{ "id": "0712.4038", "version": "v2", "published": "2007-12-25T00:05:36.000Z", "updated": "2008-10-01T02:55:35.000Z", "title": "Diffuse $γ$-rays and $\\bar{p}$ flux from dark matter annihilation -- a model for consistent results with EGRET and cosmic ray data", "authors": [ "Xiao-Jun Bi", "Juan Zhang", "Qiang Yuan" ], "comment": "29 pages, 13 figures; the published version", "journal": "Phys.Rev.D78:043001,2008", "doi": "10.1103/PhysRevD.78.043001", "categories": [ "astro-ph", "hep-ph" ], "abstract": "In this work we develop a new propagation model for the Galactic cosmic rays based on the GALPROP code, including contributions from dark matter annihilation. The model predicts compatible Galactic diffuse $\\gamma$ ray spectra with EGRET data in all sky regions. It also gives consistent results of the diffuse $\\gamma$ ray longitude and latitude distributions. Further the results for B/C, $^{10}$Be/$^9$Be, proton, electron and antiproton spectra are also consistent with cosmic ray measurements. In the model we have taken a universal proton spectrum throughout the Galaxy without introducing large fluctuation for the proton energy loss is negligible. The dark matter annihilation signals are `boosted' after taking the contribution from subhalos into account. Another interesting feature of the model is that it gives better description of the diffuse $\\gamma$ rays when taking the source distribution compatible with supernova remnants data, which is different from previous studies.", "revisions": [ { "version": "v2", "updated": "2008-10-01T02:55:35.000Z" } ], "analyses": { "subjects": [ "13.85.Tp", "98.70.Sa", "95.35.+d", "98.38.Cp" ], "keywords": [ "dark matter annihilation", "cosmic ray data", "consistent results", "model predicts compatible galactic diffuse", "universal proton spectrum throughout" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review D", "year": 2008, "month": "Aug", "volume": 78, "number": 4, "pages": "043001" }, "note": { "typesetting": "TeX", "pages": 29, "language": "en", "license": "arXiv", "status": "editable", "inspire": 771447, "adsabs": "2008PhRvD..78d3001B" } } }