{ "id": "1106.5711", "version": "v3", "published": "2011-06-28T15:55:03.000Z", "updated": "2012-05-21T11:52:15.000Z", "title": "Neutrinos from WIMP annihilation in the Sun : Implications of a self-consistent model of the Milky Way's dark matter halo", "authors": [ "Susmita Kundu", "Pijushpani Bhattacharjee" ], "comment": "Replaced with revised version; Latest published results from Super-Kamiokande incorporated; quantitative limits on the branching fractions of various WIMP annihilation channels become more stringent by factors of 3 - 4; references added; overall conclusions unchanged; 17 pages, Latex, 6 Figures, accepted for publication in Phys. Rev. D", "journal": "Phys. Rev. D 85, 123533 (2012)", "doi": "10.1103/PhysRevD.85.123533", "categories": [ "astro-ph.GA", "hep-ph" ], "abstract": "Upper limits on the spin-independent (SI) as well as spin-dependent (SD) elastic scattering cross sections of WIMPs with protons, imposed by the Super-Kamiokande (S-K) upper limit on the neutrino flux from WIMP annihilation in the Sun, and their compatibility with the \"DAMA-compatible\" regions of the WIMP parameter space within which the annual modulation signal observed by the DAMA/LIBRA experiment is compatible with the null results of other direct detection experiments, are studied within the frame work of a self-consistent model of the finite-size dark matter (DM) halo of the Galaxy, the parameters of which are determined by a fit to the rotation curve data of the Galaxy. We find that the S-K implied upper limits on the WIMP-proton elastic cross section as a function of WIMP mass impose stringent restrictions on the branching fractions of the various WIMP annihilation channels. For SI interaction, while the S-K upper limits are consistent with the DAMA-compatible region of the WIMP parameter space if the WIMPs annihilate dominantly to $\\bbarb$\\ and/or $\\cbarc$, portions of the DAMA-compatible region can be excluded if WIMP annihilations to $\\tautau$ and $\\nu\\anu$ occur at larger than ~ 10% and 0.1% levels, respectively. For SD interaction, the restrictions on the possible annihilation channels are much more stringent, essentially ruling out the DAMA-compatible region of the WIMP parameter space if the relatively low-mass ($\\sim$ 2 -- 20 GeV) WIMPs under consideration annihilate predominantly to any mixture of $\\bbarb$, \\ $\\cbarc$, \\ $\\tautau$, \\ and $\\nu\\anu$ final states.", "revisions": [ { "version": "v3", "updated": "2012-05-21T11:52:15.000Z" } ], "analyses": { "subjects": [ "95.35.+d" ], "keywords": [ "milky ways dark matter halo", "wimp annihilation", "self-consistent model", "wimp parameter space", "mass impose stringent restrictions" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review D", "year": 2012, "month": "Jun", "volume": 85, "number": 12, "pages": 123533 }, "note": { "typesetting": "LaTeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable", "inspire": 916039, "adsabs": "2012PhRvD..85l3533K" } } }