Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station

(AMS Collaboration)

doi:10.1103/PhysRevLett.121.051102

Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station

(AMS Collaboration)

电气工程学院

CIEMAT
RWTH Aachen University
National Institute for Nuclear Physics
Laboratório de Instrumentação e Física Experimental de Partículas
Jülich Research Centre
Université Grenoble Alpes
University of Geneva
CERN
University of Trento
CAS - Institute of High Energy Physics
University of Turku
ASI
Massachusetts Institute of Technology
University of Perugia
Karlsruhe Institute of Technology
University of Hawai'i at Mānoa
NASA Johnson Space Center
University of Rome La Sapienza
Universidade de São Paulo
Université Savoie Mont Blanc
National Research Council of Italy
Ewha Womans University
National Central University
University of Chinese Academy of Sciences
Shandong University

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111 引用（Scopus）

摘要

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. Based on 23.5×106 events, we report the observation of short-term structures on the timescale of months coincident in both the electron flux and the positron flux. These structures are not visible in the e+/e- flux ratio. The precision measurements across the solar polarity reversal show that the ratio exhibits a smooth transition over 830±30 days from one value to another. The midpoint of the transition shows an energy dependent delay relative to the reversal and changes by 260±30 days from 1 to 6 GeV.

源语言	英语
文章编号	051102
期刊	Physical Review Letters
卷	121
期	5
DOI	https://doi.org/10.1103/PhysRevLett.121.051102
出版状态	已出版 - 31 7月 2018

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10.1103/PhysRevLett.121.051102

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@article{580a819f39f84b48b4ce8320e530d331,

title = "Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station",

abstract = "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. Based on 23.5×106 events, we report the observation of short-term structures on the timescale of months coincident in both the electron flux and the positron flux. These structures are not visible in the e+/e- flux ratio. The precision measurements across the solar polarity reversal show that the ratio exhibits a smooth transition over 830±30 days from one value to another. The midpoint of the transition shows an energy dependent delay relative to the reversal and changes by 260±30 days from 1 to 6 GeV.",

author = "\{(AMS Collaboration)\} and M. Aguilar and Cavasonza, \{L. Ali\} and G. Ambrosi and L. Arruda and N. Attig and S. Aupetit and P. Azzarello and A. Bachlechner and F. Barao and A. Barrau and L. Barrin and A. Bartoloni and L. Basara and \{Ba{\c s}eǧmez-Du Pree\}, S. and M. Battarbee and R. Battiston and U. Becker and M. Behlmann and B. Beischer and J. Berdugo and B. Bertucci and Bindel, \{K. F.\} and V. Bindi and \{De Boer\}, W. and K. Bollweg and V. Bonnivard and B. Borgia and Boschini, \{M. J.\} and M. Bourquin and Bueno, \{E. F.\} and J. Burger and F. Cadoux and Cai, \{X. D.\} and M. Capell and S. Caroff and J. Casaus and G. Castellini and F. Cervelli and Chae, \{M. J.\} and Chang, \{Y. H.\} and Chen, \{A. I.\} and Chen, \{G. M.\} and Chen, \{H. S.\} and Y. Chen and L. Cheng and Chou, \{H. Y.\} and E. Choumilov and V. Choutko and Chung, \{C. H.\} and Wang, \{Q. L.\}",

note = "Publisher Copyright: {\textcopyright} 2018 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the «https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2018",

month = jul,

day = "31",

doi = "10.1103/PhysRevLett.121.051102",

language = "英语",

volume = "121",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "5",

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TY - JOUR

T1 - Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station

AU - (AMS Collaboration)

AU - Aguilar, M.

AU - Cavasonza, L. Ali

AU - Ambrosi, G.

AU - Arruda, L.

AU - Attig, N.

AU - Aupetit, S.

AU - Azzarello, P.

AU - Bachlechner, A.

AU - Barao, F.

AU - Barrau, A.

AU - Barrin, L.

AU - Bartoloni, A.

AU - Basara, L.

AU - Başeǧmez-Du Pree, S.

AU - Battarbee, M.

AU - Battiston, R.

AU - Becker, U.

AU - Behlmann, M.

AU - Beischer, B.

AU - Berdugo, J.

AU - Bertucci, B.

AU - Bindel, K. F.

AU - Bindi, V.

AU - De Boer, W.

AU - Bollweg, K.

AU - Bonnivard, V.

AU - Borgia, B.

AU - Boschini, M. J.

AU - Bourquin, M.

AU - Bueno, E. F.

AU - Burger, J.

AU - Cadoux, F.

AU - Cai, X. D.

AU - Capell, M.

AU - Caroff, S.

AU - Casaus, J.

AU - Castellini, G.

AU - Cervelli, F.

AU - Chae, M. J.

AU - Chang, Y. H.

AU - Chen, A. I.

AU - Chen, G. M.

AU - Chen, H. S.

AU - Chen, Y.

AU - Cheng, L.

AU - Chou, H. Y.

AU - Choumilov, E.

AU - Choutko, V.

AU - Chung, C. H.

AU - Wang, Q. L.

N1 - Publisher Copyright: © 2018 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the «https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2018/7/31

Y1 - 2018/7/31

N2 - 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. Based on 23.5×106 events, we report the observation of short-term structures on the timescale of months coincident in both the electron flux and the positron flux. These structures are not visible in the e+/e- flux ratio. The precision measurements across the solar polarity reversal show that the ratio exhibits a smooth transition over 830±30 days from one value to another. The midpoint of the transition shows an energy dependent delay relative to the reversal and changes by 260±30 days from 1 to 6 GeV.

AB - 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. Based on 23.5×106 events, we report the observation of short-term structures on the timescale of months coincident in both the electron flux and the positron flux. These structures are not visible in the e+/e- flux ratio. The precision measurements across the solar polarity reversal show that the ratio exhibits a smooth transition over 830±30 days from one value to another. The midpoint of the transition shows an energy dependent delay relative to the reversal and changes by 260±30 days from 1 to 6 GeV.

UR - https://www.scopus.com/pages/publications/85051533998

U2 - 10.1103/PhysRevLett.121.051102

DO - 10.1103/PhysRevLett.121.051102

M3 - 文章

C2 - 30118287

AN - SCOPUS:85051533998

SN - 0031-9007

VL - 121

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 051102

ER -

Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station

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