Properties of Cosmic Deuterons Measured by the Alpha Magnetic Spectrometer
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Published:2024-06-25
Issue:26
Volume:132
Page:
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ISSN:0031-9007
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Container-title:Physical Review Letters
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language:en
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Short-container-title:Phys. Rev. Lett.
Author:
Aguilar M.1, Alpat B.2, Ambrosi G.2, Anderson H.3, Arruda L.4, Attig N.5, Bagwell C.3, Barao F.4, Barbanera M.2, Barrin L.6, Bartoloni A.7, Battiston R.89, Bayyari A.10, Belyaev N.3, Bertucci B.211, Bindi V.10, Bollweg K.12, Bolster J.3, Borchiellini M.13, Borgia B.714, Boschini M. J.15, Bourquin M.16, Brugnoni C.211, Burger J.3, Burger W. J.8, Cai X. D.3, Capell M.3, Casaus J.1, Castellini G.17, Cervelli F.18, Chang Y. H.19, Chen G. M.2021, Chen G. R.22, Chen H.23, Chen H. S.2021, Chen Y.22, Cheng L.22, Chou H. Y.19, Chouridou S.24, Choutko V.3, Chung C. H.24, Clark C.312, Coignet G.25, Consolandi C.10, Contin A.2627, Corti C.10, Cui Z.2822, Dadzie K.3, D’Angelo F.2726, Dass A.89, Delgado C.1, Della Torre S.15, Demirköz M. B.29, Derome L.30, Di Falco S.18, Di Felice V.31, Díaz C.1, Dimiccoli F.8, von Doetinchem P.10, Dong F.32, Donnini F.2, Duranti M.2, Egorov A.3, Eline A.3, Faldi F.211, Fehr D.24, Feng J.33, Fiandrini E.211, Fisher P.3, Formato V.31, Gámez C.1, García-López R. J.3435, Gargiulo C.6, Gast H.24, Gervasi M.1536, Giovacchini F.1, Gómez-Coral D. M.37, Gong J.32, Grandi D.1536, Graziani M.211, Guracho A. N.7, Haino S.19, Han K. C.38, Hashmani R. K.29, He Z. H.33, Heber B.39, Hsieh T. H.3, Hu J. Y.2021, Huang B. W.23, Ionica M.2, Incagli M.18, Jia Yi3, Jinchi H.38, Karagöz G.29, Khan S.16, Khiali B.31, Kirn Th.24, Klipfel A. P.3, Kounina O.3, Kounine A.3, Koutsenko V.3, Krasnopevtsev D.3, Kuhlman A.10, Kulemzin A.3, La Vacca G.1536, Laudi E.6, Laurenti G.26, LaVecchia G.3, Lazzizzera I.89, Lee H. T.40, Lee S. C.19, Li H. L.22, Li J. Q.32, Li M.16, Li M.28, Li Q.32, Li Q.28, Li Q. Y.22, Li S.24, Li S. L.2021, Li J. H.28, Li Z. H.2021, Liang M. J.2021, Liao P.28, Lin C. H.19, Lippert T.5, Liu J. H.20, Liu P. C.22, Lu S. Q.19, Lu Y. S.20, Luebelsmeyer K.24, Luo J. Z.32, Luo Q.33, Luo S. D.23, Luo Xi22, Mañá C.1, Marín J.1, Marquardt J.39, Martínez G.1, Masi N.26, Maurin D.30, Medvedeva T.3, Menchaca-Rocha A.37, Meng Q.32, Mikhailov V. V.22, Molero M.3435, Mott P.312, Mussolin L.211, Jozani Y. Najafi24, Nicolaidis R.98, Nikonov N.10, Nozzoli F.8, Ocampo-Peleteiro J.1, Oliva A.26, Orcinha M.211, Palmonari F.2627, Paniccia M.16, Pashnin A.3, Pauluzzi M.211, Pensotti S.1536, Pietzcker P.39, Plyaskin V.3, Poluianov S.41, Pridöhl D.24, Qu Z. Y.22, Quadrani L.2627, Rancoita P. G.15, Rapin D.16, Conde A. Reina26, Robyn E.16, Rodríguez-García I.1, Romaneehsen L.39, Rossi F.98, Rozhkov A.3, Rozza D.15, Sagdeev R.42, Savin E.2726, Schael S.24, Schultz von Dratzig A.24, Schwering G.24, Seo E. S.42, Shan B. S.43, Shukla A.10, Siedenburg T.24, Silvestre G.2, Song J. W.28, Song X. J.22, Sonnabend R.24, Strigari L.7, Su T.22, Sun Q.28, Sun Z. T.2021, Tabarroni L.31, Tacconi M.1536, Tang Z. C.20, Tian J.31, Tian Y.23, Ting Samuel C. C.36ORCID, Ting S. M.3, Tomassetti N.211, Torsti J.44, Urban T.312, Usoskin I.41, Vagelli V.452, Vainio R.44, Valencia-Otero M.46, Valente E.714, Valtonen E.44, Vázquez Acosta M.3435, Vecchi M.13, Velasco M.1, Wang C. X.28, Wang L.20, Wang L. Q.28, Wang N. H.28, Wang Q. L.20, Wang S.10, Wang X.3, Wang Z. M.22, Wei J.1622, Weng Z. L.3, Wu H.32, Wu Y.22, Wu Z. B.28, Xiao J. N.23, Xiong R. Q.32, Xiong X. Z.23, Xu W.2822, Yan Q.3, Yang H. T.2021, Yang Y.47, Yelland A.3, Yi H.32, You Y. H.2021, Yu Y. M.3, Yu Z. Q.20, Zhang C.20, Zhang F. Z.2021, Zhang J.28, Zhang J. H.32, Zhang Z.3, Zhao P. W.33, Zheng C.22, Zheng Z. M.43, Zhuang H. L.20, Zhukov V.24, Zichichi A.2627, Zuccon P.89,
Affiliation:
1. Medioambientales y Tecnológicas (CIEMAT) 2. INFN Sezione di Perugia 3. Massachusetts Institute of Technology (MIT) 4. Laboratório de Instrumentação e Física Experimental de Partículas (LIP) 5. Jülich Supercomputing Centre and JARA-FAME 6. European Organization for Nuclear Research (CERN) 7. INFN Sezione di Roma 1 8. INFN TIFPA 9. Università di Trento 10. University of Hawaii 11. Università di Perugia 12. National Aeronautics and Space Administration Johnson Space Center (JSC) 13. University of Groningen 14. Università di Roma La Sapienza 15. INFN Sezione di Milano–Bicocca 16. Université de Genève 17. CNR–IROE 18. INFN Sezione di Pisa 19. Institute of Physics 20. Chinese Academy of Sciences 21. University of Chinese Academy of Sciences (UCAS) 22. Shandong Institute of Advanced Technology (SDIAT) 23. Zhejiang University (ZJU) 24. RWTH Aachen University 25. Université Savoie Mont Blanc 26. INFN Sezione di Bologna 27. Università di Bologna 28. Shandong University (SDU) 29. Middle East Technical University (METU) 30. Université Grenoble Alpes 31. INFN Sezione di Roma Tor Vergata 32. Southeast University (SEU) 33. Sun Yat–Sen University (SYSU) 34. Instituto de Astrofísica de Canarias (IAC) 35. Universidad de La Laguna 36. Università di Milano–Bicocca 37. Universidad Nacional Autónoma de México (UNAM) 38. National Chung-Shan Institute of Science and Technology (NCSIST) 39. Christian-Albrechts-Universität zu Kiel 40. Academia Sinica Grid Center (ASGC) 41. University of Oulu 42. University of Maryland 43. Beihang University (BUAA) 44. University of Turku 45. Agenzia Spaziale Italiana (ASI) 46. National Central University (NCU) 47. National Cheng Kung University
Abstract
Precision measurements by the Alpha Magnetic Spectrometer (AMS) on the International Space Station of the deuteron (D) flux are presented. The measurements are based on 21×106 D nuclei in the rigidity range from 1.9 to 21 GV collected from May 2011 to April 2021. We observe that over the entire rigidity range the D flux exhibits nearly identical time variations with the p, He3, and He4 fluxes. Above 4.5 GV, the D/He4 flux ratio is time independent and its rigidity dependence is well described by a single power law ∝RΔ with ΔD/He4=−0.108±0.005. This is in contrast with the He3/He4 flux ratio for which we find ΔHe3/He4=−0.289±0.003. Above ∼13 GV we find a nearly identical rigidity dependence of the D and p fluxes with a D/p flux ratio of 0.027±0.001. These unexpected observations indicate that cosmic deuterons have a sizable primarylike component. With a method independent of cosmic ray propagation, we obtain the primary component of the D flux equal to 9.4±0.5% of the He4 flux and the secondary component of the D flux equal to 58±5% of the He3 flux.
Published by the American Physical Society
2024
Funder
U.S. Department of Energy National Energy Research Scientific Computing Center CERN Massachusetts Institute of Technology Chinese Academy of Sciences Institute of High Energy Physics China Academy of Space Technology National Natural Science Foundation of China Ministry of Science and Technology of the People’s Republic of China National Key Research and Development Program of China China Scholarship Council Government of Shandong Province Government of Jiangsu Province Government of Guangdong Province Shandong University Academy of Finland Centre National de la Recherche Scientifique Institut National de Physique Nucléaire et de Physique des Particules Centre National d’Etudes Spatiales Deutsches Zentrum für Luft- und Raumfahrt RWTH Aachen University Instituto Nazionale di Fisica Nucleare Agenzia Spaziale Italiana Università degli Studi di Perugia Ministero dell’Università e della Ricerca Consejo Nacional de Ciencia y Tecnología Nederlandse Organisatie voor Wetenschappelijk Onderzoek Fundação para a Ciência e a Tecnologia Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Instituto de Astrofísica de Canarias Centro para el Desarrollo Tecnológico Industrial Ministerio de Ciencia e Innovación Agencia Estatal de Investigación European Regional Development Fund Academia Sinica National Science and Technology Council Ministry of Science and Technology, Taiwan National Cheng Kung University Türkiye Enerji, Nükleer ve Maden Ara?t?rma Kurumu National Science Foundation National Aeronautics and Space Administration Johnson Space Center Marshall Space Flight Center Universidad Nacional Autónoma de México Institute of Electrical Engineering Shandong Institute of Advanced Technology, China ANSWERS Fondation Dr. Manfred Steuer
Publisher
American Physical Society (APS)
Cited by
1 articles.
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