Unitarity and Monojet Bounds on Models for DAMA, CoGeNT, and CRESST-II
By I. Shoemaker, L. Vecchi. 2011
190 citations recorded by the source corpus.
If dark matter interacts with quarks or gluons, the mediator of these interactions is either directly accessible at the LHC or is so heavy that its effects are encoded in contact operators. We find that the self-consistency of a contact operator description at the LHC implies bounds on the mediator scale stronger than those found from missing energy searches. This translates into spin-independent elastic scattering cross-sections at a level < 10^-41 cm^2, with direct implications for the DAMA, CoGeNT, and CRESST-II anomalies. We then carefully explore the potential of monojet searches in the light mediator limit, focusing on a Z' model with arbitrary couplings to quarks and dark matter. We find that the Tevatron data currently provides the most stringent bounds for dark matter and Z' masses below 100 GeV, and that these searches can constrain models for the DAMA, CoGeNT, and CRESST-II anomalies only if the mediator can decay to a pair of dark matter particles.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/18ae597befb0fd65ce922a42537f65dde059104a
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Citations in the corpus
- Beyond effective field theory for dark matter searches at the LHC (2013, background): “In the simplified model there is no need to worry about restricting the integration over phase space and it avoids the breakdown of the EFT associated with perturbative unitarity of the contact interactions [18, 19].”