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

Abstract We 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 GAMBIT. We perform a global analysis of effective field theory (EFT) operators describing the interactions between a gauge-singlet Dirac fermio...

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Autores principales:	Peter Athron, Neal Avis Kozar, Csaba Balázs, Ankit Beniwal, Sanjay Bloor, Torsten Bringmann, Joachim Brod, Christopher Chang, Jonathan M. Cornell, Ben Farmer, Andrew Fowlie, Tomás E. Gonzalo, Will Handley, Felix Kahlhoefer, Anders Kvellestad, Farvah Mahmoudi, Markus T. Prim, Are Raklev, Janina J. Renk, Andre Scaffidi, Pat Scott, Patrick Stöcker, Aaron C. Vincent, Martin White, Sebastian Wild, Jure Zupan, GAMBIT Collaboration
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/6741fa5d28a9432dbd0ade94c60bbb39
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spelling	oai:doaj.org-article:6741fa5d28a9432dbd0ade94c60bbb392021-11-14T12:13:55ZThermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories10.1140/epjc/s10052-021-09712-61434-60441434-6052https://doaj.org/article/6741fa5d28a9432dbd0ade94c60bbb392021-11-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09712-6https://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract We 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 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 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.Peter AthronNeal Avis KozarCsaba BalázsAnkit BeniwalSanjay BloorTorsten BringmannJoachim BrodChristopher ChangJonathan M. CornellBen FarmerAndrew FowlieTomás E. GonzaloWill HandleyFelix KahlhoeferAnders KvellestadFarvah MahmoudiMarkus T. PrimAre RaklevJanina J. RenkAndre ScaffidiPat ScottPatrick StöckerAaron C. VincentMartin WhiteSebastian WildJure ZupanGAMBIT CollaborationSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-33 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Peter Athron Neal Avis Kozar Csaba Balázs Ankit Beniwal Sanjay Bloor Torsten Bringmann Joachim Brod Christopher Chang Jonathan M. Cornell Ben Farmer Andrew Fowlie Tomás E. Gonzalo Will Handley Felix Kahlhoefer Anders Kvellestad Farvah Mahmoudi Markus T. Prim Are Raklev Janina J. Renk Andre Scaffidi Pat Scott Patrick Stöcker Aaron C. Vincent Martin White Sebastian Wild Jure Zupan GAMBIT Collaboration Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
description	Abstract We 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 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 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.
format	article
author	Peter Athron Neal Avis Kozar Csaba Balázs Ankit Beniwal Sanjay Bloor Torsten Bringmann Joachim Brod Christopher Chang Jonathan M. Cornell Ben Farmer Andrew Fowlie Tomás E. Gonzalo Will Handley Felix Kahlhoefer Anders Kvellestad Farvah Mahmoudi Markus T. Prim Are Raklev Janina J. Renk Andre Scaffidi Pat Scott Patrick Stöcker Aaron C. Vincent Martin White Sebastian Wild Jure Zupan GAMBIT Collaboration
author_facet	Peter Athron Neal Avis Kozar Csaba Balázs Ankit Beniwal Sanjay Bloor Torsten Bringmann Joachim Brod Christopher Chang Jonathan M. Cornell Ben Farmer Andrew Fowlie Tomás E. Gonzalo Will Handley Felix Kahlhoefer Anders Kvellestad Farvah Mahmoudi Markus T. Prim Are Raklev Janina J. Renk Andre Scaffidi Pat Scott Patrick Stöcker Aaron C. Vincent Martin White Sebastian Wild Jure Zupan GAMBIT Collaboration
author_sort	Peter Athron
title	Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
title_short	Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
title_full	Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
title_fullStr	Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
title_full_unstemmed	Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
title_sort	thermal wimps and the scale of new physics: global fits of dirac dark matter effective field theories
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/6741fa5d28a9432dbd0ade94c60bbb39
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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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