Measurement of the cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight over Antarctica

Details Measurement of the cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight over Antarctica Measurement of the cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight over Antarctica

2011-07-29

arxiv.org/abs/1107.6000v2

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

4 pages, 4 figures, submitted to Physical Review Letters

Scientific paper

The energy spectrum of cosmic-ray antiprotons from 0.17 to 3.5 GeV has been measured using 7886 antiprotons detected by BESS-Polar II during a long-duration flight over Antarctica near solar minimum in December 2007 and January 2008. This shows good consistency with secondary antiproton calculations. Cosmologically primary antiprotons have been investigated by comparing measured and calculated antiproton spectra. BESS-Polar II data show no evidence of primary antiprotons from evaporation of primordial black holes.

Affiliated with

Also associated with

No associations

Rating

Measurement of the cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight over Antarctica does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurement of the cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight over Antarctica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight over Antarctica will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-319376