Interstellar Low Energy Antiprotons as a Probe of Dark Matter and Primordial Black Holes

Details Interstellar Low Energy Antiprotons as a Probe of Dark Matter and Primordial Black Holes Interstellar Low Energy Antiprotons as a Probe of Dark Matter and Primordial Black Holes

1999-12-07

arxiv.org/abs/astro-ph/9912140v1

Astronomy and Astrophysics

Astrophysics

4 pages

Scientific paper

Cosmic ray antiprotons can originate from dark matter annihilating into quarks that subsequently decay into antiprotons. Evaporation of primordial black holes also can produce a significant antiproton flux. Since the spectrum of secondary antiprotons from cosmic ray interactions peaks at ~ 2 GeV and goes down sharply at lower energy, there is a window at energies < 1 GeV in which to look for excess antiprotons as a signature of these exotic antiproton sources. However, in the vicinity of the Earth low energy particles are strongly modulated by the solar wind, which makes any analysis ambiguous. The adverse effects of the solar wind can be avoided by placing a low energy antiproton spectrometer aboard an interstellar probe. The theoretical predictions are reviewed and the preliminary design of a light-weight, low-power instrument to make the measurements and a summary of the anticipated results are given in this paper.

Affiliated with

Also associated with

No associations

Rating

Interstellar Low Energy Antiprotons as a Probe of Dark Matter and Primordial Black Holes 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 Interstellar Low Energy Antiprotons as a Probe of Dark Matter and Primordial Black Holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar Low Energy Antiprotons as a Probe of Dark Matter and Primordial Black Holes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-660241