{ "id": "1302.3884", "version": "v3", "published": "2013-02-15T21:00:01.000Z", "updated": "2013-08-20T15:56:09.000Z", "title": "New stellar constraints on dark photons", "authors": [ "Haipeng An", "Maxim Pospelov", "Josef Pradler" ], "comment": "Final version, 13 pages 2 figures, published at PLB", "journal": "Physics Letters B, Volume 725, 2013, Pages 190-195", "doi": "10.1016/j.physletb.2013.07.008", "categories": [ "hep-ph", "astro-ph.CO", "astro-ph.SR", "hep-ex" ], "abstract": "We consider the stellar production of vector states V within the minimal model of \"dark photons\". We show that when the Stuckelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as \\kappa^2 m_V^2, where \\kappa and m_V are the mixing angle with the photon and the mass of the dark state. This is in contrast with earlier erroneous claims in the literature that the emission rate decouples as the forth power of the mass. We derive ensuing constraints on the (\\kappa, m_V) parameter space by calculating the cooling rates for the Sun and red giant stars. We find that stellar bounds for m_V < 10 eV are significantly strengthened, to the extent that all current \"light-shining-through-wall\" experiments find themselves within deeply excluded regions.", "revisions": [ { "version": "v3", "updated": "2013-08-20T15:56:09.000Z" } ], "analyses": { "keywords": [ "dark photons", "stellar constraints", "emission rate decouples", "dark state", "dark vector" ], "tags": [ "journal article" ], "publication": { "journal": "Physics Letters B", "year": 2013, "month": "Oct", "volume": 725, "number": "4-5", "pages": 190 }, "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1219866, "adsabs": "2013PhLB..725..190A" } } }