Back to Search
Start Over
Measurement of cosmic-ray low-energy antiproton spectrum with the first BESS-Polar Antarctic flight
- Source :
- Phys.Lett.B670:103-108,2008
- Publication Year :
- 2008
-
Abstract
- The BESS-Polar spectrometer had its first successful balloon flight over Antarctica in December 2004. During the 8.5-day long-duration flight, almost 0.9 billion events were recorded and 1,520 antiprotons were detected in the energy range 0.1-4.2 GeV. In this paper, we report the antiproton spectrum obtained, discuss the origin of cosmic-ray antiprotons, and use antiprotons to probe the effect of charge sign dependent drift in the solar modulation.<br />Comment: 18 pages, 1 table, 5 figures, submitted to Physics Letters B
- Subjects :
- Astrophysics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys.Lett.B670:103-108,2008
- Publication Type :
- Report
- Accession number :
- edsarx.0805.1754
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.physletb.2008.10.053