Properties of Cosmic Lithium Isotopes Measured by the Alpha Magnetic Spectrometer

作者：M. Aguilar, G. Ambrosi, H. R. Anderson, L. Arruda, N. Attig, Christopher E. Bagwell, F. Barão, M. Barbanera, L. Barrin, A. Bartoloni, R. Battiston, Ammar Bayyari, N. L. Belyaev, B. Bertucci, V. Bindi, K. Bollweg, J. Bolster, M. Borchiellini, B. Borgia, M. J. Boschini, M. Bourquin, C. Brugnoni, J. Bürger, W.J. Burger, N. Burzillà, Xudong Cai, M. Capell, J. Casaus, G. Castellini, F. Cervelli, Y. H. Chang, G. M. Chen, G. R. Chen, H. Chen, H. S. Chen, Y. Chen, Lin Cheng, H. Y. Chou, S. Chouridou, V. Choutko, C. H. Chung, C. Clark, G. Coignet, C. Consolandi, A. Contin, C. Corti, Z. Cui, S. Kokou Dadzie, Fulvio D’Angelo, Amala Dass, C. Delgado, S. Della Torre, B. Demirköz, L. Derome, S. Di Falco, V. Di Felice, C. Díaz, F. Dimiccoli, P. von Doetinchem, Fei Dong, M. Duranti, A. I. Egorov, A. Eline, F. Faldi, D. Fehr, J. H. Feng, E. Fiandrini, P.H. Fisher, V. Formato, R. J. Garcı́a López, C. Gargiulo, H. Gast, M. Gervasi, F. Giovacchini, D. M. Gómez-Coral, J. Gong, D. Grandi, M. Graziani, S. Haino, Kyong Chol Han, Z. H. He, B. Heber, F. Hernández-Nicolás, Timothy H. Hsieh, Jiangyong Hu, B. W. Huang, M. Ionica, M. Incagli, Yi Jia, H. Jinchi, G. Karagöz, Th. Kirn, A. P. Klipfel, O. Kounina, A. Kounine, V. Koutsenko, D. Krasnopevtsev, A. Kuhlman, A. Kulemzin, G. La Vacca, E. Laudi, G. Laurenti, G. LaVecchia, I. Lazzizzera, H. T. Lee, S. C. Lee, H. L. Li, J. H. Li, J. Q. Li, M. Li, M. Li, Q. Li, Q. Li, Q. Y. Li, Shiliang Li, Zhen-Zhu Li, M. J. Liang, Pu Liao, Chao‐Hung Lin, T. Lippert, Haibo Liu, P. C. Liu, Zhen Liu, S. Q. Lu, J. Luo, Q. Luo, Shan Luo, Xi Luo, C. Mañá, J. Marín, J. Marquardt, G. Martı́nez, N. Masi, D. Maurin, T. Medvedeva, A. Menchaca-Rocha, Q. Meng, V. V. Mikhailov, M. Molero, P. Mott, L. Mussolin, Y. Najafi Jozani, Riccardo Nicolaidis, N. Nikonov, F. Nozzoli, J. Ocampo-Peleteiro, A. Oliva, M. Orcinha, F. Palmonari, M. Paniccia, A. Pashnin, M. Pauluzzi, Dario Pelosi, S. Pensotti, P. Pietzcker, V. Plyaskin, Stepan Poluianov, D. Pridöhl, Z. H. Qu, L. Quadrani, P. G. Rancoita, D. Rapin, A. Reina Conde, E. Robyn, I. Rodríguez-García, Lisa Romaneehsen, F. Rossi, A. Rozhkov, D. Rozza, R. Z. Sagdeev, S. Schael, A. Schultz von Dratzig, Georg Schwering, E. S. Seo, B. S. Shan, A. Shukla, T. Siedenburg, A. Siemko, G. Silvestre, Jiwei Song, Xiaojian Song, R. Sonnabend, Louis E. Strigari, T. Su, Qie Sun, Z. T. Sun, L. Tabarroni, M. Tacconi, Zhi-Cheng Tang, Jie Tian, Y. Tian, Samuel C.C. Ting, S.M. Ting, Nicola Tomassetti, J. Torsti, Boris Turk, Alessio Ubaldi, T. Urban, Ilya Usoskin, V. Vagelli, Rami Vainio, P. Väisänen, M. Valencia-Otero, E. Valente, E. Valtonen, M. Vázquez Acosta, M. Vecchi, M. Velasco, C. X. Wang, Jincheng Wang, Le Wang, L. Q. Wang, N. H. Wang, Q. L. Wang, S. Wang, X. Wang, Z. M. Wang, Chuncheng Wei, Z. Weng, H. Wu, Y. Wu, Zhibin Wu, J. N. Xiao, R. Q. Xiong, Xianze Xiong, W. Xu, Qi Yan, Haotian Yang, Yi Yang, Han Yi, Y. H. You, Yangyi Yu, Z. Q. Yu, C. Zhang, F. Z. Zhang, J. Zhang, Jiachi Zhang, Z. Zhang, Pei Zhao, C. Zheng, Z. M. Zheng, H.L. Zhuang, V. Zhukov, A. Zichichi, M. Zuberi, P. Zuccon · 发表于：Physical Review Letters · 年份：2025 · DOI：10.1103/physrevlett.134.201001 · 被引用次数：6 · 研究领域：Dark Matter and Cosmic Phenomena、Neutrino Physics Research、Atomic and Subatomic Physics Research

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.