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1.
Observation of Fine Time Structures in the Cosmic Proton and Helium Fluxes with the Alpha Magnetic Spectrometer on the International Space Station / Aguilar, M (Madrid, CIEMAT) ; Ali Cavasonza, L (IAS, Julich ; JCHP, Julich) ; Alpat, B (INFN, Perugia) ; Ambrosi, G (INFN, Perugia) ; Arruda, L (LIP, Lisbon) ; Attig, N (IAS, Julich ; JCHP, Julich) ; Aupetit, S (LPSC, Grenoble) ; Azzarello, P (Geneva U.) ; Bachlechner, A (IAS, Julich ; JCHP, Julich) ; Barao, F (LIP, Lisbon) et al. /AMS
We present the precision measurement from May 2011 to May 2017 (79 Bartels rotations) of the proton fluxes at rigidities from 1 to 60 GV and the helium fluxes from 1.9 to 60 GV based on a total of $1 \times 10^9$ events collected with the Alpha Magnetic Spectrometer aboard the International Space Station. This measurement is in solar cycle 24, which has the solar maximum in April 2014. [...]
2018 - 7 p. - Published in : Phys. Rev. Lett. 121 (2018) 051101 Fulltext: PDF;
2.
Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station / Aguilar, M (Madrid, CIEMAT) ; Cavasonza, L Ali (IAS, Julich ; JCHP, Julich) ; Ambrosi, G (INFN, Perugia ; Perugia U.) ; Arruda, L (LIP, Lisbon) ; Attig, N (IAS, Julich ; JCHP, Julich) ; Aupetit, S (LPSC, Grenoble) ; Azzarello, P (Geneva U.) ; Bachlechner, A (IAS, Julich ; JCHP, Julich) ; Barao, F (LIP, Lisbon) ; Barrau, A (LPSC, Grenoble) et al. /AMS
We present high-statistics, precision measurements of the detailed time and energy dependence of the primary cosmic-ray electron flux and positron flux over 79 Bartels rotations from May 2011 to May 2017 in the energy range from 1 to 50 GeV. For the first time, the charge-sign dependent modulation during solar maximum has been investigated in detail by leptons alone. [...]
2018 - 8 p. - Published in : Phys. Rev. Lett. 121 (2018) 051102 Fulltext: PDF;
3.
Precision Measurement of Cosmic-Ray Nitrogen and its Primary and Secondary Components with the Alpha Magnetic Spectrometer on the International Space Station / Aguilar, M (Madrid, CIEMAT) ; Ali Cavasonza, L (IAS, Julich ; JCHP, Julich) ; Alpat, B (INFN, Perugia ; Perugia U.) ; Ambrosi, G (INFN, Perugia ; Perugia U.) ; Arruda, L (LIP, Lisbon) ; Attig, N (IAS, Julich ; JCHP, Julich) ; Aupetit, S (LPSC, Grenoble) ; Azzarello, P (Geneva U.) ; Bachlechner, A (IAS, Julich ; JCHP, Julich) ; Barao, F (LIP, Lisbon) et al. /AMS
A precision measurement of the nitrogen flux with rigidity (momentum per unit charge) from 2.2 GV to 3.3 TV based on $2.2 \times 10^6$ events is presented. The detailed rigidity dependence of the nitrogen flux spectral index is presented for the first time. [...]
2018 - 8 p. - Published in : Phys. Rev. Lett. 121 (2018) 051103 Fulltext: PDF;
4.
Observation of New Properties of Secondary Cosmic Rays Lithium, Beryllium, and Boron by the Alpha Magnetic Spectrometer on the International Space Station / Aguilar, M (Madrid, CIEMAT) ; Ali Cavasonza, L (IAS, Julich ; JCHP, Julich) ; Ambrosi, G (INFN, Perugia) ; Arruda, L (LIP, Lisbon) ; Attig, N (IAS, Julich ; JCHP, Julich) ; Aupetit, S (LPSC, Grenoble) ; Azzarello, P (Geneva U.) ; Bachlechner, A (IAS, Julich ; JCHP, Julich) ; Barao, F (LIP, Lisbon) ; Barrau, A (LPSC, Grenoble) et al. /AMS
We report on the observation of new properties of secondary cosmic rays Li, Be, and B measured in the rigidity (momentum per unit charge) range 1.9 GV to 3.3 TV with a total of $5.4 \times 10^6$ nuclei collected by AMS during the first five years of operation aboard the International Space Station. The Li and B fluxes have an identical rigidity dependence above 7 GV and all three fluxes have an identical rigidity dependence above 30 GV with the Li/Be flux ratio of $2.0 \pm 0.1$. [...]
2018 - 8 p. - Published in : Phys. Rev. Lett. 120 (2018) 021101 Fulltext: PDF;
5.
Observation of the Identical Rigidity Dependence of He, C, and O Cosmic Rays at High Rigidities by the Alpha Magnetic Spectrometer on the International Space Station / Aguilar, M (Madrid, CIEMAT) ; Ali Cavasonza, L (IAS, Julich ; JCHP, Julich) ; Alpat, B (INFN, Perugia) ; Ambrosi, G (INFN, Perugia) ; Arruda, L (LIP, Lisbon) ; Attig, N (IAS, Julich ; JCHP, Julich) ; Aupetit, S (LPSC, Grenoble) ; Azzarello, P (Geneva U.) ; Bachlechner, A (IAS, Julich ; JCHP, Julich) ; Barao, F (LIP, Lisbon) et al. /AMS
We report the observation of new properties of primary cosmic rays He, C, and O measured in the rigidity (momentum/charge) range 2 GV to 3 TV with 90×106 helium, 8.4×106 carbon, and 7.0×106 oxygen nuclei collected by the Alpha Magnetic Spectrometer (AMS) during the first five years of operation. Above 60 GV, these three spectra have identical rigidity dependence. [...]
2017 - 8 p. - Published in : Phys. Rev. Lett. 119 (2017) 251101 Fulltext: PDF;

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