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Article ; Online: Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station.

Aguilar, M / Aisa, D / Alpat, B / Alvino, A / Ambrosi, G / Andeen, K / Arruda, L / Attig, N / Azzarello, P / Bachlechner, A / Barao, F / Barrau, A / Barrin, L / Bartoloni, A / Basara, L / Battarbee, M / Battiston, R / Bazo, J / Becker, U /

Behlmann, M / Beischer, B / Berdugo, J / Bertucci, B / Bigongiari, G / Bindi, V / Bizzaglia, S / Bizzarri, M / Boella, G / de Boer, W / Bollweg, K / Bonnivard, V / Borgia, B / Borsini, S / Boschini, M J / Bourquin, M / Burger, J / Cadoux, F / Cai, X D / Capell, M / Caroff, S / Casaus, J / Cascioli, V / Castellini, G / Cernuda, I / Cerreta, D / Cervelli, F / Chae, M J / Chang, Y H / Chen, A I / Chen, H / Cheng, G M / Chen, H S / Cheng, L / Chou, H Y / Choumilov, E / Choutko, V / Chung, C H / Clark, C / Clavero, R / Coignet, G / Consolandi, C / Contin, A / Corti, C / Cortina Gil, E / Coste, B / Creus, W / Crispoltoni, M / Cui, Z / Dai, Y M / Delgado, C / Della Torre, S / Demirköz, M B / Derome, L / Di Falco, S / Di Masso, L / Dimiccoli, F / Díaz, C / von Doetinchem, P / Donnini, F / Du, W J / Duranti, M / D'Urso, D / Eline, A / Eppling, F J / Eronen, T / Fan, Y Y / Farnesini, L / Feng, J / Fiandrini, E / Fiasson, A / Finch, E / Fisher, P / Galaktionov, Y / Gallucci, G / García, B / García-López, R / Gargiulo, C / Gast, H / Gebauer, I / Gervasi, M / Ghelfi, A / Gillard, W / Giovacchini, F / Goglov, P / Gong, J / Goy, C / Grabski, V / Grandi, D / Graziani, M / Guandalini, C / Guerri, I / Guo, K H / Haas, D / Habiby, M / Haino, S / Han, K C / He, Z H / Heil, M / Hoffman, J / Hsieh, T H / Huang, Z C / Huh, C / Incagli, M / Ionica, M / Jang, W Y / Jinchi, H / Kanishev, K / Kim, G N / Kim, K S / Kirn, Th / Kossakowski, R / Kounina, O / Kounine, A / Koutsenko, V / Krafczyk, M S / La Vacca, G / Laudi, E / Laurenti, G / Lazzizzera, I / Lebedev, A / Lee, H T / Lee, S C / Leluc, C / Levi, G / Li, H L / Li, J Q / Li, Q / Li, T X / Li, W / Li, Y / Li, Z H / Li, Z Y / Lim, S / Lin, C H / Lipari, P / Lippert, T / Liu, D / Liu, H / Lolli, M / Lomtadze, T / Lu, M J / Lu, S Q / Lu, Y S / Luebelsmeyer, K / Luo, J Z / Lv, S S / Majka, R / Mañá, C / Marín, J / Martin, T / Martínez, G / Masi, N / Maurin, D / Menchaca-Rocha, A / Meng, Q / Mo, D C / Morescalchi, L / Mott, P / Müller, M / Ni, J Q / Nikonov, N / Nozzoli, F / Nunes, P / Obermeier, A / Oliva, A / Orcinha, M / Palmonari, F / Palomares, C / Paniccia, M / Papi, A / Pauluzzi, M / Pedreschi, E / Pensotti, S / Pereira, R / Picot-Clemente, N / Pilo, F / Piluso, A / Pizzolotto, C / Plyaskin, V / Pohl, M / Poireau, V / Postaci, E / Putze, A / Quadrani, L / Qi, X M / Qin, X / Qu, Z Y / Räihä, T / Rancoita, P G / Rapin, D / Ricol, J S / Rodríguez, I / Rosier-Lees, S / Rozhkov, A / Rozza, D / Sagdeev, R / Sandweiss, J / Saouter, P / Sbarra, C / Schael, S / Schmidt, S M / Schulz von Dratzig, A / Schwering, G / Scolieri, G / Seo, E S / Shan, B S / Shan, Y H / Shi, J Y / Shi, X Y / Shi, Y M / Siedenburg, T / Son, D / Spada, F / Spinella, F / Sun, W / Sun, W H / Tacconi, M / Tang, C P / Tang, X W / Tang, Z C / Tao, L / Tescaro, D / Ting, Samuel C C / Ting, S M / Tomassetti, N / Torsti, J / Türkoğlu, C / Urban, T / Vagelli, V / Valente, E / Vannini, C / Valtonen, E / Vaurynovich, S / Vecchi, M / Velasco, M / Vialle, J P / Vitale, V / Vitillo, S / Wang, L Q / Wang, N H / Wang, Q L / Wang, R S / Wang, X / Wang, Z X / Weng, Z L / Whitman, K / Wienkenhöver, J / Wu, H / Wu, X / Xia, X / Xie, M / Xie, S / Xiong, R Q / Xin, G M / Xu, N S / Xu, W / Yan, Q / Yang, J / Yang, M / Ye, Q H / Yi, H / Yu, Y J / Yu, Z Q / Zeissler, S / Zhang, J H / Zhang, M T / Zhang, X B / Zhang, Z / Zheng, Z M / Zhuang, H L / Zhukov, V / Zichichi, A / Zimmermann, N / Zuccon, P / Zurbach, C

Physical review letters

2015 Volume 114, Issue 17, Page(s) 171103

Abstract: A precise measurement of the proton flux in primary cosmic rays with rigidity (momentum/charge) from 1 GV to 1.8 TV is presented based on 300 million events. Knowledge of the rigidity dependence of the proton flux is important in understanding the origin, ...

Abstract	A precise measurement of the proton flux in primary cosmic rays with rigidity (momentum/charge) from 1 GV to 1.8 TV is presented based on 300 million events. Knowledge of the rigidity dependence of the proton flux is important in understanding the origin, acceleration, and propagation of cosmic rays. We present the detailed variation with rigidity of the flux spectral index for the first time. The spectral index progressively hardens at high rigidities.
Language	English
Publishing date	2015-05-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.114.171103
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Precision Measurement of the Helium Flux in Primary Cosmic Rays of Rigidities 1.9 GV to 3 TV with the Alpha Magnetic Spectrometer on the International Space Station.

Behlmann, M / Beischer, B / Berdugo, J / Bertucci, B / Bindi, V / Bizzaglia, S / Bizzarri, M / Boella, G / de Boer, W / Bollweg, K / Bonnivard, V / Borgia, B / Borsini, S / Boschini, M J / Bourquin, M / Burger, J / Cadoux, F / Cai, X D / Capell, M / Caroff, S / Casaus, J / Castellini, G / Cernuda, I / Cerreta, D / Cervelli, F / Chae, M J / Chang, Y H / Chen, A I / Chen, G M / Chen, H / Chen, H S / Cheng, L / Chou, H Y / Choumilov, E / Choutko, V / Chung, C H / Clark, C / Clavero, R / Coignet, G / Consolandi, C / Contin, A / Corti, C / Gil, E Cortina / Coste, B / Creus, W / Crispoltoni, M / Cui, Z / Dai, Y M / Delgado, C / Della Torre, S / Demirköz, M B / Derome, L / Di Falco, S / Di Masso, L / Dimiccoli, F / Díaz, C / von Doetinchem, P / Donnini, F / Duranti, M / D'Urso, D / Egorov, A / Eline, A / Eppling, F J / Eronen, T / Fan, Y Y / Farnesini, L / Feng, J / Fiandrini, E / Fiasson, A / Finch, E / Fisher, P / Formato, V / Galaktionov, Y / Gallucci, G / García, B / García-López, R / Gargiulo, C / Gast, H / Gebauer, I / Gervasi, M / Ghelfi, A / Giovacchini, F / Goglov, P / Gong, J / Goy, C / Grabski, V / Grandi, D / Graziani, M / Guandalini, C / Guerri, I / Guo, K H / Haas, D / Habiby, M / Haino, S / Han, K C / He, Z H / Heil, M / Hoffman, J / Hsieh, T H / Huang, Z C / Huh, C / Incagli, M / Ionica, M / Jang, W Y / Jinchi, H / Kanishev, K / Kim, G N / Kim, K S / Kirn, Th / Korkmaz, M A / Kossakowski, R / Kounina, O / Kounine, A / Koutsenko, V / Krafczyk, M S / La Vacca, G / Laudi, E / Laurenti, G / Lazzizzera, I / Lebedev, A / Lee, H T / Lee, S C / Leluc, C / Li, H L / Li, J Q / Li, Q / Li, T X / Li, W / Li, Y / Li, Z H / Li, Z Y / Lim, S / Lin, C H / Lipari, P / Lippert, T / Liu, D / Liu, H / Liu, Hu / Lolli, M / Lomtadze, T / Lu, M J / Lu, S Q / Lu, Y S / Luebelsmeyer, K / Luo, F / Luo, J Z / Lv, S S / Majka, R / Mañá, C / Marín, J / Martin, T / Martínez, G / Masi, N / Maurin, D / Menchaca-Rocha, A / Meng, Q / Mo, D C / Morescalchi, L / Mott, P / Müller, M / Nelson, T / Ni, J Q / Nikonov, N / Nozzoli, F / Nunes, P / Obermeier, A / Oliva, A / Orcinha, M / Palmonari, F / Palomares, C / Paniccia, M / Papi, A / Pauluzzi, M / Pedreschi, E / Pensotti, S / Pereira, R / Picot-Clemente, N / Pilo, F / Piluso, A / Pizzolotto, C / Plyaskin, V / Pohl, M / Poireau, V / Putze, A / Quadrani, L / Qi, X M / Qin, X / Qu, Z Y / Räihä, T / Rancoita, P G / Rapin, D / Ricol, J S / Rodríguez, I / Rosier-Lees, S / Rozhkov, A / Rozza, D / Sagdeev, R / Sandweiss, J / Saouter, P / Schael, S / Schmidt, S M / von Dratzig, A Schulz / Schwering, G / Scolieri, G / Seo, E S / Shan, B S / Shan, Y H / Shi, J Y / Shi, X Y / Shi, Y M / Siedenburg, T / Son, D / Song, J W / Spada, F / Spinella, F / Sun, W / Sun, W H / Tacconi, M / Tang, C P / Tang, X W / Tang, Z C / Tao, L / Tescaro, D / Ting, Samuel C C / Ting, S M / Tomassetti, N / Torsti, J / Türkoğlu, C / Urban, T / Vagelli, V / Valente, E / Vannini, C / Valtonen, E / Vaurynovich, S / Vecchi, M / Velasco, M / Vialle, J P / Vitale, V / Vitillo, S / Wang, L Q / Wang, N H / Wang, Q L / Wang, R S / Wang, X / Wang, Z X / Weng, Z L / Whitman, K / Wienkenhöver, J / Willenbrock, M / Wu, H / Wu, X / Xia, X / Xie, M / Xie, S / Xiong, R Q / Xu, N S / Xu, W / Yan, Q / Yang, J / Yang, M / Yang, Y / Ye, Q H / Yi, H / Yu, Y J / Yu, Z Q / Zeissler, S / Zhang, C / Zhang, J H / Zhang, M T / Zhang, S D / Zhang, S W / Zhang, X B / Zhang, Z / Zheng, Z M / Zhuang, H L / Zhukov, V / Zichichi, A / Zimmermann, N / Zuccon, P

Physical review letters

2015 Volume 115, Issue 21, Page(s) 211101

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. ...

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.
Language	English
Publishing date	2015-11-20
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.115.211101
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Precision Measurement of the (e^{+}+e^{-}) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station.

Behlmann, M / Beischer, B / Berdugo, J / Bertucci, B / Bigongiari, G / Bindi, V / Bizzaglia, S / Bizzarri, M / Boella, G / de Boer, W / Bollweg, K / Bonnivard, V / Borgia, B / Borsini, S / Boschini, M J / Bourquin, M / Burger, J / Cadoux, F / Cai, X D / Capell, M / Caroff, S / Casaus, J / Cascioli, V / Castellini, G / Cernuda, I / Cervelli, F / Chae, M J / Chang, Y H / Chen, A I / Chen, H / Cheng, G M / Chen, H S / Cheng, L / Chikanian, A / Chou, H Y / Choumilov, E / Choutko, V / Chung, C H / Clark, C / Clavero, R / Coignet, G / Consolandi, C / Contin, A / Corti, C / Coste, B / Crispoltoni, M / Cui, Z / Dai, M / Delgado, C / Della Torre, S / Demirköz, M B / Derome, L / Di Falco, S / Di Masso, L / Dimiccoli, F / Díaz, C / von Doetinchem, P / Donnini, F / Du, W J / Duranti, M / D'Urso, D / Eline, A / Eppling, F J / Eronen, T / Fan, Y Y / Farnesini, L / Feng, J / Fiandrini, E / Fiasson, A / Finch, E / Fisher, P / Galaktionov, Y / Gallucci, G / García, B / García-López, R / Gargiulo, C / Gast, H / Gebauer, I / Gervasi, M / Ghelfi, A / Gillard, W / Giovacchini, F / Goglov, P / Gong, J / Goy, C / Grabski, V / Grandi, D / Graziani, M / Guandalini, C / Guerri, I / Guo, K H / Habiby, M / Haino, S / Han, K C / He, Z H / Heil, M / Hoffman, J / Hsieh, T H / Huang, Z C / Huh, C / Incagli, M / Ionica, M / Jang, W Y / Jinchi, H / Kanishev, K / Kim, G N / Kim, K S / Kirn, Th / Kossakowski, R / Kounina, O / Kounine, A / Koutsenko, V / Krafczyk, M S / Kunz, S / La Vacca, G / Laudi, E / Laurenti, G / Lazzizzera, I / Lebedev, A / Lee, H T / Lee, S C / Leluc, C / Li, H L / Li, J Q / Li, Q / Li, T X / Li, W / Li, Y / Li, Z H / Li, Z Y / Lim, S / Lin, C H / Lipari, P / Lippert, T / Liu, D / Liu, H / Lomtadze, T / Lu, M J / Lu, Y S / Luebelsmeyer, K / Luo, F / Luo, J Z / Lv, S S / Majka, R / Malinin, A / Mañá, C / Marín, J / Martin, T / Martínez, G / Masi, N / Maurin, D / Menchaca-Rocha, A / Meng, Q / Mo, D C / Morescalchi, L / Mott, P / Müller, M / Ni, J Q / Nikonov, N / Nozzoli, F / Nunes, P / Obermeier, A / Oliva, A / Orcinha, M / Palmonari, F / Palomares, C / Paniccia, M / Papi, A / Pauluzzi, M / Pedreschi, E / Pensotti, S / Pereira, R / Pilo, F / Piluso, A / Pizzolotto, C / Plyaskin, V / Pohl, M / Poireau, V / Postaci, E / Putze, A / Quadrani, L / Qi, X M / Räihä, T / Rancoita, P G / Rapin, D / Ricol, J S / Rodríguez, I / Rosier-Lees, S / Rozhkov, A / Rozza, D / Sagdeev, R / Sandweiss, J / Saouter, P / Sbarra, C / Schael, S / Schmidt, S M / Schuckardt, D / Schulz von Dratzig, A / Schwering, G / Scolieri, G / Seo, E S / Shan, B S / Shan, Y H / Shi, J Y / Shi, X Y / Shi, Y M / Siedenburg, T / Son, D / Spada, F / Spinella, F / Sun, W / Sun, W H / Tacconi, M / Tang, C P / Tang, X W / Tang, Z C / Tao, L / Tescaro, D / Ting, Samuel C C / Ting, S M / Tomassetti, N / Torsti, J / Türkoğlu, C / Urban, T / Vagelli, V / Valente, E / Vannini, C / Valtonen, E / Vaurynovich, S / Vecchi, M / Velasco, M / Vialle, J P / Wang, L Q / Wang, Q L / Wang, R S / Wang, X / Wang, Z X / Weng, Z L / Whitman, K / Wienkenhöver, J / Wu, H / Xia, X / Xie, M / Xie, S / Xiong, R Q / Xin, G M / Xu, N S / Xu, W / Yan, Q / Yang, J / Yang, M / Ye, Q H / Yi, H / Yu, Y J / Yu, Z Q / Zeissler, S / Zhang, J H / Zhang, M T / Zhang, X B / Zhang, Z / Zheng, Z M / Zhuang, H L / Zhukov, V / Zichichi, A / Zimmermann, N / Zuccon, P / Zurbach, C

Physical review letters

2014 Volume 113, Issue 22, Page(s) 221102

Abstract: We present a measurement of the cosmic ray (e^{+}+e^{-}) flux in the range 0.5 GeV to 1 TeV based on the analysis of 10.6 million (e^{+}+e^{-}) events collected by AMS. The statistics and the resolution of AMS provide a precision measurement of the flux. ...

Abstract	We present a measurement of the cosmic ray (e^{+}+e^{-}) flux in the range 0.5 GeV to 1 TeV based on the analysis of 10.6 million (e^{+}+e^{-}) events collected by AMS. The statistics and the resolution of AMS provide a precision measurement of the flux. The flux is smooth and reveals new and distinct information. Above 30.2 GeV, the flux can be described by a single power law with a spectral index γ=-3.170±0.008(stat+syst)±0.008(energy scale).
Language	English
Publishing date	2014-11-28
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.113.221102
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: High statistics measurement of the positron fraction in primary cosmic rays of 0.5-500 GeV with the alpha magnetic spectrometer on the international space station.

Accardo, L / Aguilar, M / Aisa, D / Alpat, B / Alvino, A / Ambrosi, G / Andeen, K / Arruda, L / Attig, N / Azzarello, P / Bachlechner, A / Barao, F / Barrau, A / Barrin, L / Bartoloni, A / Basara, L / Battarbee, M / Battiston, R / Bazo, J /

Becker, U / Behlmann, M / Beischer, B / Berdugo, J / Bertucci, B / Bigongiari, G / Bindi, V / Bizzaglia, S / Bizzarri, M / Boella, G / de Boer, W / Bollweg, K / Bonnivard, V / Borgia, B / Borsini, S / Boschini, M J / Bourquin, M / Burger, J / Cadoux, F / Cai, X D / Capell, M / Caroff, S / Carosi, G / Casaus, J / Cascioli, V / Castellini, G / Cernuda, I / Cerreta, D / Cervelli, F / Chae, M J / Chang, Y H / Chen, A I / Chen, H / Cheng, G M / Chen, H S / Cheng, L / Chikanian, A / Chou, H Y / Choumilov, E / Choutko, V / Chung, C H / Cindolo, F / Clark, C / Clavero, R / Coignet, G / Consolandi, C / Contin, A / Corti, C / Coste, B / Cui, Z / Dai, M / Delgado, C / Della Torre, S / Demirköz, M B / Derome, L / Di Falco, S / Di Masso, L / Dimiccoli, F / Díaz, C / von Doetinchem, P / Du, W J / Duranti, M / D'Urso, D / Eline, A / Eppling, F J / Eronen, T / Fan, Y Y / Farnesini, L / Feng, J / Fiandrini, E / Fiasson, A / Finch, E / Fisher, P / Galaktionov, Y / Gallucci, G / García, B / García-López, R / Gast, H / Gebauer, I / Gervasi, M / Ghelfi, A / Gillard, W / Giovacchini, F / Goglov, P / Gong, J / Goy, C / Grabski, V / Grandi, D / Graziani, M / Guandalini, C / Guerri, I / Guo, K H / Haas, D / Habiby, M / Haino, S / Han, K C / He, Z H / Heil, M / Henning, R / Hoffman, J / Hsieh, T H / Huang, Z C / Huh, C / Incagli, M / Ionica, M / Jang, W Y / Jinchi, H / Kanishev, K / Kim, G N / Kim, K S / Kirn, Th / Kossakowski, R / Kounina, O / Kounine, A / Koutsenko, V / Krafczyk, M S / Kunz, S / La Vacca, G / Laudi, E / Laurenti, G / Lazzizzera, I / Lebedev, A / Lee, H T / Lee, S C / Leluc, C / Levi, G / Li, H L / Li, J Q / Li, Q / Li, T X / Li, W / Li, Y / Li, Z H / Li, Z Y / Lim, S / Lin, C H / Lipari, P / Lippert, T / Liu, D / Liu, H / Lolli, M / Lomtadze, T / Lu, M J / Lu, Y S / Luebelsmeyer, K / Luo, F / Luo, J Z / Lv, S S / Majka, R / Malinin, A / Mañá, C / Marín, J / Martin, T / Martínez, G / Masi, N / Massera, F / Maurin, D / Menchaca-Rocha, A / Meng, Q / Mo, D C / Monreal, B / Morescalchi, L / Mott, P / Müller, M / Ni, J Q / Nikonov, N / Nozzoli, F / Nunes, P / Obermeier, A / Oliva, A / Orcinha, M / Palmonari, F / Palomares, C / Paniccia, M / Papi, A / Pauluzzi, M / Pedreschi, E / Pensotti, S / Pereira, R / Pilastrini, R / Pilo, F / Piluso, A / Pizzolotto, C / Plyaskin, V / Pohl, M / Poireau, V / Postaci, E / Putze, A / Quadrani, L / Qi, X M / Rancoita, P G / Rapin, D / Ricol, J S / Rodríguez, I / Rosier-Lees, S / Rossi, L / Rozhkov, A / Rozza, D / Rybka, G / Sagdeev, R / Sandweiss, J / Saouter, P / Sbarra, C / Schael, S / Schmidt, S M / Schuckardt, D / Schulz von Dratzig, A / Schwering, G / Scolieri, G / Seo, E S / Shan, B S / Shan, Y H / Shi, J Y / Shi, X Y / Shi, Y M / Siedenburg, T / Son, D / Spada, F / Spinella, F / Sun, W / Sun, W H / Tacconi, M / Tang, C P / Tang, X W / Tang, Z C / Tao, L / Tescaro, D / Ting, Samuel C C / Ting, S M / Tomassetti, N / Torsti, J / Türkoğlu, C / Urban, T / Vagelli, V / Valente, E / Vannini, C / Valtonen, E / Vaurynovich, S / Vecchi, M / Velasco, M / Vialle, J P / Vitale, V / Volpini, G / Wang, L Q / Wang, Q L / Wang, R S / Wang, X / Wang, Z X / Weng, Z L / Whitman, K / Wienkenhöver, J / Wu, H / Wu, K Y / Xia, X / Xie, M / Xie, S / Xiong, R Q / Xin, G M / Xu, N S / Xu, W / Yan, Q / Yang, J / Yang, M / Ye, Q H / Yi, H / Yu, Y J / Yu, Z Q / Zeissler, S / Zhang, J H / Zhang, M T / Zhang, X B / Zhang, Z / Zheng, Z M / Zhou, F / Zhuang, H L / Zhukov, V / Zichichi, A / Zimmermann, N / Zuccon, P / Zurbach, C

Physical review letters

2014 Volume 113, Issue 12, Page(s) 121101

Abstract: A precision measurement by AMS of the positron fraction in primary cosmic rays in the energy range from 0.5 to 500 GeV based on 10.9 million positron and electron events is presented. This measurement extends the energy range of our previous observation ... ...

Abstract	A precision measurement by AMS of the positron fraction in primary cosmic rays in the energy range from 0.5 to 500 GeV based on 10.9 million positron and electron events is presented. This measurement extends the energy range of our previous observation and increases its precision. The new results show, for the first time, that above ∼200 GeV the positron fraction no longer exhibits an increase with energy.
Language	English
Publishing date	2014-09-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.113.121101
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Electron and positron fluxes in primary cosmic rays measured with the alpha magnetic spectrometer on the international space station.

Aguilar, M / Aisa, D / Alvino, A / Ambrosi, G / Andeen, K / Arruda, L / Attig, N / Azzarello, P / Bachlechner, A / Barao, F / Barrau, A / Barrin, L / Bartoloni, A / Basara, L / Battarbee, M / Battiston, R / Bazo, J / Becker, U / Behlmann, M /

Beischer, B / Berdugo, J / Bertucci, B / Bigongiari, G / Bindi, V / Bizzaglia, S / Bizzarri, M / Boella, G / de Boer, W / Bollweg, K / Bonnivard, V / Borgia, B / Borsini, S / Boschini, M J / Bourquin, M / Burger, J / Cadoux, F / Cai, X D / Capell, M / Caroff, S / Casaus, J / Cascioli, V / Castellini, G / Cernuda, I / Cervelli, F / Chae, M J / Chang, Y H / Chen, A I / Chen, H / Cheng, G M / Chen, H S / Cheng, L / Chikanian, A / Chou, H Y / Choumilov, E / Choutko, V / Chung, C H / Clark, C / Clavero, R / Coignet, G / Consolandi, C / Contin, A / Corti, C / Coste, B / Cui, Z / Dai, M / Delgado, C / Della Torre, S / Demirköz, M B / Derome, L / Di Falco, S / Di Masso, L / Dimiccoli, F / Díaz, C / von Doetinchem, P / Du, W J / Duranti, M / D'Urso, D / Eline, A / Eppling, F J / Eronen, T / Fan, Y Y / Farnesini, L / Feng, J / Fiandrini, E / Fiasson, A / Finch, E / Fisher, P / Galaktionov, Y / Gallucci, G / García, B / García-López, R / Gast, H / Gebauer, I / Gervasi, M / Ghelfi, A / Gillard, W / Giovacchini, F / Goglov, P / Gong, J / Goy, C / Grabski, V / Grandi, D / Graziani, M / Guandalini, C / Guerri, I / Guo, K H / Habiby, M / Haino, S / Han, K C / He, Z H / Heil, M / Hoffman, J / Hsieh, T H / Huang, Z C / Huh, C / Incagli, M / Ionica, M / Jang, W Y / Jinchi, H / Kanishev, K / Kim, G N / Kim, K S / Kirn, Th / Kossakowski, R / Kounina, O / Kounine, A / Koutsenko, V / Krafczyk, M S / Kunz, S / La Vacca, G / Laudi, E / Laurenti, G / Lazzizzera, I / Lebedev, A / Lee, H T / Lee, S C / Leluc, C / Li, H L / Li, J Q / Li, Q / Li, T X / Li, W / Li, Y / Li, Z H / Li, Z Y / Lim, S / Lin, C H / Lipari, P / Lippert, T / Liu, D / Liu, H / Lomtadze, T / Lu, M J / Lu, Y S / Luebelsmeyer, K / Luo, F / Luo, J Z / Lv, S S / Majka, R / Malinin, A / Mañá, C / Marín, J / Martin, T / Martínez, G / Masi, N / Maurin, D / Menchaca-Rocha, A / Meng, Q / Mo, D C / Morescalchi, L / Mott, P / Müller, M / Ni, J Q / Nikonov, N / Nozzoli, F / Nunes, P / Obermeier, A / Oliva, A / Orcinha, M / Palmonari, F / Palomares, C / Paniccia, M / Papi, A / Pedreschi, E / Pensotti, S / Pereira, R / Pilo, F / Piluso, A / Pizzolotto, C / Plyaskin, V / Pohl, M / Poireau, V / Postaci, E / Putze, A / Quadrani, L / Qi, X M / Rancoita, P G / Rapin, D / Ricol, J S / Rodríguez, I / Rosier-Lees, S / Rozhkov, A / Rozza, D / Sagdeev, R / Sandweiss, J / Saouter, P / Sbarra, C / Schael, S / Schmidt, S M / Schuckardt, D / Schulz von Dratzig, A / Schwering, G / Scolieri, G / Seo, E S / Shan, B S / Shan, Y H / Shi, J Y / Shi, X Y / Shi, Y M / Siedenburg, T / Son, D / Spada, F / Spinella, F / Sun, W / Sun, W H / Tacconi, M / Tang, C P / Tang, X W / Tang, Z C / Tao, L / Tescaro, D / Ting, Samuel C C / Ting, S M / Tomassetti, N / Torsti, J / Türkoğlu, C / Urban, T / Vagelli, V / Valente, E / Vannini, C / Valtonen, E / Vaurynovich, S / Vecchi, M / Velasco, M / Vialle, J P / Wang, L Q / Wang, Q L / Wang, R S / Wang, X / Wang, Z X / Weng, Z L / Whitman, K / Wienkenhöver, J / Wu, H / Xia, X / Xie, M / Xie, S / Xiong, R Q / Xin, G M / Xu, N S / Xu, W / Yan, Q / Yang, J / Yang, M / Ye, Q H / Yi, H / Yu, Y J / Yu, Z Q / Zeissler, S / Zhang, J H / Zhang, M T / Zhang, X B / Zhang, Z / Zheng, Z M / Zhuang, H L / Zhukov, V / Zichichi, A / Zimmermann, N / Zuccon, P / Zurbach, C

Physical review letters

2014 Volume 113, Issue 12, Page(s) 121102

Abstract: Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV and the positron flux in the range 0.5 to 500 GeV are presented. The electron flux and the ... ...

Abstract	Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV and the positron flux in the range 0.5 to 500 GeV are presented. The electron flux and the positron flux each require a description beyond a single power-law spectrum. Both the electron flux and the positron flux change their behavior at ∼30 GeV but the fluxes are significantly different in their magnitude and energy dependence. Between 20 and 200 GeV the positron spectral index is significantly harder than the electron spectral index. The determination of the differing behavior of the spectral indices versus energy is a new observation and provides important information on the origins of cosmic-ray electrons and positrons.
Language	English
Publishing date	2014-09-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.113.121102
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: First result from the Alpha Magnetic Spectrometer on the International Space Station: precision measurement of the positron fraction in primary cosmic rays of 0.5-350 GeV.

Aguilar, M / Alberti, G / Alpat, B / Alvino, A / Ambrosi, G / Andeen, K / Anderhub, H / Arruda, L / Azzarello, P / Bachlechner, A / Barao, F / Baret, B / Barrau, A / Barrin, L / Bartoloni, A / Basara, L / Basili, A / Batalha, L / Bates, J /

Battiston, R / Bazo, J / Becker, R / Becker, U / Behlmann, M / Beischer, B / Berdugo, J / Berges, P / Bertucci, B / Bigongiari, G / Biland, A / Bindi, V / Bizzaglia, S / Boella, G / de Boer, W / Bollweg, K / Bolmont, J / Borgia, B / Borsini, S / Boschini, M J / Boudoul, G / Bourquin, M / Brun, P / Buénerd, M / Burger, J / Burger, W / Cadoux, F / Cai, X D / Capell, M / Casadei, D / Casaus, J / Cascioli, V / Castellini, G / Cernuda, I / Cervelli, F / Chae, M J / Chang, Y H / Chen, A I / Chen, C R / Chen, H / Cheng, G M / Chen, H S / Cheng, L / Chernoplyiokov, N / Chikanian, A / Choumilov, E / Choutko, V / Chung, C H / Clark, C / Clavero, R / Coignet, G / Commichau, V / Consolandi, C / Contin, A / Corti, C / Costado Dios, M T / Coste, B / Crespo, D / Cui, Z / Dai, M / Delgado, C / Della Torre, S / Demirkoz, B / Dennett, P / Derome, L / Di Falco, S / Diao, X H / Diago, A / Djambazov, L / Díaz, C / von Doetinchem, P / Du, W J / Dubois, J M / Duperay, R / Duranti, M / D'Urso, D / Egorov, A / Eline, A / Eppling, F J / Eronen, T / van Es, J / Esser, H / Falvard, A / Fiandrini, E / Fiasson, A / Finch, E / Fisher, P / Flood, K / Foglio, R / Fohey, M / Fopp, S / Fouque, N / Galaktionov, Y / Gallilee, M / Gallin-Martel, L / Gallucci, G / García, B / García, J / García-López, R / García-Tabares, L / Gargiulo, C / Gast, H / Gebauer, I / Gentile, S / Gervasi, M / Gillard, W / Giovacchini, F / Girard, L / Goglov, P / Gong, J / Goy-Henningsen, C / Grandi, D / Graziani, M / Grechko, A / Gross, A / Guerri, I / de la Guía, C / Guo, K H / Habiby, M / Haino, S / Hauler, F / He, Z H / Heil, M / Heilig, J / Hermel, R / Hofer, H / Huang, Z C / Hungerford, W / Incagli, M / Ionica, M / Jacholkowska, A / Jang, W Y / Jinchi, H / Jongmanns, M / Journet, L / Jungermann, L / Karpinski, W / Kim, G N / Kim, K S / Kirn, Th / Kossakowski, R / Koulemzine, A / Kounina, O / Kounine, A / Koutsenko, V / Krafczyk, M S / Laudi, E / Laurenti, G / Lauritzen, C / Lebedev, A / Lee, M W / Lee, S C / Leluc, C / León Vargas, H / Lepareur, V / Li, J Q / Li, Q / Li, T X / Li, W / Li, Z H / Lipari, P / Lin, C H / Liu, D / Liu, H / Lomtadze, T / Lu, Y S / Lucidi, S / Lübelsmeyer, K / Luo, J Z / Lustermann, W / Lv, S / Madsen, J / Majka, R / Malinin, A / Mañá, C / Marín, J / Martin, T / Martínez, G / Masciocchi, F / Masi, N / Maurin, D / McInturff, A / McIntyre, P / Menchaca-Rocha, A / Meng, Q / Menichelli, M / Mereu, I / Millinger, M / Mo, D C / Molina, M / Mott, P / Mujunen, A / Natale, S / Nemeth, P / Ni, J Q / Nikonov, N / Nozzoli, F / Nunes, P / Obermeier, A / Oh, S / Oliva, A / Palmonari, F / Palomares, C / Paniccia, M / Papi, A / Park, W H / Pauluzzi, M / Pauss, F / Pauw, A / Pedreschi, E / Pensotti, S / Pereira, R / Perrin, E / Pessina, G / Pierschel, G / Pilo, F / Piluso, A / Pizzolotto, C / Plyaskin, V / Pochon, J / Pohl, M / Poireau, V / Porter, S / Pouxe, J / Putze, A / Quadrani, L / Qi, X N / Rancoita, P G / Rapin, D / Ren, Z L / Ricol, J S / Riihonen, E / Rodríguez, I / Roeser, U / Rosier-Lees, S / Rossi, L / Rozhkov, A / Rozza, D / Sabellek, A / Sagdeev, R / Sandweiss, J / Santos, B / Saouter, P / Sarchioni, M / Schael, S / Schinzel, D / Schmanau, M / Schwering, G / Schulz von Dratzig, A / Scolieri, G / Seo, E S / Shan, B S / Shi, J Y / Shi, Y M / Siedenburg, T / Siedling, R / Son, D / Spada, F / Spinella, F / Steuer, M / Stiff, K / Sun, W / Sun, W H / Sun, X H / Tacconi, M / Tang, C P / Tang, X W / Tang, Z C / Tao, L / Tassan-Viol, J / Ting, Samuel C C / Ting, S M / Titus, C / Tomassetti, N / Toral, F / Torsti, J / Tsai, J R / Tutt, J C / Ulbricht, J / Urban, T / Vagelli, V / Valente, E / Vannini, C / Valtonen, E / Vargas Trevino, M / Vaurynovich, S / Vecchi, M / Vergain, M / Verlaat, B / Vescovi, C / Vialle, J P / Viertel, G / Volpini, G / Wang, D / Wang, N H / Wang, Q L / Wang, R S / Wang, X / Wang, Z X / Wallraff, W / Weng, Z L / Willenbrock, M / Wlochal, M / Wu, H / Wu, K Y / Wu, Z S / Xiao, W J / Xie, S / Xiong, R Q / Xin, G M / Xu, N S / Xu, W / Yan, Q / Yang, J / Yang, M / Ye, Q H / Yi, H / Yu, Y J / Yu, Z Q / Zeissler, S / Zhang, J G / Zhang, Z / Zhang, M M / Zheng, Z M / Zhuang, H L / Zhukov, V / Zichichi, A / Zuccon, P / Zurbach, C

Physical review letters

2013 Volume 110, Issue 14, Page(s) 141102

Abstract: A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8 × 10(6) positron and electron events is presented. The very ...

Abstract	A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8 × 10(6) positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to ∼ 250 GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. The positron fraction spectrum shows no fine structure, and the positron to electron ratio shows no observable anisotropy. Together, these features show the existence of new physical phenomena.
Language	English
Publishing date	2013-04-05
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.110.141102
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station.

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Article ; Online: Precision Measurement of the Helium Flux in Primary Cosmic Rays of Rigidities 1.9 GV to 3 TV with the Alpha Magnetic Spectrometer on the International Space Station.

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Article ; Online: Precision Measurement of the (e^{+}+e^{-}) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station.

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Article ; Online: High statistics measurement of the positron fraction in primary cosmic rays of 0.5-500 GeV with the alpha magnetic spectrometer on the international space station.

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Article ; Online: Electron and positron fluxes in primary cosmic rays measured with the alpha magnetic spectrometer on the international space station.

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Article ; Online: First result from the Alpha Magnetic Spectrometer on the International Space Station: precision measurement of the positron fraction in primary cosmic rays of 0.5-350 GeV.

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