Expected enhancement of the primary antiproton flux at the solar minimum

T. Mitsui, K. Maki, S. Orito

研究成果: Article査読

49 被引用数 (Scopus)

抄録

We calculate the solar-modulated energy spectra of cosmic-ray antiprotons (p̄'s) from two candidate primary sources, i.e., evaporating primordial black holes and the annihilation of neutralino dark matter, as well as for the secondary p̄'s produced by cosmic-ray interactions with interstellar gas. A large enhancement toward the solar minimum phase emerges in the low-energy flux of p̄'s from the primary sources, whereas the flux of the secondary p̄'s, falling steeply below 2 GeV, does not significantly vary. This enables us to conduct a very sensitive search for primary p̄ components by precisely measuring the p̄ spectrum, especially at low energies, throughout the forthcoming solar minimum phase.

本文言語English
ページ(範囲)169-175
ページ数7
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
389
1
DOI
出版ステータスPublished - 1996 12 5
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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