Transport of exotic anti-nuclei: I- Fast formulae for antiproton fluxes

Details Transport of exotic anti-nuclei: I- Fast formulae for antiproton fluxes Transport of exotic anti-nuclei: I- Fast formulae for antiproton fluxes

2006-09-19

arxiv.org/abs/astro-ph/0609522v3

Astronomy and Astrophysics

Astrophysics

8 pages, 3 figures (submitted). Stand-alone code for exotic anti-proton propagation can be downloaded at http://wwwlapp.in2p

Scientific paper

The Galactic secondary cosmic ray anti-proton flux calculated with different propagation models is fairly consistent with data, and the associated propagation uncertainty is small. This is not the case for any anti-proton exotic component of the dark matter halo. Detailed propagation models are mandatory if the ultimate goal is to explain an excess. However, simpler and faster approximate formulae for anti-protons are an attractive alternative to quickly check that a given dark matter model is not inconsistent with the anti-proton observed flux. This paper provides such formulae. In addition, they could be used to put constraints on new physics in this channel, where an extensive scan of a large parameter space could otherwise be quite expensive in computer ressources.

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