@article{d5f3b5198bba41288370c139553c0e37,
title = "Properties of a New Group of Cosmic Nuclei: Results from the Alpha Magnetic Spectrometer on Sodium, Aluminum, and Nitrogen",
abstract = "We report the properties of sodium (Na) and aluminum (Al) cosmic rays in the rigidity range 2.15 GV to 3.0 TV based on 0.46 million sodium and 0.51 million aluminum nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. We found that Na and Al, together with nitrogen (N), belong to a distinct cosmic ray group. In this group, we observe that, similar to the N flux, both the Na flux and Al flux are well described by the sums of a primary cosmic ray component (proportional to the silicon flux) and a secondary cosmic ray component (proportional to the fluorine flux). The fraction of the primary component increases with rigidity for the N, Na, and Al fluxes and becomes dominant at the highest rigidities. The Na/Si and Al/Si abundance ratios at the source, 0.036±0.003 for Na/Si and 0.103±0.004 for Al/Si, are determined independent of cosmic ray propagation.",
author = "{(AMS Collaboration)} and M. Aguilar and Cavasonza, {L. Ali} and B. Alpat and G. Ambrosi and L. Arruda and N. Attig and F. Barao and L. Barrin and A. Bartoloni and {Ba{\c s}eǧmez-Du Pree}, S. and R. Battiston and M. Behlmann and B. Beranek and J. Berdugo and B. Bertucci and V. Bindi and K. Bollweg and B. Borgia and Boschini, {M. J.} and M. Bourquin and Bueno, {E. F.} and Burger, {W. J.} and Burger, {W. J.} and S. Burmeister and Cai, {X. D.} and M. Capell and J. Casaus and G. Castellini and F. Cervelli and Chang, {Y. H.} and Chen, {G. M.} and Chen, {G. R.} and Chen, {H. S.} and Y. Chen and L. Cheng and Chou, {H. Y.} and S. Chouridou and V. Choutko and Chung, {C. H.} and C. Clark and G. Coignet and C. Consolandi and A. Contin and C. Corti and Z. Cui and K. Dadzie and C. Delgado and {Della Torre}, S. and Demirk{\"o}z, {M. B.} and L. Derome and Liqiu Wang",
note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society.",
year = "2021",
month = jul,
day = "9",
doi = "10.1103/PhysRevLett.127.021101",
language = "English",
volume = "127",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "2",
}