Measurements of Cosmic-ray Low-energy Antiproton and Proton Spectra in a Transient Period of the Solar Field Reversal

Preprint

25 January 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0109007

Abstract

The energy spectra of cosmic-ray low-energy antiprotons and protons have been measured by BESS in 1999 and 2000, during a period covering the solar magnetic field reversal. Based on these measurements, a sudden increase of the antiproton to proton flux ratio following the solar magnetic field reversal was observed, and it generally agrees with a drift model of the solar modulation.

Keywords

MAGNETIC FIELD REVERSAL
LOW ENERGY ANTIPROTON
ENERGY ANTIPROTONS
COSMIC RAY LOW
RAY LOW ENERGY

All Related Versions

Version 1, 2001-09-02, ArXiv
Version 2, 2002-01-25, ArXiv
Published version: Physical Review Letters, 88 (5), 051101.

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