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Physical review letters · 2025

Properties of Cosmic Lithium Isotopes Measured by the Alpha Magnetic Spectrometer.

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Aguilar M, Ambrosi G, Anderson H, Arruda L, Attig N, Bagwell C, Barao F, Barbanera M, Barrin L, Bartoloni A, Battiston R, Bayyari A, Belyaev N, Bertucci B, Bindi V, Bollweg K, Bolster J, Borchiellini M, Borgia B, Boschini M J, Bourquin M, Brugnoni C, Burger J, Burger W J, Burzillà N, Cai X D, Capell M, Casaus J, Castellini G, Cervelli F, Chang Y H, Chen G M, Chen G R, Chen H, Chen H S, Chen Y, Cheng L, Chou H Y, Chouridou S, Choutko V, Chung C H, Clark C, Coignet G, Consolandi C, Contin A, Corti C, Cui Z, Dadzie K, D'Angelo F, Dass A, Delgado C, Della Torre S, Demirköz M B, Derome L, Di Falco S, Di Felice V, Díaz C, Dimiccoli F, von Doetinchem P, Dong F, Duranti M, Egorov A, Eline A, Faldi F, Fehr D, Feng J, Fiandrini E, Fisher P, Formato V, García-López R J, Gargiulo C, Gast H, Gervasi M, Giovacchini F, Gómez-Coral D M, Gong J, Grandi D, Graziani M, Haino S, Han K C, He Z H, Heber B, Hernández-Nicolás F, Hsieh T H, Hu J Y, Huang B W, Ionica M, Incagli M, Jia Yi, Jinchi H, Karagöz G, Kirn Th, Klipfel A P, Kounina O, Kounine A, Koutsenko V, Krasnopevtsev D, Kuhlman A, Kulemzin A, La Vacca G, Laudi E, Laurenti G, LaVecchia G, Lazzizzera I, Lee H T, Lee S C, Li H L, Li J H, Li J Q, Li M, Li M, Li Q, Li Q, Li Q Y, Li S L, Li Z H, Liang M J, Liao P, Lin C H, Lippert T, Liu J H, Liu P C, Liu Z, Lu S Q, Luo J Z, Luo Q, Luo S D, Luo Xi, Mañá C, Marín J, Marquardt J, Martínez G, Masi N, Maurin D, Medvedeva T, Menchaca-Rocha A, Meng Q, Mikhailov V V, Molero M, Mott P, Mussolin L, Jozani Y Najafi, Nicolaidis R, Nikonov N, Nozzoli F, Ocampo-Peleteiro J, Oliva A, Orcinha M, Palmonari F, Paniccia M, Pashnin A, Pauluzzi M, Pelosi D, Pensotti S, Pietzcker P, Plyaskin V, Poluianov S, Pridöhl D, Qu Z Y, Quadrani L, Rancoita P G, Rapin D, Conde A Reina, Robyn E, Rodríguez-García I, Romaneehsen L, Rossi F, Rozhkov A, Rozza D, Sagdeev R, Schael S, von Dratzig A Schultz, Schwering G, Seo E S, Shan B S, Shukla A, Siedenburg T, Siemko A, Silvestre G, Song J W, Song X J, Sonnabend R, Strigari L, Su T, Sun Q, Sun Z T, Tabarroni L, Tacconi M, Tang Z C, Tian J, Tian Y, Ting Samuel C C, Ting S M, Tomassetti N, Torsti J, Türk B, Ubaldi A, Urban T, Usoskin I, Vagelli V, Vainio R, Väisänen P, Valencia-Otero M, Valente E, Valtonen E, Vázquez Acosta M, Vecchi M, Velasco M, Wang C X, Wang J C, Wang L, Wang L Q, Wang N H, Wang Q L, Wang S, Wang X, Wang Z M, Wei J, Weng Z L, Wu H, Wu Y, Wu Z B, Xiao J N, Xiong R Q, Xiong X Z, Xu W, Yan Q, Yang H T, Yang Y, Yi H, You Y H, Yu Y M, Yu Z Q, Zhang C, Zhang F Z, Zhang J, Zhang J H, Zhang Z, Zhao P W, Zheng C, Zheng Z M, Zhuang H L, Zhukov V, Zichichi A, Zuberi M, Zuccon P, AMS Collaboration

Аннотация

We present the first measurement of cosmic-ray fluxes of ^{6} Li and ^{7} Li isotopes in the rigidity range from 1.9 to 25 GV. The measurements are based on 9.7×10^{5} ^{6} Li and 1.04×10^{6} ^{7} Li nuclei collected by the Alpha Magnetic Spectrometer on the International Space Station from May 2011 to October 2023. We observe that over the entire rigidity range the ^{6} Li and ^{7} Li fluxes exhibit nearly identical time variations and, above ∼4  GV, the time variations of ^{6} Li, ^{7} Li, He, Be, B, C, N, and O fluxes are identical. Above ∼7  GV, we find an identical rigidity dependence of the ^{6} Li and ^{7} Li fluxes. This shows that they are both produced by collisions of heavier cosmic-ray nuclei with the interstellar medium and, in particular, excludes the existence of a sizable primary component in the ^{7} Li flux.

ИП Урсолов Владлен Сергеевич

ИНН 500118482352 · ОГРНИП 314500117700049

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