Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A fussy revisitation of antiprotons as a tool for Dark Matter searches   Antiprotons are regarded as a powerful probe for Dark Matter (DM) indirect
detection and indeed current data from \PAMELA\ have been shown to lead to
stringent constraints. However, in order to exploit their
constraining/discovery power properly, great attention must be put into effects
(linked to their propagation in the Galaxy) which may be perceived as
subleading but actually prove to be quite relevant. We revisit the computation
of the astrophysical background and of the DM antiproton fluxes fully including
the effects of: diffusive reacceleration, energy losses including tertiary
component and solar modulation (in a force field approximation). Using the
updated proton and helium fluxes just released by the \AMS\ experiment we
reevaluate the secondary astrophysical antiproton to proton ratio and its
uncertainties, and compare it with the ratio preliminarly reported by \AMS. We
find no unambiguous evidence for a significant excess with respect to
expectations. Yet, some preference for a flatter energy dependence of the
diffusion coefficient (with respect to the {\sc Med} benchmark often used in
the literature) starts to emerge. Finally, we provide a first assessment of the
room left for exotic components such as Galactic Dark Matter annihilation,
deriving new stringent constraints.

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The categories of this paper are: hep-ph
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The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
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The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
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The categories of this paper are: math
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin