https://doi.org/10.1140/epjc/s10052-021-09712-6
Regular Article - Theoretical Physics
Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
1
School of Physics and Astronomy, Monash University, 3800, Melbourne, VIC, Australia
2
Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, 210023, Nanjing, Jiangsu, China
3
Arthur B. McDonald Canadian Astroparticle Physics Research Institute, K7L 3N6, Kingston, ON, Canada
4
Department of Physics, Engineering Physics and Astronomy, Queen’s University, K7L 3N6, Kingston, ON, Canada
5
Center for Cosmology, Particle Physics and Phenomenology, Université catholique de Louvain, 1348, Louvain-la-Neuve, Belgium
6
Department of Physics, Blackett Laboratory, Imperial College London, Prince Consort Road, SW7 2AZ, London, UK
7
School of Mathematics and Physics, The University of Queensland, St. Lucia, 4072, Brisbane, QLD, Australia
8
Department of Physics, University of Oslo, 0316, Oslo, Norway
9
Department of Physics, University of Cincinnati, 45221, Cincinnati, OH, USA
10
Department of Physics, Weber State University, 1415 Edvalson St., Dept. 2508, 84408, Ogden, UT, USA
11
Bureau of Meteorology, 3001, Melbourne, VIC, Australia
12
Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University, 52056, Aachen, Germany
13
Kavli Institute for Cosmology, University of Cambridge, Madingley Road, CB3 0HA, Cambridge, UK
14
Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, CB3 0HE, Cambridge, UK
15
Univ Lyon, Univ Lyon 1, CNRS/IN2P3, Institut de Physique des 2 Infinis de Lyon, UMR 5822, 69622, Villeurbanne, France
16
Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland
17
Physikalisches Institut der Rheinischen Friedrich-Wilhelms-Universität Bonn, 53115, Bonn, Germany
18
Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 10691, Stockholm, Sweden
19
ARC Centre of Excellence for Dark Matter Particle Physics and CSSM, Department of Physics, University of Adelaide, 5005, Adelaide, SA, Australia
20
Istituto Nazionale di Fisica Nucleare, Sezione di Torino, via P. Giuria 1, 10125, Turin, Italy
21
Perimeter Institute for Theoretical Physics, N2L 2Y5, Waterloo, ON, Canada
22
DESY, Notkestraße 85, 22607, Hamburg, Germany
Received:
23
June
2021
Accepted:
2
October
2021
Published online:
11
November
2021
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.
© The Author(s) 2021
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