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Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories

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cam.issuedOnline2021-11-11
dc.contributor.authorAthron, P
dc.contributor.authorKozar, NA
dc.contributor.authorBalázs, C
dc.contributor.authorBeniwal, A
dc.contributor.authorBloor, S
dc.contributor.authorBringmann, T
dc.contributor.authorBrod, J
dc.contributor.authorChang, C
dc.contributor.authorCornell, JM
dc.contributor.authorFarmer, B
dc.contributor.authorFowlie, A
dc.contributor.authorGonzalo, TE
dc.contributor.authorHandley, W
dc.contributor.authorKahlhoefer, F
dc.contributor.authorKvellestad, A
dc.contributor.authorMahmoudi, F
dc.contributor.authorPrim, MT
dc.contributor.authorRaklev, A
dc.contributor.authorRenk, JJ
dc.contributor.authorScaffidi, A
dc.contributor.authorScott, P
dc.contributor.authorStöcker, P
dc.contributor.authorVincent, AC
dc.contributor.authorWhite, M
dc.contributor.authorWild, S
dc.contributor.authorZupan, J
dc.contributor.orcidBeniwal, A [0000-0003-4849-0611]
dc.date.accessioned2022-01-05T16:33:19Z
dc.date.available2022-01-05T16:33:19Z
dc.date.issued2021
dc.date.submitted2021-06-23
dc.date.updated2022-01-05T16:33:19Z
dc.description.abstractWe assess the status of a wide class of WIMP dark matter (DM) models in light of the latest experimental results using the global fitting framework $\textsf{GAMBIT}$. We perform a global analysis of effective field theory (EFT) operators describing the interactions between a gauge-singlet Dirac fermion and the Standard Model quarks, the gluons and the photon. In this bottom-up approach, we simultaneously vary the coefficients of 14 such operators up to dimension 7, along with the DM mass, the scale of new physics and several nuisance parameters. Our likelihood functions include the latest data from $\mathit{Planck}$, direct and indirect detection experiments, and the LHC. For DM masses below 100 GeV, we find that it is impossible to satisfy all constraints simultaneously while maintaining EFT validity at LHC energies. For new physics scales around 1 TeV, our results are influenced by several small excesses in the LHC data and depend on the prescription that we adopt to ensure EFT validity. Furthermore, we find large regions of viable parameter space where the EFT is valid and the relic density can be reproduced, implying that WIMPs can still account for the DM of the universe while being consistent with the latest data.
dc.identifier.doi10.17863/CAM.79530
dc.identifier.eissn1434-6052
dc.identifier.issn1434-6044
dc.identifier.others10052-021-09712-6
dc.identifier.other9712
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332083
dc.languageen
dc.language.isoeng
dc.publisherSpringer Science and Business Media LLC
dc.publisher.urlhttp://dx.doi.org/10.1140/epjc/s10052-021-09712-6
dc.subjecthep-ph
dc.subjecthep-ph
dc.subjectastro-ph.CO
dc.titleThermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
dc.typeArticle
dcterms.dateAccepted2021-10-02
prism.issueIdentifier11
prism.publicationNameEuropean Physical Journal C
prism.volume81
pubs.funder-project-idAustralian Research Council (DP180102209)
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.versionVoR
rioxxterms.versionofrecord10.1140/epjc/s10052-021-09712-6

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