{ "id": "1007.1160", "version": "v2", "published": "2010-07-07T15:07:25.000Z", "updated": "2011-09-27T19:15:11.000Z", "title": "New Constraints from PAMELA anti-proton data on Annihilating and Decaying Dark Matter", "authors": [ "Ilias Cholis" ], "comment": "7 pages, 3 figures, 3 tables", "journal": "JCAP 09 (2011) 007", "doi": "10.1088/1475-7516/2011/09/007", "categories": [ "astro-ph.HE", "astro-ph.GA", "hep-ph" ], "abstract": "Recently the PAMELA experiment has released its updated anti-proton flux and anti-proton to proton flux ratio data up to energies of ~200GeV. With no clear excess of cosmic ray anti-protons at high energies, one can extend constraints on the production of anti-protons from dark matter. In this letter, we consider both the cases of dark matter annihilating and decaying into standard model particles that produce significant numbers of anti-protons. We provide two sets of constraints on the annihilation cross-sections/decay lifetimes. In the one set of constraints we ignore any source of anti-protons other than dark matter, which give the highest allowed cross-sections/inverse lifetimes. In the other set we include also anti-protons produced in collisions of cosmic rays with interstellar medium nuclei, getting tighter but more realistic constraints on the annihilation cross-sections/decay lifetimes.", "revisions": [ { "version": "v2", "updated": "2011-09-27T19:15:11.000Z" } ], "analyses": { "keywords": [ "pamela anti-proton data", "decaying dark matter", "constraints", "annihilation cross-sections/decay lifetimes", "proton flux ratio data" ], "tags": [ "journal article" ], "publication": { "publisher": "IOP", "journal": "J. Cosmol. Astropart. Phys." }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "inspire": 860583, "adsabs": "2010arXiv1007.1160C" } } }