Antiproton Flux, Antiproton-to-Proton Flux Ratio, and Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station.

نویسندگان

  • M Aguilar
  • L Ali Cavasonza
  • B Alpat
  • G Ambrosi
  • L Arruda
  • N Attig
  • S Aupetit
  • P Azzarello
  • A Bachlechner
  • F Barao
  • A Barrau
  • L Barrin
  • A Bartoloni
  • L Basara
  • S Başeǧmez-du Pree
  • M Battarbee
  • R Battiston
  • J Bazo
  • U Becker
  • M Behlmann
  • B Beischer
  • J Berdugo
  • B Bertucci
  • V Bindi
  • G Boella
  • W de Boer
  • K Bollweg
  • V Bonnivard
  • B Borgia
  • M J Boschini
  • M Bourquin
  • E F Bueno
  • J Burger
  • F Cadoux
  • X D Cai
  • M Capell
  • S Caroff
  • J Casaus
  • G Castellini
  • I Cernuda
  • F Cervelli
  • M J Chae
  • Y H Chang
  • A I Chen
  • G M Chen
  • H S Chen
  • L Cheng
  • H Y Chou
  • E Choumilov
  • V Choutko
  • C H Chung
  • C Clark
  • R Clavero
  • G Coignet
  • C Consolandi
  • A Contin
  • C Corti
  • B Coste
  • W Creus
  • M Crispoltoni
  • Z Cui
  • Y M Dai
  • C Delgado
  • S Della Torre
  • M B Demirköz
  • L Derome
  • S Di Falco
  • F Dimiccoli
  • C Díaz
  • P von Doetinchem
  • F Dong
  • F Donnini
  • M Duranti
  • D D'Urso
  • A Egorov
  • A Eline
  • T Eronen
  • J Feng
  • E Fiandrini
  • E Finch
  • P Fisher
  • V Formato
  • Y Galaktionov
  • G Gallucci
  • B García
  • R J García-López
  • C Gargiulo
  • H Gast
  • I Gebauer
  • M Gervasi
  • A Ghelfi
  • F Giovacchini
  • P Goglov
  • D M Gómez-Coral
  • J Gong
  • C Goy
  • V Grabski
  • D Grandi
  • M Graziani
  • I Guerri
  • K H Guo
  • M Habiby
  • S Haino
  • K C Han
  • Z H He
  • M Heil
  • J Hoffman
  • T H Hsieh
  • H Huang
  • Z C Huang
  • C Huh
  • M Incagli
  • M Ionica
  • W Y Jang
  • H Jinchi
  • S C Kang
  • K Kanishev
  • G N Kim
  • K S Kim
  • Th Kirn
  • C Konak
  • O Kounina
  • A Kounine
  • V Koutsenko
  • M S Krafczyk
  • G La Vacca
  • E Laudi
  • G Laurenti
  • I Lazzizzera
  • A Lebedev
  • H T Lee
  • S C Lee
  • C Leluc
  • H S Li
  • J Q Li
  • J Q Li
  • Q Li
  • T X Li
  • W Li
  • Z H Li
  • Z Y Li
  • S Lim
  • C H Lin
  • P Lipari
  • T Lippert
  • D Liu
  • Hu Liu
  • S Q Lu
  • Y S Lu
  • K Luebelsmeyer
  • F Luo
  • J Z Luo
  • S S Lv
  • R Majka
  • C Mañá
  • J Marín
  • T Martin
  • G Martínez
  • N Masi
  • D Maurin
  • A Menchaca-Rocha
  • Q Meng
  • D C Mo
  • L Morescalchi
  • P Mott
  • T Nelson
  • J Q Ni
  • N Nikonov
  • F Nozzoli
  • P Nunes
  • A Oliva
  • M Orcinha
  • F Palmonari
  • C Palomares
  • M Paniccia
  • M Pauluzzi
  • S Pensotti
  • R Pereira
  • N Picot-Clemente
  • F Pilo
  • C Pizzolotto
  • V Plyaskin
  • M Pohl
  • V Poireau
  • A Putze
  • L Quadrani
  • X M Qi
  • X Qin
  • Z Y Qu
  • T Räihä
  • P G Rancoita
  • D Rapin
  • J S Ricol
  • I Rodríguez
  • S Rosier-Lees
  • A Rozhkov
  • D Rozza
  • R Sagdeev
  • J Sandweiss
  • P Saouter
  • S Schael
  • S M Schmidt
  • A Schulz von Dratzig
  • G Schwering
  • E S Seo
  • B S Shan
  • J Y Shi
  • T Siedenburg
  • D Son
  • J W Song
  • W H Sun
  • M Tacconi
  • X W Tang
  • Z C Tang
  • L Tao
  • D Tescaro
  • Samuel C C Ting
  • S M Ting
  • N Tomassetti
  • J Torsti
  • C Türkoğlu
  • T Urban
  • V Vagelli
  • E Valente
  • C Vannini
  • E Valtonen
  • M Vázquez Acosta
  • M Vecchi
  • M Velasco
  • J P Vialle
  • V Vitale
  • S Vitillo
  • L Q Wang
  • N H Wang
  • Q L Wang
  • X Wang
  • X Q Wang
  • Z X Wang
  • C C Wei
  • Z L Weng
  • K Whitman
  • J Wienkenhöver
  • M Willenbrock
  • H Wu
  • X Wu
  • X Xia
  • R Q Xiong
  • W Xu
  • Q Yan
  • J Yang
  • M Yang
  • Y Yang
  • H Yi
  • Y J Yu
  • Z Q Yu
  • S Zeissler
  • C Zhang
  • J Zhang
  • J H Zhang
  • S D Zhang
  • S W Zhang
  • Z Zhang
  • Z M Zheng
  • Z Q Zhu
  • H L Zhuang
  • V Zhukov
  • A Zichichi
  • N Zimmermann
  • P Zuccon
چکیده

A precision measurement by AMS of the antiproton flux and the antiproton-to-proton flux ratio in primary cosmic rays in the absolute rigidity range from 1 to 450 GV is presented based on 3.49×10^{5} antiproton events and 2.42×10^{9} proton events. The fluxes and flux ratios of charged elementary particles in cosmic rays are also presented. In the absolute rigidity range ∼60 to ∼500  GV, the antiproton p[over ¯], proton p, and positron e^{+} fluxes are found to have nearly identical rigidity dependence and the electron e^{-} flux exhibits a different rigidity dependence. Below 60 GV, the (p[over ¯]/p), (p[over ¯]/e^{+}), and (p/e^{+}) flux ratios each reaches a maximum. From ∼60 to ∼500  GV, the (p[over ¯]/p), (p[over ¯]/e^{+}), and (p/e^{+}) flux ratios show no rigidity dependence. These are new observations of the properties of elementary particles in the cosmos.

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عنوان ژورنال:
  • Physical review letters

دوره 117 9  شماره 

صفحات  -

تاریخ انتشار 2016