Successive Measurements of Cosmic-Ray Antiproton Spectrum in a Positive Phase of the Solar Cycle

Preprint

19 October 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0010381

Abstract

The energy spectrum of cosmic-ray antiprotons has been measured by BESS successively in 1993, 1995, 1997 and 1998. In total, 848 antiprotons were clearly identified in energy range 0.18 to 4.20 GeV. From these successive measurements of the antiproton spectrum at various solar activity, we discuss about the effect of the solar modulation and the origin of cosmic-ray antiprotons. Measured antiproton ratios were nearly identical during this period, and were consistent with a prediction taking the charge dependent solar modulation into account.

Keywords

SUCCESSIVE MEASUREMENTS
COSMIC RAY ANTIPROTONS
ANTIPROTON SPECTRUM
SOLAR MODULATION
RAY ANTIPROTONS
POSITIVE PHASE
ENERGY

All Related Versions

Version 1, 2000-10-19, ArXiv
Published version: Astroparticle Physics, 16 (2), 121.

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