pith. sign in

arxiv: astro-ph/9906426 · v1 · pith:O6BOGQ4Lnew · submitted 1999-06-26 · 🌌 astro-ph

Precision Measurement of Cosmic-Ray Antiproton Spectrum

S. Orito (1) , T. Maeno (1) , H. Matsunaga (1) , K. Abe (1) , K. Anraku (1) , Y. Asaoka (1) , M. Fujikawa (1) , M. Imori (1)
show 32 more authors
M. Ishino (7) Y. Makida (2) N. Matsui (1) H. Matsumoto (3) J. Mitchell (4) T. Mitsui (3) A. Moiseev (4) M. Motoki (1) J. Nishimura (1) M. Nozaki (3) J. Ormes (4) T. Saeki (1) T. Sanuki (1) M. Sasaki (3) E. S. Seo (5) Y. Shikaze (1) T. Sonoda (1) R. Streitmatter (4) J. Suzuki (2) K. Tanaka (2) I. Ueda (1) N. Yajima (6) T. Yamagami (6) A. Yamamoto (2) T. Yoshida (2) K. Yoshimura (1) ((1) University of Tokyo (2) KEK (3) Kobe University (4) NASA/GSFC (5) University of Maryland (6) ISAS (7) Kyoto University)
This is my paper
classification 🌌 astro-ph
keywords cosmic-rayantiprotonspropagationspectrumantiprotonbesspeaksolar
0
0 comments X
read the original abstract

The energy spectrum of cosmic-ray antiprotons has been measured in the range 0.18 to 3.56 GeV, based on 458 antiprotons collected by BESS in recent solar-minimum period. We have detected for the first time a distinctive peak at 2 GeV of antiprotons originating from cosmic-ray interactions with the interstellar gas. The peak spectrum is reproduced by theoretical calculations, implying that the propagation models are basically correct and that different cosmic-ray species undergo a universal propagation. Future BESS flights toward the solar maximum will help us to study the solar modulation and the propagation in detail and to search for primary antiproton components.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Constraints on Primordial Black Holes

    astro-ph.CO 2020-02 accept novelty 4.0

    Updated compilation shows PBHs are tightly constrained across 55 orders of magnitude in mass, ruling out dominant dark matter contributions except in narrow windows, with many limits carrying observational uncertainties.