kaonic helium-4 3 d → 2 p X-ray transition was measured in a gaseous target, where Compton scattering in helium is negligible. The X-rays were detected with large-area Silicon Drift Detectors (SDDs) using the timing information of the K + K − pairs produced by ϕ decays at the DAΦNE e + e − collider. A new value of the strong interaction shift of the kaonic 4He 2p state was determined to be 0 ± 6 (stat) ± 2 (syst) eV , which confirms the recently obtained result by the KEK-PS E570 group.

Published
2009

95. Kaonic atoms measurements at the DAΦNE accelerator

Author

V. Lucherini, Florin Sirghi, P. Levi Sandri, Johann Marton, O. Vazquez Doce, Hexi Shi, M. Iwasaki, Michael Cargnelli, A. Romero Vidal, M. Iliescu, B. Girolami, Luca Bombelli, J. Zmeskal, Shinji Okada, D. L. Shirghi, Paul Kienle, Catalina Curceanu, M. Bazzi, C. Guaraldo, Peter Lechner, H. Tatsuno, D. Pietreanu, Heike Soltau, L. Struder, E. Widmann, Antonio Francesco Longoni, T. Ishiwatari, Carlo Fiorini, Alessandro Scordo, Tommaso Frizzi, Ryugo S. Hayano, G. A. Beer, T. Ponta, A. M. Bragadireanu, and F. Ghio

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Silicon drift detector, Physics::Instrumentation and Detectors, Kaonic hydrogen, Nuclear Theory, Hadron, Strangeness, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, law.invention, Nuclear physics, law, Isospin, Physics::Accelerator Physics, High Energy Physics::Experiment, Physics::Atomic Physics, Physical and Theoretical Chemistry, Nuclear Experiment, Collider, Exotic atom
Abstract

The DAΦNE electron-positron collider at the Frascati National Laboratories has made available a unique “beam” of negative kaons. The SIDDHARTA (SIlicon Drift Detector for Hadronic Atom Research by Timing Application) experiment, successor of DEAR (DAΦNE Exotic Atom Research), aims at a precision measurement of the strong interaction shift and width of the fundamental 1s level, via the measurement of the x-ray transitions to this level, for kaonic hydrogen and kaonic deuterium. The final goal is to extract the isospin dependent antikaon-nucleon scattering lengths which contribute to the understanding of aspects of non-perturbative QCD in the strangeness sector. Other possible hadronic atoms measurements at DAΦNE are under study.

Published
2009

96. Spectroscopic Study of Hyperon Resonances below \(\bar{K}N\) Threshold via the \(\left( K^{ - },n \right)\) Reaction on Deuteron

Author

Mario Bragadireanu, Johann Marton, O. Morra, T. Suzuki, K. Tsukada, S. Kawasaki, M. Poli Lener, S. Choi, H. Fujioka, M. Iwai, T. Yamaga, K. Shirotori, Toshihiko Hiraiwa, Shinji Okada, Ken Suzuki, S. Ishimoto, Haruhiko Outa, M. Iwasaki, Y. Mizoi, T. Yamazaki, Michael Cargnelli, K. Inoue, C. Guaraldo, Hiroaki Ohnishi, M. Sekimoto, A. Romero Vidal, Hexi Shi, T. Ishikawa, Tomokazu Fukuda, Hiroyuki Noumi, L. Busso, H. Kou, M. Iliescu, H. C. Bhang, E. Widmann, Y. Fujiwara, T. Hashimoto, J. Zmeskal, Makoto Tokuda, G. A. Beer, Masatoshi Sato, Ryugo S. Hayano, Y. Ishiguro, D. Tomono, S. Ajimura, Masami Iio, S. Y. Suzuki, Florin Sirghi, T. Tanida, Tomofumi Nagae, Q. Zhang, Paul Buehler, Yue Ma, D. Faso, Y. Sada, Y. Kato, P. Kienle, O. Vazquez Doce, Aya Sakaguchi, Akihiro Toyoda, H. Yim, Fuminori Sakuma, Al Scordo, K. Itahashi, Catalina Curceanu, Diana Sirghi, T. Ishiwatari, K. Piscicchia, Yasuhiro H. Matsuda, H. Tatsuno, B. K. Wuenschek, and Shun Enomoto

Subjects
Physics, Nuclear physics, Nuclear magnetic resonance, Deuterium, Bar (music), Hyperon
Published
2015

97. Application of photon detectors in the VIP2 experiment to test the Pauli Exclusion Principle

Author

E. Sbardella, Edoardo Milotti, K. Piscicchia, Johann Zmeskal, Carolina Berucci, J.-P. Egger, Alberto Clozza, Catalina Curceanu, E. Widmann, Laura Sperandio, Sergio Bartalucci, S. Di Matteo, L. De Paolis, Diana Sirghi, Mario Bragadireanu, A. Pichler, T. Ishiwatari, A. d'Ufflzi, Sergio Bertolucci, Hexi Shi, Florin Sirghi, Alessandro Scordo, D. Pietreanu, Michael Cargnelli, O. Vazquez-Doce, C. Guaraldo, Matthias Laubenstein, M. Iliescu, T. Ponta, Johann Marton, M. Bazzi, Laboratori Nazionali di Frascati (LNF), Istituto Nazionale di Fisica Nucleare (INFN), Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Laboratori Nazionali del Gran Sasso (LNGS), Stefan Meyer Institut für subatomare Physik (SMI), Dipartimento di Fisica [Trieste], Università degli studi di Trieste, Enrico Fermi Center for Study and Research | Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, National Institut for Nuclear Physics and Engineering (IFIN HH), National Institut for Nuclear Physics and Engineering, Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Université de Neuchâtel (UNINE), 581589, John Templeton Foundation, P25529-N20, FWF, Austrian Science Fund, W1252-N27, FWF, Austrian Science Fund, Centro Studi e Ricerche 'Enrico Fermi' (Centro Fermi), Centro Studi e Ricerche e Museo Storico Della Fisica, Università degli studi di Trieste = University of Trieste, Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Pichler, A., Bartalucci, S., Bazzi, M., Bertolucci, S., Berucci, C., Bragadireanu, M., Cargnelli, M., Clozza, A., Curceanu, C., De Paolis, L., Di Matteo, S., D'Ufflzi, A., Egger, J. P., Guaraldo, C., Iliescu, M., Ishiwatari, T., Laubenstein, M., Marton, J., Milotti, Edoardo, Pietreanu, D., Piscicchia, K., Ponta, T., Sbardella, E., Scordo, A., Shi, H., Sirghi, D., Sirghi, F., Sperandio, L., Vazquez Doce, O., Widmann, E., and Zmeskal, J.

Subjects
History, Particle physics, Physics - Instrumentation and Detectors, Photon, Silicon drift detector, Underground laboratory, FOS: Physical sciences, Photodetector, 02 engineering and technology, Electron, Active shielding, Scintillator, Silicon photomultiplier, Astrophysics, 01 natural sciences, Education, Pauli exclusion principle, Physics and Astronomy (all), symbols.namesake, 0103 physical sciences, Detectors and Experimental Techniques, Silicon Drift Detector, 010306 general physics, Physics, Plastic scintillator, [PHYS]Physics [physics], Photons, Photodetectors, Instrumentation and Detectors (physics.ins-det), 021001 nanoscience & nanotechnology, Pauli principle, Particle beams, Computer Science Applications, Cosmology, Orders of magnitude, Orders of magnitude (time), Quantum theory, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, symbols, Silicon detectors, 0210 nano-technology
Abstract

The Pauli Exclusion Principle (PEP) was introduced by the austrian physicist Wolfgang Pauli in 1925. Since then, several experiments have checked its validity. From 2006 until 2010, the VIP (VIolation of the Pauli Principle) experiment took data at the LNGS underground laboratory to test the PEP. This experiment looked for electronic 2p to 1s transitions in copper, where 2 electrons are in the 1s state before the transition happens. These transitions violate the PEP. The lack of detection of X-ray photons coming from these transitions resulted in a preliminary upper limit for the violation of the PEP of $4.7 \times 10^{-29}$. Currently, the successor experiment VIP2 is under preparation. The main improvements are, on one side, the use of Silicon Drift Detectors (SDDs) as X-ray photon detectors. On the other side an active shielding is implemented, which consists of plastic scintillator bars read by Silicon Photomultipliers (SiPMs). The employment of these detectors will improve the upper limit for the violation of the PEP by around 2 orders of magnitude. The Pauli Exclusion Principle (PEP) was introduced by the austrian physicist Wolfgang Pauli in 1925. Since then, several experiments have checked its validity. From 2006 until 2010, the VIP (Violation of the Pauli Principle) experiment took data at the LNGS underground laboratory to test the PEP. This experiment looked for electronic 2p to Is transitions in copper, where 2 electrons are in the Is state before the transition happens. These transitions violate the PEP. The lack of detection of X-ray photons coming from these transitions resulted in a preliminary upper limit for the violation of the PEP of 4.7 × 10(-29). Currently, the successor experiment VIP2 is under preparation. The main improvements are, on one side, the use of Silicon Drift Detectors (SDDs) as X-ray photon detectors. On the other side an active shielding is implemented, which consists of plastic scintillator bars read by Silicon Photomultipliers (SiPMs). The employment of these detectors will improve the upper limit for the violation of the PEP by around 2 orders of magnitude. The Pauli Exclusion Principle (PEP) was introduced by the austrian physicist Wolfgang Pauli in 1925. Since then, several experiments have checked its validity. From 2006 until 2010, the VIP (VIolation of the Pauli Principle) experiment took data at the LNGS underground laboratory to test the PEP. This experiment looked for electronic 2p to 1s transitions in copper, where 2 electrons are in the 1s state before the transition happens. These transitions violate the PEP. The lack of detection of X-ray photons coming from these transitions resulted in a preliminary upper limit for the violation of the PEP of $4.7 \times 10^{-29}$. Currently, the successor experiment VIP2 is under preparation. The main improvements are, on one side, the use of Silicon Drift Detectors (SDDs) as X-ray photon detectors. On the other side an active shielding is implemented, which consists of plastic scintillator bars read by Silicon Photomultipliers (SiPMs). The employment of these detectors will improve the upper limit for the violation of the PEP by around 2 orders of magnitude.

Published
2015

98. Searches for the violation of Pauli exclusion principle at LNGS in VIP(-2) experiment

Author

Carolina Berucci, C. Guaraldo, Catalina Curceanu, L. De Paolis, A. Romero Vidal, Sergio Bertolucci, Diana Sirghi, A. d'Ufflzi, J.-P. Egger, Edoardo Milotti, Matthias Laubenstein, E. Sbardella, Florin Sirghi, Johann Zmeskal, Hexi Shi, O. Vazquez Doce, Alessandro Scordo, Sergio Bartalucci, E. Widmann, T. Ponta, A. M. Bragadireanu, K. Piscicchia, Michael Cargnelli, D. Pietreanu, J. Marton, Alberto Clozza, Laura Sperandio, T. Ishiwatari, S. Di Matteo, M. Iliescu, Laboratori Nazionali di Frascati (LNF), Istituto Nazionale di Fisica Nucleare (INFN), Stefan Meyer Institut für subatomare Physik (SMI), Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Enrico Fermi Center for Study and Research | Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Université de Neuchâtel (UNINE), Laboratori Nazionali del Gran Sasso (LNGS), Dipartimento di Fisica [Trieste], Università degli studi di Trieste = University of Trieste, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Università degli studi di Trieste, Centro Studi e Ricerche 'Enrico Fermi' (Centro Fermi), Centro Studi e Ricerche e Museo Storico Della Fisica, Shi, H., Bartalucci, S., Bertolucci, S., Berucci, C., Bragadireanu, A. M., Cargnelli, M., Clozza, A., Curceanu, C., De Paolis, L., Di Matteo, S., D'Ufflzi, A., Egger, J. P., Guaraldo, C., Iliescu, M., Ishiwatari, T., Marton, J., Laubenstein, M., Milotti, Edoardo, Pietreanu, D., Piscicchia, K., Ponta, T., Vidal, A. Romero, Sbardella, E., Scordo, A., Sirghi, D. L., Sirghi, F., Sperandio, L., Doce, O. Vazquez, Widmann, E., and Zmeskal, J.

Subjects
History, Particle physics, Physics - Instrumentation and Detectors, Ground state, FOS: Physical sciences, High-precision, Electron, 01 natural sciences, Education, Pauli exclusion principle, symbols.namesake, Physics and Astronomy (all), 0103 physical sciences, Atomic state, Orders of magnitude (data), Detectors and Experimental Techniques, 010306 general physics, Physics, [PHYS]Physics [physics], Quantum Physics, 010308 nuclear & particles physics, X ray spectroscopy, Instrumentation and Detectors (physics.ins-det), Follow up, Computer Science Applications, Orders of magnitude, Quantum theory, symbols, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Quantum Physics (quant-ph)
Abstract

The VIP (Violation of Pauli exclusion principle) experiment and its follow-up experiment VIP-2 at the Laboratori Nazionali del Gran Sasso (LNGS) search for X-rays from Cu atomic states that are prohibited by the Pauli Exclusion Principle (PEP). The candidate events, if they exist, will originate from the transition of a $2p$ orbit electron to the ground state which is already occupied by two electrons. The present limit on the probability for PEP violation for electron is 4.7 $\times10^{-29}$ set by the VIP experiment. With upgraded detectors for high precision X-ray spectroscopy, the VIP-2 experiment will improve the sensitivity by two orders of magnitude., 5 pages, 3 figures, 1 table. Conference proceedings for oral presentation at TAUP 2015, Torino

Published
2015

99. VIP 2: experimental tests of the pauli exclusion principle for electrons

Author

Florin Sirghi, M. Iliescu, Diana Sirghi, C. Guaraldo, Johann Marton, J.-P. Egger, Hexi Shi, Mario Bragadireanu, S. Di Matteo, Matthias Laubenstein, Catalina Curceanu, K. Piscicchia, L. De Paolis, Michael Cargnelli, T. Ishiwatari, A. d'Uffizi, Alberto Clozza, O. Vazquez-Doce, E. Widmann, Carolina Berucci, Sergio Bertolucci, E. Sbardella, Johann Zmeskal, Sergio Bartalucci, D. Pietreanu, Edoardo Milotti, Laura Sperandio, T. Ponta, A. Pichler, Alessandro Scordo, Stefan Meyer Institut für subatomare Physik (SMI), Laboratori Nazionali di Frascati (LNF), Istituto Nazionale di Fisica Nucleare (INFN), CERN [Genève], Enrico Fermi Center for Study and Research | Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, National Institut for Nuclear Physics and Engineering (IFIN HH), National Institut for Nuclear Physics and Engineering, Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Université de Neuchâtel (UNINE), Laboratori Nazionali del Gran Sasso (LNGS), Università degli studi di Trieste = University of Trieste, Museo Storico della Fisica e Centro di Studi e Ricerche 'Enrico Fermi', Roma, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Fisica, Università di Trieste, Università degli studi di Trieste, Pichler, A, Bartalucci, S., Bertolucci, S., Berucci, C., Bragadireanu, M., Cargnelli, M., Clozza, A., Curceanu, C., Paolis, L. De, Matteo, S. Di, D’Uffizi, A., Egger, J. P., Guaraldo, C., Iliescu, M., Ishiwatari, T., Laubenstein, M., Marton, J., Milotti, Edoardo, Pietreanu, D., Piscicchia, K., Ponta, T., Sbardella, E., Scordo, A., Shi, H., Sirghi, D., Sirghi, F., Sperandio, L., Vazquez Doce, O., Widmann, E., Zmeskal, J., Pichler, A., Egger, J.-P., Milotti, E., and Vazquez-Doce, O.

Subjects
Particle physics, Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optic, Physics - Instrumentation and Detectors, Pauli exclusion principle, Quantum mechanics, X-ray measurements, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Physical and Theoretical Chemistry, Hadron, FOS: Physical sciences, Electron, Condensed Matter Physic, Hadrons, 01 natural sciences, Atomic, 03.65.-w, symbols.namesake, Optical and Plasma Physics, Atomic and Molecular Physics, 0103 physical sciences, Heavy Ions, Limit (mathematics), Detectors and Experimental Techniques, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Nuclear and High Energy Physic, Nuclear Physics, Physics, Thin Films, [PHYS]Physics [physics], Quantum Physics, X-ray measurement, 010308 nuclear & particles physics, Molecular, Instrumentation and Detectors (physics.ins-det), Surfaces and Interfaces, 32.30.Rj, Quantum mechanic, 07.85.Fv, symbols, and Optics, Quantum Physics (quant-ph), Order of magnitude
Abstract

Many experiments investigated the violation of the Pauli Exclusion Principle (PEP) since its discovery in 1925. The VIP (VIolation of the Pauli Principle) experiment tested the PEP by measuring the probability for an external electron to be captured and undergo a 2p to 1s transition during its cascading process, where the 1s state is already occupied by two electrons. This transition is forbidden by the Pauli Exclusion Principle. The VIP experiment resulted in a preliminary upper limit for the probability of the violation of the PEP of 4.7 x 10^{-29}. Currently a setup for the follow-up experiment VIP 2 is under preparation. The goal of this experiment is to improve the upper limit for the violation of the PEP by two orders of magnitude, by different improvements like enhanced energy resolution of the X-ray detectors and by implementing an active shielding. Here we report currently ongoing performance tests of the new parts of the setup., EXA 2014 proceedings in Hyperfine Interactions (2015), Springer International Publishing

Published
2015

100. High sensitivity tests of the Pauli Exclusion Principle with VIP2

Author

A. Pichler, M. Iliescu, T. Ponta, M. Bragadireanu, Alberto Clozza, Johann Zmeskal, Michael Cargnelli, Matthias Laubenstein, S. Di Matteo, Florin Sirghi, J. P. Egger, T. Ishiwatari, Kristian Piscicchia, O. Vazquez Doce, D. L. Sirghi, Catalina Curceanu, C. Guaraldo, Sergio Bartalucci, Hexi Shi, Eberhard Widmann, Edoardo Milotti, Laura Sperandio, Alessandro Scordo, Sergio Bertolucci, C. Berucci, Dorel Pietreanu, Johann Marton, Marton, J., Bartalucci, S., Bertolucci, S., Berucci, C., Bragadireanu, M., Cargnelli, M., Curceanu, C., Clozza, A., Matteo, S. Di, Egger, J. P., Guaraldo, C., Iliescu, M., Ishiwatari, T., Laubenstein, M., Milotti, Edoardo, Pichler, A., Pietreanu, D., Piscicchia, K., Ponta, T., Scordo, A., Shi, H., Sirghi, D. L., Sirghi, F., Sperandio, L., Doce, O. Vazquez, Widmann, E., and Zmeskal, J.

Subjects
experimental tests of fundamental principles, History, Physics - Instrumentation and Detectors, FOS: Physical sciences, Quantum mechanics, symmetrisation principle, Education, Orders of magnitude (entropy), symbols.namesake, Theoretical physics, Pauli exclusion principle, Atom, Limit (mathematics), Sensitivity (control systems), Nuclear Experiment (nucl-ex), Nuclear Experiment, General Theoretical Physics, Physics, Quantum Physics, Pillar, Instrumentation and Detectors (physics.ins-det), Quantum mechanic, Computer Science Applications, symbols, Underground laboratory, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Experimental methods, Quantum Physics (quant-ph)
Abstract

The Pauli Exclusion Principle is one of the most fundamental rules of nature and represents a pillar of modern physics. According to many observations the Pauli Exclusion Principle must be extremely well fulfilled. Nevertheless, numerous experimental investigations were performed to search for a small violation of this principle. The VIP experiment at the Gran Sasso underground laboratory searched for Pauli-forbidden X-ray transitions in copper atoms using the Ramberg-Snow method and obtained the best limit so far. The follow-up experiment VIP2 is designed to reach even higher sensitivity. It aims to improve the limit by VIP by orders of magnitude. The experimental method, comparison of different PEP tests based on different assumptions and the developments for VIP2 are presented., Comment: 6 pages, 3 figures, Proceedings DISCRETE2014 Conference

Published
2015
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