Precision Measurement of the Boron to Carbon Flux Ratio in Cosmic Rays from 1.9 GV to 2.6 TV with the Alpha Magnetic Spectrometer on the International Space Station

AGUILAR, M.; CAVASONZA, L.; AMBROSI, G.; ARRUDA, L.; ATTIG, N.; AUPETIT, S.; AZZARELLO, P.; BACHLECHNER, A.; BARAO, F.; BARRAU, A.; BARRIN, L.; BARTOLONI, A.; BASARA, L.; PREE, S.; Battarbee, M.; BATTISTON, R.; BECKER, U.; BEHLMANN, M.; BEISCHER, B.; BERDUGO, J.; BERTUCCI, B.; BINDEL, K.; BINDI, V.; BOELLA, G.; DE BOER, W.; BOLLWEG, K.; BONNIVARD, V.; BORGIA, B.; BOSCHINI, M.; BOURQUIN, M.; Bueno, E.; BURGER, J.; CADOUX, F.; CAI, X.; CAPELL, M.; CAROFF, S.; CASAUS, J.; CASTELLINI, G.; CERVELLI, F.; CHAE, M.; CHANG, Y.; CHEN, A.; CHEN, G.; CHEN, H.; CHENG, L.; CHOU, H.; CHOUMILOV, E.; CHOUTKO, V.; CHUNG, C.; CLARK, C.; CLAVERO, R.; COIGNET, G.; CONSOLANDI, C.; CONTIN, A.; CORTI, C.; CREUS, W.; CRISPOLTONI, M.; CUI, Z.; DAI, Y.; DELGADO, C.; DELLA TORRE, S.; DEMAKOV, O.; DEMİRKÖZ, MELAHAT; DEROME, L.; DI FALCO, S.; DIMICCOLI, F.; DIAZ, C.; VON DOETINCHEM, P.; DONG, F.; DONNINI, F.; DURANTI, M.; D'URSO, D.; EGOROV, A.; ELINE, A.; Eronen, T.; FENG, J.; FIANDRINI, E.; FINCH, E.; FISHER, P.; FORMATO, V.; GALAKTIONOV, Y.; GALLUCCI, G.; GARCIA, B.; GARCIA-LOPEZ, R.; GARGIULO, C.; GAST, H.; GEBAUER, I.; GERVASI, M.; GHELFI, A.; GIOVACCHINI, F.; GOGLOV, P.; GOMEZ-CORAL, D.; GONG, J.; GOY, C.; GRABSKI, V.; GRANDI, D.; GRAZIANI, M.; GUO, K.; HAINO, S.; Han, K.; He, Z.; Heil, M.; Hoffman, J.; Hsieh, T.; Huang, H.; Huang, Z.; Huh, C.; Incagli, M.; Ionica, M.; Jang, W.; Jinchi, H.; Kang, S.; Kanishev, K.; Kim, G.; Kim, K.; Kirn, Th.; Konak, C.; Kounina, O.; Kounine, A.; Koutsenko, V.; Krafczyk, M.; La Vacca, G.; Laudi, E.; Laurenti, G.; Lazzizzera, I.; Lebedev, A.; Lee, H.; Lee, S.; Leluc, C.; Li, H.; Li, J.; Li, J.; Li, Q.; Li, T.; Li, W.; Li, Y.; Li, Z.; Li, Z.; Lim, S.; Lin, C.; Lipari, P.; Lippert, T.; Liu, D.; Liu, Hu; Lordello, V.; Lu, S.; Lu, Y.; Luebelsmeyer, K.; Luo, F.; Luo, J.; Lv, S.; Machate, F.; Majka, R.; Mana, C.; Marin, J.; Martin, T.; Martinez, G.; Masi, N.; Maurin, D.; Menchaca-Rocha, A.; Meng, Q.; Mikuni, V.; Mo, D.; Morescalchi, L.; Mott, P.; Nelson, T.; Ni, J.; Nikonov, N.; Nozzoli, F.; Oliva, A.; Orcinha, M.; Palmonari, F.; Palomares, C.; Paniccia, M.; Pauluzzi, M.; Pensotti, S.; Pereira, R.; Picot-Clemente, N.; Pilo, F.; Pizzolotto, C.; Plyaskin, V.; Pohl, M.; Poireau, V.; Putze, A.; Quadrani, L.; Qi, X.; Qin, X.; Qu, Z.; Raeihae, T.; Rancoita, P.; Rapin, D.; Ricol, J.; Rosier-Lees, S.; Rozhkov, A.; Rozza, D.; Sagdeev, R.; Sandweiss, J.; Saouter, P.; Schael, S.; Schmidt, S.; von Dratzig, A.; Schwering, G.; Seo, E.; Shan, B.; Shi, J.; Siedenburg, T.; Son, D.; Song, J.; Sun, W.; Tacconi, M.; Tang, X.; Tang, Z.; Tao, L.; Tescaro, D.; Ting, Samuel; Ting, S.; Tomassetti, N.; Torsti, J.; Turkoglu, C.; Urban, T.; Vagelli, V.; Valente, E.; Vannini, C.; Valtonen, E.; Acosta, M.; Vecchi, M.; Velasco, M.; Vialle, J.; Vitale, V.; Vitillo, S.; Wang, L.; Wang, N.; Wang, Q.; Wang, X.; Wang, X.; Wang, Z.; Wei, C.; Weng, Z.; Whitman, K.; Wienkenhoever, J.; Wu, H.; Wu, X.; Xia, X.; Xiong, R.; Xu, W.; Yan, Q.; Yang, J.; Yang, M.; Yang, Y.; Yi, H.; Yu, Y.; Yu, Z.; Zeissler, S.; Zhang, C.; Zhang, J.; Zhang, J.; Zhang, S.; Zhang, S.; Zhang, Z.; Zheng, Z.; Zhu, Z.; Zhuang, H.; Zhukov, V.; Zichichi, A.; Zimmermann, N.; Zuccon, P.

doi:10.1103/physrevlett.117.231102

Precision Measurement of the Boron to Carbon Flux Ratio in Cosmic Rays from 1.9 GV to 2.6 TV with the Alpha Magnetic Spectrometer on the International Space Station

Atıf İçin Kopyala

AGUILAR M., CAVASONZA L. A., AMBROSI G., ARRUDA L., ATTIG N., AUPETIT S., ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.117, sa.23, 2016 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 117 Sayı: 23
Basım Tarihi: 2016
Doi Numarası: 10.1103/physrevlett.117.231102
Dergi Adı: PHYSICAL REVIEW LETTERS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Knowledge of the rigidity dependence of the boron to carbon flux ratio (B/C) is important in understanding the propagation of cosmic rays. The precise measurement of the B/C ratio from 1.9 GV to 2.6 TV, based on 2.3 million boron and 8.3 million carbon nuclei collected by AMS during the first 5 years of operation, is presented. The detailed variation with rigidity of the B/C spectral index is reported for the first time. The B/C ratio does not show any significant structures in contrast to many cosmic ray models that require such structures at high rigidities. Remarkably, above 65 GV, the B/C ratio is well described by a single power law R. with index. Delta = -0.333 +/- 0.014(fit) +/- 0.005(syst), in good agreement with the Kolmogorov theory of turbulence which predicts. Delta = -1/3 asymptotically.