Augury of darkness: the low-mass dark Z ' portal

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dc.citation.issue4
dc.contributor.authorAlves, Alexandre [UNIFESP]
dc.contributor.authorArcadi, Giorgio
dc.contributor.authorMambrini, Yann
dc.contributor.authorProfumo, Stefano
dc.contributor.authorQueiroz, Farinaldo S.
dc.coverageNew York
dc.date.accessioned2020-07-17T14:02:15Z
dc.date.available2020-07-17T14:02:15Z
dc.date.issued2017
dc.description.abstractDirac fermion dark matter models with heavy Z ' mediators are subject to stringent constraints from spin-independent direct searches and from LHC bounds, cornering them to live near the Z ' resonance. Such constraints can be relaxed, however, by turning off the vector coupling to Standard Model fermions, thus weakening direct detection bounds, or by resorting to light Z ' masses, below the Z pole, to escape heavy resonance searches at the LHC. In this work we investigate both cases, as well as the applicability of our findings to Majorana dark matter. We derive collider bounds for light Z ' gauge bosons using the CLS method, spin-dependent scattering limits, as well as the spin-independent scattering rate arising from the evolution of couplings between the energy scale of the mediator mass and the nuclear energy scale, and indirect detection limits. We show that such scenarios are still rather constrained by data, and that near resonance they could accommodate the gamma-ray GeV excess in the Galactic center.en
dc.description.affiliationUniv Fed Sao Paulo, Dept Fis, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationMax Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany
dc.description.affiliationUniv Paris Saclay 11, CNRS UMR 8627, Lab Phys Theor, F-91405 Orsay, France
dc.description.affiliationUniv Calif Santa Cruz, Dept Phys, 1156 High St, Santa Cruz, CA 95060 USA
dc.description.affiliationSanta Cruz Inst Particle Phys, 1156 High St, Santa Cruz, CA 95060 USA
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Fis, BR-09972270 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCNPq
dc.description.sponsorshipFAPESP
dc.description.sponsorshipU.S. Department of Energy
dc.description.sponsorshipERC
dc.description.sponsorshipResearch Executive Agency (REA) of the European Union
dc.description.sponsorshipEuropean Union
dc.description.sponsorshipIDCNPq: 307098/ 2014-1
dc.description.sponsorshipIDFAPESP: 2013/22079-8
dc.description.sponsorshipIDU.S. Department of Energy: DE-SC0010107
dc.description.sponsorshipIDResearch Executive Agency (REA) of the European Union: PITN-GA2012-316704
dc.description.sponsorshipIDEuropean Union: 674896
dc.format.extent-
dc.identifierhttp://dx.doi.org/10.1007/JHEP04(2017)164
dc.identifier.citationJournal Of High Energy Physics. New York, v. , n. 4, p. -, 2017.
dc.identifier.doi10.1007/JHEP04(2017)164
dc.identifier.fileWOS000401067200003.pdf
dc.identifier.issn1029-8479
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/54705
dc.identifier.wosWOS:000401067200003
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal Of High Energy Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCosmology of Theories beyond the SMen
dc.subjectBeyond Standard Modelen
dc.titleAugury of darkness: the low-mass dark Z ' portalen
dc.typeinfo:eu-repo/semantics/article
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