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dc.contributor.authorBaumgart, Matthew
dc.contributor.authorCohen, Timothy
dc.contributor.authorMoult, Ian
dc.contributor.authorSolon, Mikhail P
dc.contributor.authorVaidya, Varun
dc.contributor.authorRodd, Nicholas Llewellyn
dc.contributor.authorSlatyer, Tracy Robyn
dc.contributor.authorStewart, Iain W
dc.date.accessioned2018-03-27T18:25:35Z
dc.date.available2018-03-27T18:25:35Z
dc.date.issued2018-03
dc.date.submitted2018-01
dc.identifier.issn1029-8479
dc.identifier.issn1126-6708
dc.identifier.urihttp://hdl.handle.net/1721.1/114413
dc.description.abstractWe construct an effective field theory (EFT) description of the hard photon spectrum for heavy WIMP annihilation. This facilitates precision predictions relevant for line searches, and allows the incorporation of non-trivial energy resolution effects. Our framework combines techniques from non-relativistic EFTs and soft-collinear effective theory (SCET), as well as its multi-scale extensions that have been recently introduced for studying jet substructure. We find a number of interesting features, including the simultaneous presence of SCETI and SCETII modes, as well as collinear-soft modes at the electroweak scale. We derive a factorization formula that enables both the resummation of the leading large Sudakov double logarithms that appear in the perturbative spectrum, and the inclusion of Sommerfeld enhancement effects. Consistency of this factorization is demonstrated to leading logarithmic order through explicit calculation. Our final result contains both the exclusive and the inclusive limits, thereby providing a unifying description of these two previously-considered approximations. We estimate the impact on experimental sensitivity, focusing for concreteness on an SU(2)W triplet fermion dark matter — the pure wino — where the strongest constraints are due to a search for gamma-ray lines from the Galactic Center. We find numerically significant corrections compared to previous results, thereby highlighting the importance of accounting for the photon spectrum when interpreting data from current and future indirect detection experiments. Keywords: jets; phenomenological modelsen_US
dc.publisherSpringer International Publishing AGen_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/JHEP03(2018)117en_US
dc.rightsCreative Commons Attributionen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceSpringer Berlin Heidelbergen_US
dc.titleResummed photon spectra for WIMP annihilationen_US
dc.typeArticleen_US
dc.identifier.citationBaumgart, Matthew et al. "Resummed photon spectra for WIMP annihilation." Journal of High Energy Physics 2018 (March 2018): 117 © 2018 The Author(s)en_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Theoretical Physicsen_US
dc.contributor.mitauthorRodd, Nicholas Llewellyn
dc.contributor.mitauthorSlatyer, Tracy Robyn
dc.contributor.mitauthorStewart, Iain W
dc.relation.journalJournal of High Energy Physicsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2018-03-22T05:10:17Z
dc.language.rfc3066en
dc.rights.holderThe Author(s)
dspace.orderedauthorsBaumgart, Matthew; Cohen, Timothy; Moult, Ian; Rodd, Nicholas L.; Slatyer, Tracy R.; Solon, Mikhail P.; Stewart, Iain W.; Vaidya, Varunen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0003-3472-7606
dc.identifier.orcidhttps://orcid.org/0000-0001-9699-9047
dc.identifier.orcidhttps://orcid.org/0000-0003-0248-0979
mit.licensePUBLISHER_CCen_US


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