Cosmic ray antiprotons at high energies

被引:63
|
作者
Winkler, Martin Wolfgang [1 ,2 ]
机构
[1] KTH Royal Inst Technol, NORDITA, Roslagstullsbacken 23, S-10691 Stockholm, Sweden
[2] Stockholm Univ, Roslagstullsbacken 23, S-10691 Stockholm, Sweden
关键词
cosmic ray experiments; cosmic ray theory; cosmic rays detectors; dark matter experiments; PROTON-PROTON COLLISIONS; STRANGE-PARTICLE-PRODUCTION; LARGE TRANSVERSE-MOMENTUM; PP INTERACTIONS; INCLUSIVE PRODUCTION; CROSS-SECTION; PARAMETRIZATION; MULTIPLICITIES; SPECTRA; HADRONS;
D O I
10.1088/1475-7516/2017/02/048
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Cosmic ray antiprotons provide a powerful tool to probe dark matter annihilations in our galaxy. The sensitivity of this important channel is, however, diluted by sizable uncertainties in the secondary antiproton background. In this work, we improve the calculation of secondary antiproton production with a particular focus on the high energy regime. We employ the most recent collider data and identify a substantial increase of antiproton cross sections with energy. This increase is driven by the violation of Feynman scaling as well as by an enhanced strange hyperon production. The updated antiproton production cross sections are made publicly available for independent use in cosmic ray studies. In addition, we provide the correlation matrix of cross section uncertainties for the AMS-02 experiment. At high energies, the new cross sections improve the compatibility of the AMS-02 data with a pure secondary origin of antiprotons in cosmic rays.
引用
收藏
页数:24
相关论文
共 50 条
  • [1] OBSERVATION OF COSMIC-RAY ANTIPROTONS AT ENERGIES BELOW 500 MEV
    YOSHIMURA, K
    ORITO, S
    UEDA, I
    ANRAKU, K
    GOLDEN, R
    IMORI, M
    INABA, S
    KIMBELL, B
    KIMURA, N
    MAKIDA, Y
    MATSUMOTO, H
    MATSUNAGA, H
    MITCHELL, J
    MOTOKI, M
    NISHIMURA, J
    NOZAKI, M
    ORMES, J
    SAEKI, T
    STREITMATTER, R
    SUZUKI, J
    TANAKA, K
    YAJIMA, N
    YAMAGAMI, T
    YAMAMOTO, A
    YOSHIDA, T
    [J]. PHYSICAL REVIEW LETTERS, 1995, 75 (21) : 3792 - 3795
  • [2] COSMIC RAY MUONS AT HIGH ENERGIES
    DULLER, NM
    [J]. SCIENCE, 1962, 138 (3544) : 986 - &
  • [3] Cosmic-ray antiprotons and antinuclei
    Yoshimura, K
    [J]. ORIGIN AND ACCELERATION OF COSMIC RAYS, 2001, 27 (04): : 693 - 703
  • [4] Cosmic-ray antiprotons in the galaxy
    Sina, R
    Ptuskin, VS
    Seo, ES
    [J]. MARS INTERNATIONAL REFERENCE ATMOSPHERE, LIVING WITH A STAR AND FUNDAMENTAL PHYSICS, 2005, 35 (01): : 147 - 150
  • [5] Cosmic ray antiprotons from nearby cosmic accelerators
    Joshi, Jagdish C.
    Gupta, Nayantara
    [J]. ASTROPARTICLE PHYSICS, 2015, 65 : 108 - 110
  • [6] Cosmic Ray Muons of High and Ultrahigh Energies
    Petrukhin, A. A.
    Bogdanov, A. G.
    Kokoulin, R. P.
    [J]. PHYSICS OF PARTICLES AND NUCLEI, 2018, 49 (04) : 639 - 651
  • [7] Cosmic Ray Muons of High and Ultrahigh Energies
    A. A. Petrukhin
    A. G. Bogdanov
    R. P. Kokoulin
    [J]. Physics of Particles and Nuclei, 2018, 49 : 639 - 651
  • [8] ASTROPHYSICAL IMPLICATIONS OF COSMIC-RAY ANTIPROTONS
    GAISSER, TK
    LEVY, EH
    [J]. PHYSICAL REVIEW D, 1974, 10 (06): : 1731 - 1735
  • [9] Cosmic ray antiprotons and the single source model
    Erlykin, A. D.
    Wolfendale, A. W.
    [J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2015, 42 (11)
  • [10] Theoretical predictions for cosmic ray secondary antiprotons
    Gaisser, TK
    Schaefer, RK
    [J]. COSMIC RADIATION: SPECTRA AND COMPOSITION, 1997, 19 (05): : 775 - 780