{ "id": "1312.3701", "version": "v2", "published": "2013-12-13T04:36:52.000Z", "updated": "2013-12-17T08:05:33.000Z", "title": "Constraints on Dark Matter annihilation and Its Equation of State after Planck Data", "authors": [ "Lixin Xu" ], "comment": "9 pages, 2 figures, invited review for the special issue of MPLA. Reference updated", "categories": [ "astro-ph.CO" ], "abstract": "In this paper, the annihilation of dark matter $f_d\\epsilon_0$ with nonzero equation of state $w_{dm}$ was studied by using the currently available cosmic observations which include the geometric and dynamic measurements. The constrained results show they are anti-correlated and are $w_{dm}=0.000390_{-0.000753}^{+0.000754}$ and $f_d\\epsilon_0=1.172_{-1.172}^{+0.243}$ respectively in $1\\sigma$ regions. With the including of possible annihilation of dark matter, no significant deviation from $\\Lambda$CDM model was found in the $1\\sigma$ region.", "revisions": [ { "version": "v2", "updated": "2013-12-17T08:05:33.000Z" } ], "analyses": { "subjects": [ "98.80.Cq", "95.35.+d", "98.70.Vc" ], "keywords": [ "dark matter annihilation", "planck data", "constraints", "cdm model", "significant deviation" ], "tags": [ "review article", "journal article" ], "publication": { "doi": "10.1142/S0217732314400045", "journal": "Modern Physics Letters A", "year": 2014, "month": "Nov", "volume": 29, "number": 37, "pages": 1440004 }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1269297, "adsabs": "2014MPLA...2940004X" } } }