% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Aguilar:276307, author = {Aguilar, M. and Aisa, D. and Alpat, B. and Alvino, A. and Ambrosi, G. and Andeen, K. and Arruda, L. and Attig, N. and Azzarello, P. and Bachlechner, A. and Barao, F. and Barrau, A. and Barrin, L. and Bartoloni, A. and Basara, L. and Battarbee, M. and Battiston, R. and Bazo, J. and Becker, U. and Behlmann, M. and Beischer, B. and Berdugo, J. and Bertucci, B. and Bindi, V. and Bizzaglia, S. and Bizzarri, M. and Boella, G. and de Boer, W. and Bollweg, K. and Bonnivard, V. and Borgia, B. and Borsini, S. and Boschini, M. J. and Bourquin, M. and Burger, J. and Cadoux, F. and Cai, X. D. and Capell, M. and Caroff, S. and Casaus, J. and Castellini, G. and Cernuda, I. and Cerreta, D. and Cervelli, F. and Chae, M. J. and Chang, Y. H. and Chen, A. I. and Chen, G. M. and Chen, H. and Chen, H. S. and Cheng, L. and Chou, H. Y. and Choumilov, E. and Choutko, V. and Chung, C. H. and Clark, C. and Clavero, R. and Coignet, G. and Consolandi, C. and Contin, A. and Corti, C. and Gil, E. Cortina and Coste, B. and Creus, W. and Crispoltoni, M. and Cui, Z. and Dai, Y. M. and Delgado, C. and Della Torre, S. and Demirköz, M. B. and Derome, L. and Di Falco, S. and Di Masso, L. and Dimiccoli, F. and Díaz, C. and von Doetinchem, P. and Donnini, F. and Duranti, M. and D’Urso, D. and Egorov, A. and Eline, A. and Eppling, F. J. and Eronen, T. and Fan, Y. Y. and Farnesini, L. and Feng, J. and Fiandrini, E. and Fiasson, A. and Finch, E. and Fisher, P. and Formato, V. and Galaktionov, Y. and Gallucci, G. and García, B. and García-López, R. and Gargiulo, C. and Gast, H. and Gebauer, I. and Gervasi, M. and Ghelfi, A. and Giovacchini, F. and Goglov, P. and Gong, J. and Goy, C. and Grabski, V. and Grandi, D. and Graziani, M. and Guandalini, C. and Guerri, I. and Guo, K. H. and Haas, D. and Habiby, M. and Haino, S. and Han, K. C. and He, Z. H. and Heil, M. and Hoffman, J. and Hsieh, T. H. and Huang, Z. C. and Huh, C. and Incagli, M. and Ionica, M. and Jang, W. Y. and Jinchi, H. and Kanishev, K. and Kim, G. N. and Kim, K. S. and Kirn, Th. and Korkmaz, M. A. and Kossakowski, R. and Kounina, O. and Kounine, A. and Koutsenko, V. and Krafczyk, M. S. and La Vacca, G. and Laudi, E. and Laurenti, G. and Lazzizzera, I. and Lebedev, A. and Lee, H. T. and Lee, S. C. and Leluc, C. and Li, H. L. and Li, J. Q. and Li, J. Q. and Li, Q. and Li, Q. and Li, T. X. and Li, W. and Li, Y. and Li, Z. H. and Li, Z. Y. and Lim, S. and Lin, C. H. and Lipari, P. and Lippert, T. and Liu, D. and Liu, H. and Liu, Hu and Lolli, M. and Lomtadze, T. and Lu, M. J. and Lu, S. Q. and Lu, Y. S. and Luebelsmeyer, K. and Luo, F. and Luo, J. Z. and Lv, S. S. and Majka, R. and Mañá, C. and Marín, J. and Martin, T. and Martínez, G. and Masi, N. and Maurin, D. and Menchaca-Rocha, A. and Meng, Q. and Mo, D. C. and Morescalchi, L. and Mott, P. and Müller, M. and Nelson, T. and Ni, J. Q. and Nikonov, N. and Nozzoli, F. and Nunes, P. and Obermeier, A. and Oliva, A. and Orcinha, M. and Palmonari, F. and Palomares, C. and Paniccia, M. and Papi, A. and Pauluzzi, M. and Pedreschi, E. and Pensotti, S. and Pereira, R. and Picot-Clemente, N. and Pilo, F. and Piluso, A. and Pizzolotto, C. and Plyaskin, V. and Pohl, M. and Poireau, V. and Putze, A. and Quadrani, L. and Qi, X. M. and Qin, X. and Qu, Z. Y. and Räihä, T. and Rancoita, P. G. and Rapin, D. and Ricol, J. S. and Rodríguez, I. and Rosier-Lees, S. and Rozhkov, A. and Rozza, D. and Sagdeev, R. and Sandweiss, J. and Saouter, P. and Schael, S. and Schmidt, Sebastian M. and von Dratzig, A. Schulz and Schwering, G. and Scolieri, G. and Seo, E. S. and Shan, B. S. and Shan, Y. H. and Shi, J. Y. and Shi, X. Y. and Shi, Y. M. and Siedenburg, T. and Son, D. and Song, J. W. and Spada, F. and Spinella, F. and Sun, W. and Sun, W. H. and Tacconi, M. and Tang, C. P. and Tang, X. W. and Tang, Z. C. and Tao, L. and Tescaro, D. and Ting, Samuel C. C. and Ting, S. M. and Tomassetti, N. and Torsti, J. and Türkoğlu, C. and Urban, T. and Vagelli, V. and Valente, E. and Vannini, C. and Valtonen, E. and Vaurynovich, S. and Vecchi, M. and Velasco, M. and Vialle, J. P. and Vitale, V. and Vitillo, S. and Wang, L. Q. and Wang, N. H. and Wang, Q. L. and Wang, R. S. and Wang, X. and Wang, Z. X. and Weng, Z. L. and Whitman, K. and Wienkenhöver, J. and Willenbrock, M. and Wu, H. and Wu, X. and Xia, X. and Xie, M. and Xie, S. and Xiong, R. Q. and Xu, N. S. and Xu, W. and Yan, Q. and Yang, J. and Yang, M. and Yang, Y. and Ye, Q. H. and Yi, H. and Yu, Y. J. and Yu, Z. Q. and Zeissler, S. and Zhang, C. and Zhang, J. H. and Zhang, M. T. and Zhang, S. D. and Zhang, S. W. and Zhang, X. B. and Zhang, Z. and Zheng, Z. M. and Zhuang, H. L. and Zhukov, V. and Zichichi, A. and Zimmermann, N. and Zuccon, P.}, title = {{P}recision {M}easurement of the {H}elium {F}lux in {P}rimary {C}osmic {R}ays of {R}igidities 1.9 {GV} to 3 {TV} with the {A}lpha {M}agnetic {S}pectrometer on the {I}nternational {S}pace {S}tation}, journal = {Physical review letters}, volume = {115}, number = {21}, issn = {1079-7114}, address = {College Park, Md.}, publisher = {APS}, reportid = {FZJ-2015-06768}, pages = {211101}, year = {2015}, abstract = {Knowledge of the precise rigidity dependence of the helium flux is important in understanding the origin, acceleration, and propagation of cosmic rays. A precise measurement of the helium flux in primary cosmic rays with rigidity (momentum/charge) from 1.9 GV to 3 TV based on 50 million events is presented and compared to the proton flux. The detailed variation with rigidity of the helium flux spectral index is presented for the first time. The spectral index progressively hardens at rigidities larger than 100 GV. The rigidity dependence of the helium flux spectral index is similar to that of the proton spectral index though the magnitudes are different. Remarkably, the spectral index of the proton to helium flux ratio increases with rigidity up to 45 GV and then becomes constant; the flux ratio above 45 GV is well described by a single power law.}, cin = {JSC / VS-I / JARA-FAME}, ddc = {550}, cid = {I:(DE-Juel1)JSC-20090406 / I:(DE-Juel1)VS-I-20090406 / $I:(DE-82)080023_20140620$}, pnm = {513 - Supercomputer Facility (POF3-513)}, pid = {G:(DE-HGF)POF3-513}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000364910500002}, pubmed = {pmid:26636836}, doi = {10.1103/PhysRevLett.115.211101}, url = {https://juser.fz-juelich.de/record/276307}, }