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137 results on '"Diana Sirghi"'

1. Enhancing Performances of the VOXES Bragg Spectrometer for XES Investigations

Author

Simone Manti, Fabrizio Napolitano, Alberto Clozza, Catalina Curceanu, Gabriel Moskal, Kristian Piscicchia, Diana Sirghi, and Alessandro Scordo

Subjects
XES, mosaic crystal, HAPG, Physics, QC1-999
Abstract

Utilizing a dispersive crystal for X-ray Emission Spectroscopy (XES) significantly enhances the energy resolution when compared with spectroscopy performed with just silicon drift detectors. This high resolution is particularly valuable for studying metals, as it offers essential insights into their electronic structures and chemical environments. Conducting such experiments in the laboratory, as opposed to synchrotron light sources, presents challenges due to the reduced intensities of X-ray tubes and, consequently, low signal rates, with the effect of increasing the acquisition time. In this study, we demonstrate that XES spectra can be acquired within a few hours for a CuNiZn metallic sample alloy while still maintaining a good energy resolution and a large dynamic range. This is achieved with the VOXES spectrometer, developed at INFN National Laboratories of Frascati (LNF), along with a background reduction procedure that enhances the signal from emission lines under study. This study is a showcase for improving the efficiency of XES in tabletop setup experiments.

Published
2024
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2. Characterization of the SIDDHARTA-2 Setup via the Kaonic Helium Measurement

Author

Francesco Sgaramella, Francesco Clozza, Leonardo Abbene, Francesco Artibani, Massimiliano Bazzi, Giacomo Borghi, Mario Bragadireanu, Antonino Buttacavoli, Michael Cargnelli, Marco Carminati, Alberto Clozza, Griseld Deda, Raffaele Del Grande, Luca De Paolis, Kamil Dulski, Carlo Fiorini, Carlo Guaraldo, Mihail Iliescu, Masahiko Iwasaki, Aleksander Khreptak, Simone Manti, Johann Marton, Marco Miliucci, Paweł Moskal, Fabrizio Napolitano, Szymon Niedźwiecki, Hiroaki Ohnishi, Kristian Piscicchia, Fabio Principato, Alessandro Scordo, Michal Silarski, Diana Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Kairo Toho, Marlene Tüchler, Johann Zmeskal, and Catalina Curceanu

Subjects
kaonic helium, silicon drift detectors, X-rays, kaon–nucleon interaction, Physics, QC1-999
Abstract

The aim of the SIDDHARTA-2 experiment is to perform the first measurement ever of the width and shift induced by the strong interaction to the 2p→1s energy transition of kaonic deuterium. This ambitious goal implies a challenging task due to the very low X-ray yield of kaonic deuterium, which is why an accurate and thorough characterization of the experimental apparatus is mandatory before starting the data-taking campaign. Helium-4 is an excellent candidate for this characterization since it exhibits a high yield in particular for the 3d→2p transition, roughly 100 times greater than that of the kaonic deuterium. The ultimate goal of the work reported in this paper is to study the performances of the full experimental setup in view of the kaonic deuterium measurement. This is carried out by measuring the values of the shift and the width for the 3d→2p energy transition of kaonic helium-4, induced by the strong interaction. The values obtained for these quantities, for a total integrated luminosity of ∼31/pb, are ε2p=2.0±1.2(stat)±1.5(syst)eV and Γ2p=1.9±5.7(stat)±0.7(syst)eV. The results, compared to the value of the shift measured by the SIDDHARTA experiment ε2p=0±6(stat)±2(syst)eV, show a net enhancement of the resolution of the apparatus, providing strong evidence of the potential to perform the challenging measurement of the kaonic deuterium.

Published
2024
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3. Silicon Drift Detectors’ Spectroscopic Response during the SIDDHARTA-2 Kaonic Helium Run at the DAΦNE Collider

Author

Marco Miliucci, Massimiliano Bazzi, Damir Bosnar, Mario Bragadireanu, Marco Carminati, Michael Cargnelli, Alberto Clozza, Catalina Curceanu, Griseld Deda, Luca De Paolis, Raffaele Del Grande, Carlo Fiorini, Carlo Guaraldo, Mihail Iliescu, Masahiko Iwasaki, Pietro King, Paolo Levi Sandri, Johann Marton, Paweł Moskal, Fabrizio Napolitano, Szymon Niedźwiecki, Kristian Piscicchia, Alessandro Scordo, Francesco Sgaramella, Hexi Shi, Michał Silarski, Diana Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Marlene Tüchler, Oton Vazquez Doce, and Johann Zmeskal

Subjects
X-ray precision spectroscopy, kaonic atoms, SIDDHARTA-2, Physics, QC1-999
Abstract

A large-area silicon drift detectors (SDDs) system has been developed by the SIDDHARTA-2 collaboration for high precision light kaonic atom X-ray spectroscopy at the DAΦNE collider of Istituto Nazionale di Fisica Nucleare—Laboratori Nazionali di Frascati. The SDDs’ geometry and electric field configuration, combined with their read-out electronics, make these devices suitable for performing high precision light kaonic atom spectroscopy measurements in the background of the DAΦNE collider. This work presents the spectroscopic response of the SDDs system during the first exotic atoms run of SIDDHARTA-2 with kaonic helium, a preliminary to the kaonic deuterium data taking campaign. The SIDDHARTA-2 spectroscopic system has good energy resolution and a 2 μs timing window which rejects the asynchronous events, scaling the background by a factor of 10−5. The results obtained for the first exotic atoms run of SIDDHARTA-2 prove this system to be ready to perform the challenging kaonic deuterium measurement.

Published
2021
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4. Kaonic Atoms to Investigate Global Symmetry Breaking

Author

Catalina Curceanu, Carlo Guaraldo, Diana Sirghi, Aidin Amirkhani, Ata Baniahmad, Massimiliano Bazzi, Giovanni Bellotti, Damir Bosnar, Mario Bragadireanu, Michael Cargnelli, Marco Carminati, Alberto Clozza, Luca De Paolis, Raffaele Del Grande, Carlo Fiorini, Mihail Iliescu, Masahiko Iwasaki, Pietro King, Paolo Levi Sandri, Johann Marton, Marco Miliucci, Paweł Moskal, Szymon Niedźwiecki, Shinji Okada, Kristian Piscicchia, Alessandro Scordo, Michał Silarski, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Marlene Tüchler, Gianlorenzo Utica, Oton Vazquez Doce, and Johann Zmeskal

Subjects
kaonic atoms, sigma terms, low-energy QCD, Mathematics, QA1-939
Abstract

Kaonic atoms measure the antikaon-nucleus interaction at almost zero relative energy, allowing one to determine basic low-energy quantum chromodynamics (QCD) quantities, namely, the antikaon-nucleon ( K ¯ N) scattering lengths. The latter are important for extracting the sigma terms which are built on the symmetry breaking part of the Hamiltonian, thereby providing a measure of chiral and SU(3) symmetries breaking. After discussing the sigma terms and their relations to the kaonic atoms, we describe the most precise measurement in the literature of kaonic hydrogen, performed at LNF-INFN by the SIDDHARTA experiment. Kaonic deuterium is still to be measured, and two experiments are planned. The first, SIDDHARTA-2 at LNF-INFN was installed on DA Φ NE in spring 2019 and will collect data in 2020. The second, E57 at J-PARC, will become operative in 2021.

Published
2020
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5. X-ray Detectors for Kaonic Atoms Research at DAΦNE

Author

Catalina Curceanu, Aidin Amirkhani, Ata Baniahmad, Massimiliano Bazzi, Giovanni Bellotti, Carolina Berucci, Damir Bosnar, Mario Bragadireanu, Michael Cargnelli, Alberto Clozza, Raffaele Del Grande, Carlo Fiorini, Francesco Ghio, Carlo Guaraldo, Mihail Iliescu, Masaiko Iwasaki, Paolo Levi Sandri, Johann Marton, Marco Miliucci, Pavel Moskal, Szymon Niedźwiecki, Shinji Okada, Dorel Pietreanu, Kristian Piscicchia, Alessandro Scordo, Hexi Shi, Michal Silarski, Diana Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Hideyuki Tatsuno, Oton Vazquez Doce, Eberhard Widmann, and Johann Zmeskal

Subjects
kaonic atoms, strong interaction, X-ray detectors, Physics, QC1-999
Abstract

This article presents the kaonic atom studies performed at the INFN National Laboratory of Frascati (Laboratori Nazionali di Frascati dell’INFN, LNF-INFN) since the opening of this field of research at the DA Φ NE collider in early 2000. Significant achievements have been obtained by the DA Φ 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
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6. High precision Kaonic Deuterium measurement at the DAΦNE collider: the SIDDHARTA-2 experiment and the SIDDHARTINO run

Author

Marco Miliucci, Massimiliano Bazzi, Damir Bosnar, Mario Bragadireanu, Marco Carminati, Michael Cargnelli, Alberto Clozza, Catalina Curceanu, Griseld Deda, Luca De Paolis, Raffaele Del Grande, Carlo Fiorini, Carlo Guaraldo, Mihail Iliescu, Masahiko Iwasaki, Pietro King, Paolo Levi Sandri, Johann Marton, Paweł Moskal, Fabrizio Napolitano, Szymon Nied´zwiecki, Kristian Piscicchia, Alessandro Scordo, Francesco Sgaramella, Hexi Shi, Michał Silarski, Diana Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Marlene T¨uchler, Oton Vazquez Doce, and Johann Zmeskal

Subjects
mesonic, solid-state detectors, radiation detectors, hyperonic and antiprotonic atoms and molecules, x- and Γ-ray spectroscopy, kaonic atoms, SIDDHARTA-2
Abstract

The kaonic deuterium 2p→1s transition X-ray measurement, a fundamental information needed for a deeper understanding of the Quantum ChromoDynamics (QCD) in the strangeness sector, is still missing. The SIDDHARTA-2 collaboration is now ready to achieve this unprecedented result thanks to the dedicated experimental apparatus that will allow to obtain the values of the kaonic deuterium K-transitions with a precision comparable to the most precise kaonic hydrogen measurement to-date performed by SIDDHARTA in 2009. Both the kaonic hydrogen and kaonic deuterium X-ray spectroscopy measurements of the de-excitation towards the fundamental level are a direct probe on KN interaction at threshold, as opposed to the scattering experiments which need an extrapolation to zero energy. Combining these results through the Deser-Truemann like formula, the isospin-dependent kaon-nucleon scattering lengths can be obtained in a model-independent way. The SIDDHARTA-2 setup is presently installed at the DAΦNE (Double Annular Φ Factory for Nice Experiments) collider of Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali di Frascati and it is ready to perform the challening kaonic deuterium measurement. Thispaper provides an overview on the SIDDHARTA-2 experimental apparatus and a preliminary result of the kaonic helium run, preparatory for the SIDDHARTA-2 data taking campaign, is also presented.

Published
2022
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7. Summary of the $K^- pp$ bound-state observation in E15 and future prospects

Author

Fuminori Sakuma, Shuhei Ajimura, Takaya Akaishi, Hidemitsu Asano, Massimiliano Bazzi, George Beer, Hyoungchan Bhang, Mario Bragadireanu, Paul Buehler, Luigi Busso, Michael Cargnelli, Seonho Choi, Alberto Clozza, Catalina Curceanu, Shun Enomoto, Hiroyuki Fujioka, Yuya Fujiwara, Tomokazu Fukuda, Carlo Guaraldo, Tadashi Hashimoto, Ryugo S. Hayano, Toshihiko Hiraiwa, Masami Iio, Mihai Iliescu, Kentaro Inoue, Yosuke Ishiguro, Takashi Ishikawa, Shigeru Ishimoto, Kenta Itahashi, Masahiko Iwasaki, Masaaki Iwai, Koki Kanno, Kazuma Kato, Yuko Kato, Shingo Kawasaki, Paul Kienle, Hiroshi Kou, Yue Ma, Johann Marton, Yasuyuki Matsuda, Marco Miliucci, Yutaka Mizoi, Ombretta Morra, Rie Murayama, Tomofumi Nagae, Hiroyuki Noumi, Hiroaki Ohnishi, Shinji Okada, Haruhiko Outa, Kyoichiro Ozawa, Kristian Piscicchia, Yuta Sada, Atsushi Sakaguchi, Masaharu Sato, Alessandro Scordo, Michiko Sekimoto, Hexi Shi, Kotaro Shirotori, Diana Sirghi, Florin Sirghi, Shoji Suzuki, Takatoshi Suzuki, Kiyoshi Tanida, Hideyuki Tatsuno, Makoto Tokuda, Dai Tomono, Akihisa Toyoda, Kyo Tsukada, Oton Vázquez Doce, Eberhard Widmann, Takumi Yamaga, Toshimitsu Yamazaki, Chihiro Yoshida, Qi Zhang, and Johann Zmeskal

Abstract

The possible existence of deeply-bound $\bar K$-nuclear bound states, kaonic nuclei, has been widely discussed as products of the strongly attractive $\bar K$Ninteraction in I = 0 channels. Investigations of those exotic states will provide us unique information of the $\bar K$Ninteraction below the threshold, which is still not fully understood so far. Recently, we observed the simplest kaonic nuclei, $\bar K$NN, having a much deeper binding energy than normal nuclei via inflight (K−,N) reactions at the J-PARC E15 experiment. For further studies, we have proposed a series of experimental programs for the systematic investigation of light kaonic nuclei, from $\bar K$N(Λ(1405)) to $\bar K$NNNN. We will measure the $\bar K$NNN(A= 3) system at the new experiment approved as J-PARC E80, as a first step toward a comprehensive study.

Published
2022

8. Kaonic atoms measurements at the DAΦNE collider : the SIDDHARTA-2 experiment

Author

Catalina Curceanu, Marco Miliucci, Massimiliano Bazzi, Damir Bosnar, Mario Bragadireanu, Marco Carminati, Michael Cargnelli, Alberto Clozza, Griseld Deda, Luca De Paolis, Raffaele Del Grande, Carlo Fiorini, Carlo Guaraldo, Mihail Iliescu, Masahiko Iwasaki, Pietro King, Paolo Levi Sandri, Johann Marton, Paweł Moskal, Fabrizio Napolitano, Szymon Niedźwiecki, Kristian Piscicchia, Alessandro Scordo, Francesco Sgaramella, Hexi Shi, Michał Silarski, Diana Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Marlene Tüchler, Oton Vazquez Doce, and Johann Zmeskal

Subjects
Physics, QC1-999, Nuclear Theory, Physics::Accelerator Physics, Physics::Atomic Physics, Nuclear Experiment
Abstract

The X-ray spectroscopy measurements of light kaonic atoms’ deexcitation towards the fundamental level provide unique information on the low-energy Quantum ChromoDynamics (QCD) in the strangeness sector, being a direct probe of the kaon/nucleon interaction at threshold, unobtainable through the scattering experiments. In this framework, the SIDDHARTA-2 collaboration is going to perform the first kaonic deuterium 2p → 1s transition measurement at the DAΦNE collider of Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali di Frascati. Combining this measurement with the kaonic hydrogen one performed by SIDDHARTA in 2009 it will be possible to obtain, in a model-independent way, the isospin-dependent antikaon-nucleon scattering lengths. The paper introduces the SIDDHARTA-2 setup, an upgraded version with respect to the one used for the kaonic hydrogen measurement, dedicated to the ambitious kaonic deuterium measurement, together with the preliminary results obtained during the kaonic helium run, preparatory for the SIDDHARTA-2 data taking campaign.

Published
2022

9. 'K−pp', a K‾-meson nuclear bound state, observed in 3He(K−,Λp)n reactions

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Meson, 010308 nuclear & particles physics, 0103 physical sciences, Bound state, Analytical chemistry, Invariant mass, Strangeness, 010306 general physics, 01 natural sciences
Abstract

We observed a distinct peak in the Λp invariant mass spectrum of He 3 ( K − , Λ p ) n , well below m K + 2 m p , i.e., the mass threshold of the K − to be bound to two protons. By selecting a relatively large momentum-transfer region q = 350 ∼ 650 MeV/c, one can kinematically separate the peak from the quasi-free process, K ‾ N → K ‾ N followed by the non-resonant absorption by the two spectator-nucleons K ‾ N N → Λ N . We found that the simplest fit to the observed peak gives us a Breit–Wigner pole position at B Kpp = 47 ± 3 ( s t a t . ) − 6 + 3 ( s y s . ) MeV having a width Γ Kpp = 115 ± 7 ( s t a t . ) − 20 + 10 ( s y s . ) MeV, and the S-wave Gaussian reaction form-factor parameter Q Kpp = 381 ± 14 ( s t a t . ) − 0 + 57 ( s y s . ) MeV/c, as a new form of the nuclear bound system with strangeness – “ K − p p ”.

Published
2019
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10. Kaonic Atoms Measurements at DA Φ NE: SIDDHARTA-2 and Future Perspectives

Author

D. Bosnar, Magdalena Skurzok, J. Marton, O. Vazquez Doce, L. De Paolis, Hexi Shi, C. Guaraldo, Fabrizio Napolitano, K. Piscicchia, Catalina Curceanu, Massimiliano Bazzi, Carlo Fiorini, M. Iliescu, A. Spallone, Florin Sirghi, Alberto Clozza, M. Cargnelli, Marco Miliucci, M. Tüchler, Paweł Moskal, Diana Sirghi, Alessandro Scordo, P. Levi Sandri, R. Del Grande, Pietro King, Szymon Niedźwiecki, G. Deda, Marco Carminati, F. Sgaramella, Mario Bragadireanu, Johann Zmeskal, Michał Silarski, and M. Iwasaki

Subjects
Physics, 010308 nuclear & particles physics, Scattering, Nuclear Theory, Phase (waves), Extrapolation, Zero-point energy, 01 natural sciences, Atomic and Molecular Physics, and Optics, law.invention, Nuclear physics, Deuterium, law, Isospin, 0103 physical sciences, Physics::Accelerator Physics, Physics::Atomic Physics, Collider, Spectroscopy, Nuclear Experiment, 010303 astronomy & astrophysics
Abstract

High precision light kaonic atoms X-ray spectroscopy is a unique tool for performing experiments equivalent to scattering at vanishing relative energies, to determine the antikaon–nucleus interaction at threshold without the need of extrapolation to zero energy. The SIDDHARTA-2 collaboration is going to perform the first measurement of kaonic deuterium transitions to the fundamental level, which is mandatory to extract the isospin dependent antikaon–nucleon scattering lengths. The SIDDHARTA-2 experiment is presently installed on the DA $$\Phi $$ NE collider of INFN-LNF. The preliminary results obtained during the machine commissioning phase in preparation for the kaonic deuterium data taking campaign, together with future perspectives for extreme precision kaonic atoms studies at DA $$\Phi $$ NE are presented.

Published
2021

11. Silicon drift detectors technology for high precision light Kaonic atoms spectroscopic measurements at the DA Φ NE collider

Author

L. De Paolis, Marco Miliucci, G. Deda, Johann Marton, M. Iliescu, D. Bosnar, Magdalena Skurzok, C. Guaraldo, P. Levi Sandri, Fabrizio Napolitano, K. Piscicchia, Mario Bragadireanu, Carlo Fiorini, Alberto Clozza, R. Del Grande, J. Zmeskal, Florin Sirghi, Catalina Curceanu, Diana Sirghi, M. Bazzi, Hexi Shi, Michael Cargnelli, M. Iwasaki, O. Vazquez Doce, Marco Carminati, Szymon Niedźwiecki, Paweł Moskal, Michał Silarski, A. Spallone, F. Sgaramella, P. King, Alessandro Scordo, and M. Tüchler

Subjects
Physics, Silicon, Strong interaction, Detector, Resolution (electron density), chemistry.chemical_element, Strangeness, law.invention, Nuclear physics, Data acquisition, chemistry, law, Collider, Line (formation)
Abstract

The SIDDHARTA-2 collaboration developed an innovative large area Silicon Drift Detectors technology to perform high precision spectroscopy for the investigation of the K¯ N strong interaction in the low-energy regime, in the strangeness sector. The SIDDHARTA-2 devices take advantage of special geometry to maximize the experimental geometrical acceptance together with a dedicated Front End electronics able to provide energy resolution of 163 1 eV at 170 K for the Fe Kα line and a linear response better than 10-3, both preserved along the whole DAQ analog-digital chain in a colliding beams challenging environment. In this work the SIDDHARTA-2 Silicon Drift Detectors spectroscopic characterization and the preliminary results obtained at the DAΦNE collider of Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali di Frascati are presented.

Published
2021
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12. (\bar{K}\)-Nuclear Bound State at J-PARC

Author

G. Beer, Michiko Sekimoto, L. Busso, Alessandro Scordo, Mario Bragadireanu, Ryugo S. Hayano, T. Hashimoto, K. Inoue, C. Guaraldo, Shoji Suzuki, Koki Kanno, Shigeru Ishimoto, O. Morra, Makoto Tokuda, Y. Sada, H. Asano, Johannes Zmeskal, Akihisa Toyoda, Diana Sirghi, Toshihiko Hiraiwa, M. Sato, Johann Marton, Michael Cargnelli, Y. Ishiguro, Paul Buehler, K. Kato, Y. Kato, Fuminori Sakuma, Paul Kienle, Kyo Tsukada, Kenta Itahashi, H. Tatsuno, Ken Suzuki, M. Iliescu, Yasuyuki Matsuda, Kotaro Shirotori, Kristian Piscicchia, T. Yamaga, Kiyoshi Tanida, Hexi Shi, H. Kou, Haruhiko Outa, Hiroyuki Noumi, Yue Ma, Takashi Ishikawa, S. Kawasaki, Oton Vazquez Doce, Hyoungchan Bhang, Catalina Curceanu, Hiroyuki Fujioka, Carolina Berucci, Tomokazu Fukuda, Y. Fujiwara, Florin Sirghi, Shinji Okada, D. Tomono, Takatoshi Suzuki, Atsushi Sakaguchi, S. Ajimura, Masami Iio, Hiroaki Ohnishi, Yutaka Mizoi, Toshimitsu Yamazaki, Tomofumi Nagae, Shun Enomoto, Seonho Choi, Qi Zhang, Eberhard Widmann, and Masahiko Iwasaki

Subjects
Nuclear physics, Physics, Bar (music), Bound state, J-PARC
Published
2020
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13. A novel approach to the measurement of the hyperon nucleon/s interaction by AMADEUS

Author

Kristian Piscicchia, Michael Cargnelli, Raffaele Del Grande, Laura Fabbietti, Johann Marton, Pawel Moskal, Àngels Ramos, Alessandro Scordo, Diana Sirghi, Magdalena Skurzok, Oton Vazquez Doce, Slavomir Wycech, Johann Zmeskal, Paolo Branchini, Eryk Czerwinski, Veronica De Leo, Erika De Lucia, Alessandro Di Cicco, Eleonora Diociaiuti, Paolo Fermani, Salvatore Fiore, Matteo Martini, Elena Perez Del Rio, Andrea Selce, Michal Silarski, and Catalina Curceanu

Abstract

The AMADEUS collaboration is investigating the low-energy antikaon interactions with nucleons and nuclei, taking advantage of the lowmomentum antikaons beam provided by the DAΦNE collider at LNF-INFN. In this work a novel technique is outlined for the measurement of the hyperonnucleon two and three body scattering cross sections. The method consists in producing hyperons by antikaons atomic captures in light nuclear targets, and extrapolating the cross sections from the measurement of the yields of the corresponding elastic final state interactions of the hyperons. The feasibility of this kind of analyses is shown by comparison of calculated Σ0 production in 4He by K− absorption on three nucleons, with a sample of K−12C absorption measured by AMADEUS in collaboration with KLOE. The feasibility of a dedicated high statistics measurement is discussed.

Published
2022
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14. Comparison of 3ΛH/4ΛH production cross-section via (K−, π0) reaction at J-PARC

Author

Takaya Akaishi, Hidemitsu Asano, Xurong Chen, Alberto Clozza, Catalina Curceanu, Raffaele Del Grande, Carlo Guaraldo, Chengdong Han, Tadashi Hashimoto, Mihai Iliescu, Kentaro Inoue, Shigeru Ishimoto, Kenta Itahashi, Masahiko Iwasaki, Yue Ma, Rie Murayama, Marco Miliucci, Hiroyuki Noumi, Hiroyuki Ohnishi, Shinji Okada, Haruhiko Outa, Kristian Piscicchia, Yuta Sada, Atsushi Sakaguchi, Fuminori Sakuma, Masaharu Sato, Alessandro Scordo, Diana Sirghi, Florin Sirghi, Kotaro Shirotori, Shoji Suzuki, Kiyoshi Tanida, Taiga Toda, Megumu Tokuda, Masato Tsuruta, Takumi Yamaga, Xiaohua Yuan, Hongqiang Zhang, Pengming Zhang, and Yapeng Zhang

Abstract

Recent heavy-ion collision experiments reported a surprisingly short lifetime for the hypertriton, which has been recognized as the hypertriton lifetime puzzle. Our J-PARC E73 experiment contributes to solve this puzzle with an independent experimental method by employing 3He(K−, π0) 3ΛH reaction. In this contribution, we will demonstrate our capability to provide 3ΛH binding energy information by deriving the production cross section ratio, σ3ΛH/σ4ΛH. The production cross section data for 3ΛH and 4ΛH are already available as the pilot run of E73 experiment and data analysis is in progress.

Published
2022
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15. Search for a remnant violation of the Pauli exclusion principle in a Roman lead target

Author

Matthias Laubenstein, Marco Miliucci, Diana Sirghi, Michael Cargnelli, Massimiliano Bazzi, Dorel Pietreanu, Johann Marton, Luca De Paolis, C. Guaraldo, Florin Sirghi, Mario Bragadireanu, Edoardo Milotti, Catalina Curceanu, Kristian Piscicchia, Laura Sperandio, Raffaele Del Grande, Oton Vazquez Doce, Sergio Bertolucci, Johann Zmeskal, Carlo Fiorini, A. Amirkhani, Sergio Bartalucci, Hexi Shi, Alessandro Scordo, A. Pichler, M. Iliescu, Alberto Clozza, J. P. Egger, Piscicchia, K., Milotti, E., Amirkhani, A., Bartalucci, S., Bertolucci, S., Bazzi, M., Bragadireanu, M., Cargnelli, M., Clozza, A., Del Grande, R., Depaolis, L., Egger, J. -P., Fiorini, C., Guaraldo, C., Iliescu, M., Laubenstein, M., Marton, J., Miliucci, M., Pichler, A., Pietreanu, D., Scordo, A., Shi, H., Sirghi, D. L., Sirghi, F., Sperandio, L., Vazquezdoce, O., Zmeskal, J., and Curceanu, C.

Subjects
Particle physics, Physics and Astronomy (miscellaneous), Cosmic ray, lcsh:Astrophysics, 02 engineering and technology, Electron, 01 natural sciences, Quantum mechanics, Tests of fundamental symmetries, Orders of magnitude (bit rate), X-ray, symbols.namesake, Lead (geology), Pauli exclusion principle, X-rays, 0103 physical sciences, lcsh:QB460-466, 0202 electrical engineering, electronic engineering, information engineering, Tests of fundamental symmetrie, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, Spin-statistics connection, symbols, lcsh:QC770-798, 020201 artificial intelligence & image processing, National laboratory
Abstract

In this paper we report on the results of two analyses of the data taken with a dedicated VIP-Lead experiment at the Gran Sasso National Laboratory of the INFN. We use measurements taken in an environment that is especially well screened from cosmic rays, with a metal target made of “Roman lead” which is characterised by a low level of intrinsic radioactivity. The analyses lead to an improvement, on the upper bounds of the Pauli Exclusion Principle violation for electrons, which is more than one (four) orders of magnitude, when the electron-atom interactions are described in terms of scatterings (or close encounters) respectively.

Published
2020
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16. New Concepts in Tests of the Pauli Exclusion Principle in Bulk Matter

Author

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

Subjects
Physics, electron diffusion, 010308 nuclear & particles physics, quantum mechanics, General Physics and Astronomy, experimental tests, quantum mechanic, 01 natural sciences, Theoretical physics, symbols.namesake, Pauli exclusion principle, electron capture, experimental test, 0103 physical sciences, symbols
Abstract

The standard scheme of several tests of the Pauli Exclusion Principle in bulk matter — both in the experiment and in the subsequent data analysis — has long been based on the seminal paper by E. Ramberg, G.A. Snow [Phys. Lett. B 238, 438 (1990)]. The ideas exposed in that paper are so simple and immediate that they have long gone unchallenged. However, while some of the underlying approximations are still valid, other parts of the article must be reconsidered. Here, we discuss some new concepts thatare related to the motion of the electrons in the test metal (the “target” of the experiment) and which have been recently studied in the framework of the VIP-2 Collaboration.

Published
2020

17. Studies of kaonic atoms at the DAΦNE collider: From SIDDHARTA to SIDDHARTA-2

Author

Michał Silarski, Paolo Levi Sandri, Mario Bragadireanu, Florin Sirghi, A. Spallone, C. Guaraldo, Marco Miliucci, Johann Marton, Laura Fabbietti, M. Iwasaki, Kristian Piscicchia, Carlo Fiorini, Raffaele Del Grande, Oton Vazquez Doce, Diana Sirghi, Massimiliano Bazzi, Marco Carminati, Catalina Curceanu, Magdalena Skurzok, Dorel Pietreanu, A. Baniahmad, M. Iliescu, Luca De Paolis, Shinji Okada, Johann Zmeskal, Damir Bosnar, Paweł Moskal, Alessandro Scordo, Michael Cargnelli, Szymon Niedźwiecki, M. Tüchler, A. Amirkhani, Eberhard Widmann, and Alberto Clozza

Subjects
History, Strange quark, Kaonic hydrogen, Strong interaction, Nuclear Theory, Electron, 01 natural sciences, 7. Clean energy, Education, law.invention, Nuclear physics, law, 0103 physical sciences, Physics::Atomic Physics, 010306 general physics, Collider, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Scattering, NATURAL SCIENCES. Physics, Computer Science Applications, PRIRODNE ZNANOSTI. Fizika, Deuterium, Physics::Accelerator Physics, High Energy Physics::Experiment, Nucleon
Abstract

The DAΦNE electron-positron collider of the Laboratori Nazionali di Frascati of INFN is a worldwide unique low-energy kaon source and for this reason is suitable for low-energy kaon physics like kaonic atoms and kaon-nucleons/nuclei interaction studies. Kaonic atoms are atomic systems where an electron is replaced by a negatively charged kaon, containing the strange quark, which interacts in the lowest orbits with the nucleus also by the strong interaction. As a result, their study offers the unique opportunity to perform experiments equivalent to scattering at vanishing relative energy. This allows to study the strong interaction between the antikaon and the nucleon or the nucleus “at threshold”, without the need of ad hoc extrapolation to zero energy, as in scattering experiments. 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 Silicon-Drift X-ray Detectors. The measurement of kaonic deuterium will be realized in the near future by SIDDHARTA-2, a major upgrade of SIDDHARTA.

Published
2020
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18. The key role of the Silicon Drift Detectors in testing the Pauli Exclusion Principle for electrons: the VIP-2 experiment

Author

Marco Miliucci, Johann Zmeskal, Sergio Bartalucci, Hexi Shi, Alessandro Scordo, Florin Sirghi, Mario Bragadireanu, J.-P. Egger, D. Pietreanu, S. Bertolucci, Matthias Laubenstein, A. Pichler, K. Piscicchia, Edoardo Milotti, T. Mazzocchi, Johann Marton, A. Amirkhani, Alberto Clozza, Laura Sperandio, M. Bazzi, R. Del Grande, L. De Paolis, Diana Sirghi, C. Guaraldo, Catalina Curceanu, Michael Cargnelli, Carlo Fiorini, M. Veith, M. Iliescu, O. Vazquez Doce, Paolis, L De, Amirkhani, A, Bartalucci, S, Bertolucci, S, Bazzi, M, Bragadireanu, M, Cargnelli, M, Clozza, A, Curceanu, C, Grande, R Del, Egger, J P, Fiorini, C, Guaraldo, C, Iliescu, M, Laubenstein, M, Marton, J, Mazzocchi, T, Miliucci, M, Milotti, E, Pichler, A, Pietreanu, D, Piscicchia, K, Scordo, A, Shi, H, Sirghi, D L, Sirghi, F, Sperandio, L, Vazquez Doce, O, Veith, M, and Zmeskal, J

Subjects
Physics, Paper, History, Silicon, 010308 nuclear & particles physics, Detector, chemistry.chemical_element, Electron, 01 natural sciences, Quantum mechanic, Quantum mechanics, Experimental tests, Spin-statistics connection, Computer Science Applications, Education, ddc, symbols.namesake, Pauli exclusion principle, chemistry, 0103 physical sciences, symbols, Key (cryptography), 010306 general physics
Abstract

The VIP experiment performed an accurate investigation of the Pauli Exclusion Principle for electrons. The apparatus was installed in the Gran Sasso Laboratories of the National Institute of Nuclear Physic in Italy, an underground environment with an extremely low cosmic background. The aim of the experiment was to test the Pauli Exclusion Principle for electrons in a copper target circulated by a Direct Current (DC) current, searching for X-rays emission due to an atomic transition forbidden by Pauli exclusion principle, from the L shell to the K shell of copper when the K shell is already occupied by two electrons. VIP set an upper limit on the Pauli exclusion principle violation probability 1/2β 2 –29. The goal of the upgraded VIP-2 experiment, presently in data taking at Gran Sasso Laboratories, is to improve this limit by two orders of magnitude. The VIP-2 experimental apparatus, in which the Silicon Drift Detectors have the key role of X-ray detectors, and preliminary results are presented.

Published
2020

19. Probing low-energy QCD with kaonic atoms at $DA\Phi NE$

Author

Michael Cargnelli, Claude Amsler, Johann Marton, Paul Alois Buhler, M. Iwasaki, Florin Sirghi, P. Levi Sandri, Michał Silarski, Alessandro Scordo, Johann Zmeskal, O. Vazquez Doce, Magdalena Skurzok, K. Piscicchia, Alberto Clozza, Marco Miliucci, Laura Fabbietti, A. Amirkhani, Mario Bragadireanu, M. Bazzi, A. Baniahmad, Marco Carminati, L. De Paolis, M. Iliescu, R. Del Grande, M. Tüchler, C. Guaraldo, Diana Sirghi, Szymon Niedzwiecki, D. Bosnar, Catalina Curceanu, E. Widmann, A. Spallone, Carlo Fiorini, Shinji Okada, and Paweł Moskal

Subjects
Physics, Quantum chromodynamics, Nuclear physics, History, Low energy, Computer Science Applications, Education
Abstract

X-ray spectroscopy of kaonic atoms provides a versatile tool to study the strong interaction at low energies via a direct observation of its influence on the ground state of kaonic hydrogen atoms. The SIDDHARTA experiment provided precise results on the energy shift and width of the kaonic hydrogen 1s state induced by the strong interaction. To enable the extraction of the antikaon-nucleon scattering lengths a0 and a1, SIDDHARTA-2 aims to determine the energy shift and width in kaonic deuterium with precisions of 30 eV and 75 eV, respectively. This measurement is aggravated by the low kaonic deuterium X-ray yield and a high background environment and will only be possible by implementing a severe upgrade on the SIDDHARTA apparatus.

Published
2020

20. K - Pp bound system at J-PARC

Author

Eberhard Widmann, M. Iliescu, Haruhiko Outa, Hiroaki Ohnishi, K. Inoue, Yasuyuki Matsuda, Hiroyuki Noumi, Takashi Ishikawa, Makoto Tokuda, Masahiko Iwasaki, H. Tatsuno, Akihisa Toyoda, Toshimitsu Yamazaki, D. Tomono, M. Sato, Paul Kienle, Ken Suzuki, Michael Cargnelli, Kotaro Shirotori, Florin Sirghi, Hiroyuki Fujioka, Atsushi Sakaguchi, G. Beer, Oton Vazquez Doce, Shun Enomoto, Shinji Okada, Yue Ma, Hyoungchan Bhang, Mario Bragadireanu, Paul Buehler, K. Kato, Alessandro Scordo, T. Hashimoto, H. Kou, O. Morra, Johann Marton, Catalina Curceanu, Johannes Zmeskal, Y. Kato, Carolina Berucci, S. Kawasaki, Takatoshi Suzuki, Seonho Choi, L. Busso, S. Ajimura, Tomofumi Nagae, Masami Iio, Fuminori Sakuma, Y. Ishiguro, Qi Zhang, Y. Sada, Tomokazu Fukuda, Y. Fujiwara, Yutaka Mizoi, Kyo Tsukada, C. Guaraldo, Ryugo S. Hayano, H. Asano, Toshihiko Hiraiwa, Shigeru Ishimoto, Koki Kanno, Shoji Suzuki, Kristian Piscicchia, T. Yamaga, Kiyoshi Tanida, Hexi Shi, Diana Sirghi, Michiko Sekimoto, and Kenta Itahashi

Subjects
Physics, Binding energy, Bound state, J-PARC, State (functional analysis), Atomic physics
Abstract

The K¯NN bound system, symbolically denoted as “K−pp”, is the simplest K¯-nuclear bound system which has been widely discussed as a consequence of the strongly attractive K¯N interaction in I = 0 channels. Many theoretical works have pointed out the existence of the “K−pp” bound system, but the calculated properties such as the binding energy and the width spread out due to the uncertainty of the K¯N interaction below the K¯+N mass threshold. Experimentally, there are several reports on observation of a “K−pp” candidate with the binding energy of around 100 MeV, however, no definitive evidence was available so far. At J-PARC, we conducted a experimental search for the “K−pp” bound system using K− + 3He reaction at 1.0 GeV/c where the “K−pp” is expected to be directly produced via the (K−, n) reaction. We finally observed a bound state below the K− +p+p mass threshold in the Λpn final state, which can be interpreted as the “K− pp” bound state. The possible existence of the “K− pp” state is discussed from both aspects of production and decay.

Published
2020

21. Testing the Pauli Exclusion Principle in the Cosmic Silence

Author

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

Subjects
Physics, COSMIC cancer database, 010308 nuclear & particles physics, quantum mechanics, General Physics and Astronomy, experimental tests, quantum mechanic, X-ray detectors, 01 natural sciences, Silence, symbols.namesake, Theoretical physics, Pauli exclusion principle, experimental test, 0103 physical sciences, symbols
Abstract

The VIP Collaboration is performing high precision tests of the Pauli Exclusion Principle for electrons in the extremely low cosmic background environment of the Underground Gran Sasso Laboratories of INFN (Italy). The experimental technique consists in introducing a DC current in a copper conductor, searching for Kα PEP-forbidden atomic transitions when the K shell is already occupied by two electrons. VIP set an upper limit on the PEP-violation probability (½) x β^2 < 4.7 × 10^−29. The aim of the upgraded VIP-2 experiment is to improve this result at least by two orders of magnitude. The improved experimental setup and the results of a preliminary data analysis, corresponding to the the first run of the VIP-2 data taking (2016–2017), will be presented.

Published
2020
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22. Recent AMADEUS studies of low-energy $K^{−}$ - nucleus/nuclei interactions

Author

Florin Sirghi, Kristian Piscicchia, Michael Cargnelli, Alessandro Scordo, M. Iliescu, Massimiliano Bazzi, Paolo Levi Sandri, Mario Bragadireanu, Luca De Paolis, Oton Vazquez Doce, A. Spallone, Magdalena Skurzok, Damir Bosnar, Johann Zmeskal, Raffaele Del Grande, Paweł Moskal, Marco Miliucci, Diana Sirghi, Eberhard Widmann, C. Guaraldo, Catalina Curceanu, Carlo Fiorini, S. Wycech, Laura Fabbietti, Michał Silarski, Angels Ramos, and Johann Marton

Subjects
Nuclear physics, Physics, Light nucleus, medicine.anatomical_structure, Low energy, strangeness, medicine, antikaon interactions in nuclear matter, Strangeness, Nucleus
Abstract

We briefly report the recent results obtained by the AMADEUS collaboration on experimental studies of the K\(^-\) low-energy interactions with light nuclei and outline the future perspectives.

Published
2020

23. Kaonic atoms experiment at the $DA\Phi NE$ collider by SIDDHARTA/SIDDHARTA-2

Author

Magdalena Skurzok, M. Bazzi, A. Spallone, M. Iwasaki, Oton Vazquez Doce, Florin Sirghi, Rafael Del Grande, Paweł Moskal, Alberto Clozza, Carlo Fiorini, C. Guaraldo, Laura Fabbietti, Marco Carminati, Mario Bragadireanu, P. Levi Sandri, Johann Zmeskal, Johann Marton, Alessandro Scordo, Michał Silarski, Abdollah Amirkhani, Mariana Iliescu, Eberhard Widmann, M. Tüchler, Susumu Okada, Szymon Niedźwiecki, Diana Sirghi, Catalina Curceanu, A. Baniahmad, L. De Paolis, Marco Miliucci, D. Pietreanu, D. Bosnar, Kristian Piscicchia, and Michael Cargnelli

Subjects
Physics, 010308 nuclear & particles physics, QC1-999, 01 natural sciences, law.invention, Nuclear physics, law, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, 010306 general physics, Collider, Nuclear Experiment
Abstract

The excellent quality kaon beam provided by the DA\PhiΦNE collider of LNF-INFN (Italy) together with SIDDHARTA/SIDDHARTA-2 new experimental techniques, as very precise and fast-response X-ray detectors, allow to perform unprecedented measurements on light kaonic atoms crucial for a deeper understanding of the low-energy quantum chromodynamics (QCD) in the strangeness sector. In this paper an overview of the main results obtained by the SIDDHARTA collaboration, as well as the future plans related to the SIDDHARTA-2 experiment, are discussed.

Published
2020

24. VIP-2 - Testing spin-statistics for electrons with high sensitivity

Author

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

Subjects
Paper, Physics, History, Pauli principle, quantum mechanics, experimental test, quantum mechanic, Electron, 01 natural sciences, ddc, 010305 fluids & plasmas, Computer Science Applications, Education, 0103 physical sciences, Sensitivity (control systems), Atomic physics, 010306 general physics, Spin-½
Abstract

The VIP-2 (VIolation of the Pauli Exclusion Principle) experiment conducted at the Gran Sasso underground laboratory (LNGS) of INFN is searching for possible tiny violations of standard quantum mechanics in copper atoms with extremely high sensitivity. We investigate atomic transitions with precision X-ray spectroscopy in order to test the Pauli Exclusion Principle (PEP) and therefore the spin-statistics theorem. We present the experimental method for the search for "anomalous" (i.e. Pauli-forbidden) X-ray transitions in copper atoms, produced by "new" electrons, which could have a tiny probability to undergo a Pauli-forbidden transition to the 1s ground state already occupied by two electrons. We describe the VIP-2 experimental setup and its recent optimisations. Presently VIP-2 is taking data at LNGS. The goal of VIP-2 is to test PEP for electrons with unprecedented accuracy, down to a limit in the probability that PEP is violated at the level of 10-31 (and using a more elaborate analysis even 10-40). We present current experimental results.

Published
2020
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25. Kaonic Atom Experiments at J-PARC

Author

Johann Marton, K. Itahashi, James P. Hays-Wehle, Daniel S. Swetz, O. Morra, M. Iliescu, H. Asano, L. Busso, M. Bazzi, Tomokazu Fukuda, Shinji Okada, C. Guaraldo, Diana Sirghi, T. Yamazaki, Joseph W. Fowler, Toshihiko Hiraiwa, A. Takamine, M. Sekimoto, Tomofumi Nagae, Michael Cargnelli, Shigeru Ishimoto, Kotaro Shirotori, Ken Suzuki, Shun Enomoto, Shinya Yamada, M. Sato, D. A. Bennett, D. Tomono, Yuto Ichinohe, R. Hayakawa, Atsushi Sakaguchi, A. D. Butt, O. Vazquez Doce, Gene C. Hilton, Carl D. Reintsema, Fredrik Gustafsson, Yutaka Mizoi, Hiroyuki Fujioka, Takaya Ohashi, Carolina Berucci, Y. Sada, Yuichiro Ezoe, Ryugo S. Hayano, H. Tatsuno, Malcolm Durkin, C. Han, Johann Zmeskal, M. Iwasaki, T. Murakami, T. Yamaga, Kiyoshi Tanida, Galen C. O'Neil, Kyo Tsukada, T. Hayashi, Y. Iizawa, Hexi Shi, Daniel Schmidt, S. Kawasaki, Fuminori Sakuma, T. Nishi, Yoshitaka Ishisaki, S. Aikawa, C. Trippl, Alessandro Scordo, T. Hashimoto, K. Piscicchia, Seonho Choi, Yasuhiro H. Matsuda, Akihiro Toyoda, Hirofumi Noda, Catalina Curceanu, D. Bosnar, Joel N. Ullom, K. Nunomura, P. Bhler, T. Suzuki, Mario Bragadireanu, Florin Sirghi, William B. Doriese, T. Akaishi, E. Widmann, S. Ajimura, Masami Iio, Yue Ma, Hiroaki Ohnishi, Haruhiko Outa, K. Inoue, Hiroyuki Noumi, G. A. Beer, S. Y. Suzuki, and Jens Uhlig

Subjects
Nuclear physics, Physics, Light nucleus, Particle properties, Deuterium, Atom, J-PARC, Charged particle
Published
2019
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26. Results of \(\bar{K}NN\) Search via the (K−, n) Reaction at J-PARC

Author

Hexi Shi, Paul Kienle, L. Busso, Florin Sirghi, Michael Cargnelli, Y. Sada, Shinji Okada, Oton Vazquez Doce, Carolina Berucci, Catalina Curceanu, Ryugo S. Hayano, C. Guaraldo, Shun Enomoto, Johann Zmeskal, Johann Marton, Takashi Ishikawa, Kotaro Shirotori, O. Morra, H. Tatsuno, T. Yamaga, S. Kawasaki, Toshimitsu Yamazaki, Paul Buehler, Kiyoshi Tanida, Ken Suzuki, Y. Ishiguro, D. Tomono, K. Kato, Yue Ma, H. Asano, Shigeru Ishimoto, Y. Kato, Atsushi Sakaguchi, Mario Bragadireanu, Toshihiko Hiraiwa, M. Iliescu, M. Sato, Yutaka Mizoi, Eberhard Widmann, Hiroyuki Fujioka, Michiko Sekimoto, Takatoshi Suzuki, Kyo Tsukada, Yasuyuki Matsuda, Kristian Piscicchia, Hyeongchan Bhang, Tomokazu Fukuda, S. Ajimura, Masahiko Iwasaki, Haruhiko Outa, Masami Iio, Y. Fujiwara, Makoto Tokuda, Hiroaki Ohnishi, Tomofumi Nagae, Hiroyuki Noumi, Seonho Choi, Qi Zhang, Akihisa Toyoda, Fuminori Sakuma, G. Beer, Alessandro Scordo, T. Hashimoto, K. Inoue, Kenta Itahashi, Diana Sirghi, Hirofumi Kou, Koki Kanno, and Shoji Suzuki

Subjects
Physics, Bar (music), Analytical chemistry, J-PARC
Published
2019
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27. Λ(1405) Spectroscopy via the In-flight d(K−, n) Reaction at the J-PARC K1.8BR

Author

Florin Sirghi, Kotaro Shirotori, T. Akaishi, Michiko Sekimoto, Tomofumi Nagae, Takatoshi Suzuki, M. Iliescu, Hiroyuki Fujioka, Eberhard Widmann, S. Ajimura, Masami Iio, Hiroaki Ohnishi, Johann Zmeskal, Paul Buehler, K. Kato, Masahiko Iwasaki, Yasuyuki Matsuda, Kyo Tsukada, Johann Marton, Kristian Piscicchia, Toshimitsu Yamazaki, Shun Enomoto, Shinji Okada, G. Beer, H. Asano, C. Guaraldo, Paul Kienle, S. Kawasaki, Shu Aikawa, Yutaka Mizoi, Tomokazu Fukuda, Makoto Tokuda, Takashi Ishikawa, Toshihiko Hiraiwa, Y. Kato, Alessandro Scordo, T. Hashimoto, Shigeru Ishimoto, O. Morra, K. Inoue, Yue Ma, Ryugo S. Hayano, Y. Fujiwara, Haruhiko Outa, Catalina Curceanu, Zhadyra Omar, M. Iwai, Fuminori Sakuma, Kenta Itahashi, Yusuke Komatsu, Akihisa Toyoda, Hiroyuki Noumi, A. O. Tokiyasu, D. Tomono, Diana Sirghi, Atsushi Sakaguchi, Hirofumi Kou, Y. Ishiguro, H. Yim, L. Busso, Y. Sada, Shoji Suzuki, Koki Kanno, M. Sato, H. Tatsuno, Michael Cargnelli, Ken Suzuki, Mario Bragadireanu, Hexi Shi, T. Yamaga, Kiyoshi Tanida, Seonho Choi, Qi Zhang, Carolina Berruci, and Oton Vazquez Doce

Subjects
Physics, Analytical chemistry, J-PARC, Spectroscopy
Published
2019
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28. Probing Strong Interaction with SIDDHARTA-2

Author

Johann Zmeskal, Alessandro Scordo, Aidin Amirkhani, Claude Amsler, Ata Baniahmad, Massimiliano Bazzi, Giovanni Bellotti, Carolina Berucci, Damir Bosnar, Mario A. Bragadireanu, Michael Cargnelli, Catalina Curceanu, Raffaele Del Grande, Laura Fabbietti, Carlo Fiorini, Francesco Ghio, Carlo Guaraldo, Mihai Iliescu, Masahiko Iwasaki, Paolo Levi Sandri, Johann Marton, Marco Miliucci, Pawel Moskal, Dorel Pietreanu, Kristian Piscicchia, Michal Silarski, Diana Sirghi, Florin Sirghi, Magdalena Skurzok, Antonio Spallone, Marlene Tüchler, Oton Vazquez Doce, and Eberhard Widmann

Subjects
Nuclear physics, Physics, Nuclear Theory, Strong interaction, Nuclear Experiment
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 involving strangeness. The unique feature of DAΦNE, namely the production of low-energy kaons, has led to a series of successfully conducted experiments with light kaonic atoms like SIDDHARTA, where the most precise value for the antikaon-proton scattering length was determined. Kaonic deuterium X-ray spectroscopy is still missing and with SIDDHARTA-2 the ground state 1s-level shift and width should be measured with a precision of 30 and 75 eV, respectively.

Published
2019
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29. The modern era of light kaonic atom experiments

Author

Masa Iwasaki, C. Guaraldo, Johann Zmeskal, Shinji Okada, Catalina Curceanu, Diana Sirghi, M. Iliescu, T. Ishiwatari, H. Tatsuno, J. Marton, Ryugo S. Hayano, and M. Cargnelli

Subjects
Physics, Quark, Strange quark, Field (physics), 010308 nuclear & particles physics, Nuclear Theory, Strong interaction, General Physics and Astronomy, Zero-point energy, Electron, 01 natural sciences, Nuclear physics, 0103 physical sciences, Atom, Nuclear Experiment, 010306 general physics, Nucleon
Abstract

This review covers the modern era of experimental kaonic atom studies, encompassing 20 years of activity, defined by breakthroughs in technological developments which allowed performing a series of long-awaited precision measurements. Kaonic atoms are atomic systems where an electron is replaced by a negatively charged kaon, containing the strange quark, which interacts in the lowest orbits with the nucleus also by the strong interaction. As a result, their study offers the unique opportunity to perform experiments equivalent to scattering at vanishing relative energy. This allows one to study the strong interaction between the antikaon and the nucleon or the nucleus “at threshold,” namely, at zero relative energy, without the need of ad hoc extrapolation to zero energy, as in scattering experiments. The fast progress achieved in performing precision light kaonic atom experiments, which also solved long-pending inconsistencies with theoretical calculations generated by old measurements, relies on the development of novel cryogenic targets, x-ray detectors, and the availability of pure and intense charged kaon beams, which propelled an unprecedented progress in the field. Future experiments, based on new undergoing technological developments, will further boost the kaonic atom studies, thus fostering a deeper understanding of the low-energy strong interaction extended to the second family of quarks.

Published
2019
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30. High Precision Test of the Pauli Exclusion Principle for Electrons

Author

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

Subjects
quantum foundation, Particle physics, 02 engineering and technology, Electron, 01 natural sciences, 010305 fluids & plasmas, Pauli exclusion principle, symbols.namesake, Radiation emission, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Limit (mathematics), Physics, Condensed Matter Physics, lcsh:QC1-999, quantum foundations, Electronic, Optical and Magnetic Materials, underground experiment, symbols, X-ray spectroscopy, 020201 artificial intelligence & image processing, Continuous current, Order of magnitude, lcsh:Physics
Abstract

The VIP-2 experiment aims to perform high precision tests of the Pauli Exclusion Principle for electrons. The method consists in circulating a continuous current in a copper strip, searching for the X radiation emission due to a prohibited transition (from the 2p level to the 1s level of copper when this is already occupied by two electrons). VIP already set the best limit on the PEP violation probability for electrons 1 2 &beta, 2 &lt, 4.7 &times, 10 &minus, 29 , the goal of the upgraded VIP-2 (VIolation of the Pauli Exclusion Principle-2) experiment is to improve this result of two orders of magnitude at least. The experimental apparatus and the results of the analysis of a first set of collected data will be presented.

Published
2019
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31. $$\hbox {K}^{-}$$ K - multi-nucleon absorption cross sections and branching ratios in $$\Lambda \hbox {p}$$ Λ p and $$\Sigma ^0\hbox {p}$$ Σ 0 p final states

Author

Paweł Moskal, Alessandro Scordo, A. Ramos, Diana Sirghi, S. Wycech, M. Martini, Johann Marton, Laura Fabbietti, V. De Leo, J. Zmeskal, N. Raha, A. Selce, P. Fermani, Giuseppe Mandaglio, O. Vazquez Doce, Catalina Curceanu, Michał Silarski, Magdalena Skurzok, Eryk Czerwiński, K. Piscicchia, Michael Cargnelli, and R. Del Grande

Subjects
Physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Sigma, Lambda, Branching (polymer chemistry), 01 natural sciences, Spectral line, Nuclear physics, 0103 physical sciences, Bound state, 010306 general physics, Nucleon, Engineering (miscellaneous)
Abstract

The determination of low-energy cross sections and branching ratios of the K$^-$ multi-nucleon absorption processes in $\Lambda$p and $\Sigma^0$p final states performed by the AMADEUS collaboration is presented. Low momentum K$^-$ ($p_\mathrm{K} \simeq$ 127 MeV/c) produced at the DA$\Phi$NE collider are impinged on a Carbon target within the KLOE detector and the two and three nucleon absorption processes are disentangled by comparing the experimental data to phenomenological calculations. The $\Lambda$p spectra are interpreted in terms of K$^-$ multi-nucleon absorption processes; the possible contribution of a K$^-$pp bound state is demonstrated to overlap with the two nucleon capture process, its absolute yield thus resulting indistinguishable.

Published
2019
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32. Silicon drift detectors system for high-precision light kaonic atoms spectroscopy

Author

Hexi Shi, Diana Sirghi, A. Spallone, Alessandro Scordo, M. Cargnelli, A. Baniahmad, Fabrizio Napolitano, K. Piscicchia, Magdalena Skurzok, L. De Paolis, C. Guaraldo, O. Vazquez Doce, Carlo Fiorini, Florin Sirghi, R. Del Grande, Marco Carminati, A. Amirkhani, J. Marton, M. Iliescu, Catalina Curceanu, Marco Miliucci, Mario Bragadireanu, D. Bosnar, P. Levi Sandri, Johann Zmeskal, M. Tüchler, M. Iwasaki, M. Bazzi, F. Sgaramella, Szymon Niedźwiecki, Paweł Moskal, Alberto Clozza, and Michał Silarski

Subjects
X-ray spectroscopy, Materials science, Silicon drift detector, Silicon, 010308 nuclear & particles physics, business.industry, Applied Mathematics, Detector, chemistry.chemical_element, x-ray spectroscopy, 01 natural sciences, chemistry, silicon drift detector, 0103 physical sciences, Optoelectronics, kaonic atoms, 010306 general physics, business, Spectroscopy, Instrumentation, Engineering (miscellaneous)
Published
2021
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33. Low-energy Kaon Nucleon/Nuclei Studies at DA\(\Phi \)NE: the SIDDHARTA-2 Experiment

Author

Hexi Shi, A. Baniahmad, Shinji Okada, C. Guaraldo, L. De Paolis, Florin Sirghi, Alberto Clozza, K. Piscicchia, Catalina Curceanu, Paweł Moskal, Diana Sirghi, Magdalena Skurzok, A. Amirkhani, Szymon Niedźwiecki, Michael Cargnelli, Johann Marton, R. Del Grande, Marco Miliucci, O. Vazquez Doce, Carlo Fiorini, D. Bosnar, Laura Fabbietti, M. Iwasaki, A. Spallone, Marco Carminati, M. Iliescu, J. Zmeskal, M. Tüchler, Mario Bragadireanu, Alessandro Scordo, M. Bazzi, P. Levi Sandri, and Michał Silarski

Subjects
Physics, Nuclear physics, Low energy, General Physics and Astronomy, Nucleon
Published
2021
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34. Λp correlated production from low energy K−12C interactions by AMADEUS

Author

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

Subjects
Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, QC1-999, 01 natural sciences, NATURAL SCIENCES. Physics, law.invention, PRIRODNE ZNANOSTI. Fizika, Nuclear physics, Low energy, law, 0103 physical sciences, 010306 general physics, Nucleon, Collider, Absorption (electromagnetic radiation)
Abstract

The main steps for the analysis of the Λp correlated production in low-energy K− captures on Carbon nuclei, performed by the AMADEUS collaboration, are presented. The goal is to perform the first comprehensive study of the K− absorption on two, three and four nucleons, exploiting the lowmomentum K−s (pK ~ 127 MeV/c) produced at the DAΦNE collider, and to measure the low-energy cross sections and branching ratios of the K− multinucleon absorption processes in both the Λp and Σ0p channels. An integrated luminosity of 1.74 fb−1 collected during the KLOE 2004/2005 data campaign is analysed by reconstructing the Λp final state.

Published
2019
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35. Revisiting the Charged Kaon Mass

Author

Alessandro Scordo, Petar Žugec, M. Tüchler, Florin Sirghi, L. De Paolis, M. Iliescu, Magdalena Skurzok, R. Del Grande, Mihael Makek, Marco Miliucci, Catalina Curceanu, D. Bosnar, C. Guaraldo, Alberto Clozza, J. Marton, M. Bazzi, K. Piscicchia, M. Cargnelli, Johann Zmeskal, and Diana Sirghi

Subjects
Physics, DAΦNE, 010308 nuclear & particles physics, Nuclear Theory, General Physics and Astronomy, charged kaon, Laboratori Nazionali di Frascati, DAΦNE, SIDDHARTA-2, 01 natural sciences, charged kaon, SIDDHARTA-2, NATURAL SCIENCES. Physics, Nuclear physics, PRIRODNE ZNANOSTI. Fizika, Pion, Laboratori Nazionali di Frascati: DAΦNE [charged kaon], 0103 physical sciences, Laboratori Nazionali di Frascati, High Energy Physics::Experiment, Hpge detector, Nuclear Experiment, Order of magnitude
Abstract

The precision of the charged kaon mass is an order of magnitude worse than the precision of the charged pion mass mainly due to two inconsistent measurements. We plan to improve this precision by determining the charged kaon mass with the requested accuracy in the measurements of X-ray transitions in kaonic atoms of selected solid targets with the HPGe detector at DAΦNE in Laboratori Nazionali di Frascati, Italy. The measurements will be performed in parallel with SIDDHARTA-2 measurements of X-ray transitions in gaseous targets. The status of the preparation of the measurements will be presented.

Published
2019

36. 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
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37. 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

38. First measurement of the K−n →Λπ− non-resonant transition amplitude below threshold

Author

J. Zmeskal, E. Perez del Rio, Paweł Moskal, Johann Marton, Catalina Curceanu, S. Wycech, R. Del Grande, Diana Sirghi, Laura Fabbietti, I. Tucakovic, O. Vazquez Doce, Michael Cargnelli, E. De Lucia, Michał Silarski, Giuseppe Mandaglio, Wojciech Krzemien, P. Branchini, M. Martini, Alessandro Scordo, V. De Leo, A. Di Cicco, Eryk Czerwiński, P. Fermani, S. Fiore, Magdalena Skurzok, A. Selce, K. Piscicchia, Piscicchia, K., Wycech, S., Fabbietti, L., Cargnelli, M., Curceanu, C., Del Grande, R., Marton, J., Moskal, P., Scordo, A., Silarski, M., Sirghi, D., Skurzok, M., Tucakovic, I., Vázquez Doce, O., Zmeskal, J., Branchini, P., Czerwinski, E., De Leo, V., De Lucia, E., Di Cicco, A., Fermani, P., Fiore, S., Krzemien, W., Mandaglio, G., Martini, M., Perez del Rio, E., and Selce, A.

Subjects
Antiparticle, Nuclear and High Energy Physics, Meson, Strong interaction, Hadron, Antikaon interactions in nuclear matter, Strangeness nuclear physics, Elementary particle, 01 natural sciences, 7. Clean energy, 12. Responsible consumption, 0103 physical sciences, Phenomenological model, 010306 general physics, Physics, Strangeness nuclear physic, 010308 nuclear & particles physics, lcsh:QC1-999, Amplitude, 13. Climate action, Antimatter, Atomic physics, lcsh:Physics
Abstract

In this study, exergetic, environmental and economic (3E) analyses have been performed in order to provide sustainability indicators from resource extraction to the final product of stationary power Molten Carbonate Fuel Cells (MCFC) systems (500 kW). Two environmental life cycle impact assessment methods have been selected: the ReCiPe 2016 hierarchical midpoint and endpoint, and the Cumulative Exergy Extraction from the Natural Environment (CEENE). The levelized cost of electricity (LCOE) under technology cost and performance parameters was calculated to analyze the system from the economic point of view. The global warming potential (GWP) is estimated to be 0.549 kg CO2-eq/kWh while acidification (5.06e−4 kg SO2-eq/kWh), eutrophication (9.81e−4 kg P-eq. freshwater/kWh), ozone layer depletion (4.11e−6 kg CFC-11-eq/kWh) and human toxicity (1.07 kg 1,4-DB-eq/kWh). Aggregated CEENE was estimated to be about 8.55 MJex/kWh. Results show that majority of impacts are dominated by fuel supply, while some others are dominated by manufacturing of system. GWP is the only impact category dominated by system operation. Due to potentially high electrical efficiency, MCFC energy systems can lead to lower CEENE and improvements of global warming, fossil fuel and resource scarcity, and photochemical oxidant formation potential with respect to other conventional energy conversion systems. Advances in longer lifetimes of the MCFC stack can help trigger innovation in manufacturing processes and will lead to less resource use of electricity, metal, and minerals, thus less resource scarcity and toxicity related burdens. The baseline LCOE is calculated 0.1265 €/kWh being comparable with the Italian grid (0.15–0.16 €/kWh). The costing results indicate that the unit decreasing the system capital cost could potentially reduce the LCOE by around 25%. Advancing the use of life-cycle thinking in MCFC industry with site-specific data raise systems credibility and enables clarifying the trade-offs between the sustainability pillars, thus designing more sustainable products. © 2018 Elsevier Ltd

Published
2018

39. Search for deeply bound kaonic nuclear states in the AMADEUS experiment

Author

Johann Marton, Catalina Curceanu, E. Widmann, Alessandro Scordo, S. Wycech, O. Vazquez Doce, Michael Cargnelli, Michał Silarski, Laura Fabbietti, Johann Zmeskal, Magdalena Skurzok, Paweł Moskal, Raffaele Del Grande, K. Piscicchia, C. Guaraldo, I. Tucakovic, and Diana Sirghi

Subjects
Nuclear physics, Physics, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, Channel (broadcasting), 010306 general physics, 01 natural sciences, Deeply bound states, kaons, hadronic strangeness physics
Abstract

We briefly report on the search for Deeply Bound Kaonic Nuclear States with AMADEUS in the Σ0p channel, and future perspectives.

Published
2018

40. 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
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41. 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

42. 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
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43. 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
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44. Study of the Σ0p Final State from K− Absorptions

Author

Michael Cargnelli, K. Piscicchia, I. Tucakovic, Johann Marton, O. Vazquez Doce, Alessandro Scordo, Diana Sirghi, Catalina Curceanu, S. Wycech, J. Zmeskal, and Laura Fabbietti

Subjects
Baryon, Physics, symbols.namesake, Pair production, Binding energy, Fermi level, Hadron, Carbon-12, Analytical chemistry, symbols, Elementary particle, Nucleon
Published
2017
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45. 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
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46. 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
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47. 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
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48. 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

49. 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

50. 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
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