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Title: On the validity of the effective field theory for dark matter searches at the LHC part III: analysis for the t-channel

We extend our recent analysis of the limitations of the effective field theory approach to studying dark matter at the LHC, by investigating the case in which Dirac dark matter couples to standard model quarks via t-channel exchange of a heavy scalar mediator. We provide analytical results for the validity of the effective field theory description, for both √s = 8 TeV and 14 TeV. We make use of a MonteCarlo event generator to assess the validity of our analytical conclusions. We also point out the general trend that in the regions where the effective field theory is valid, the dark matter relic abundance is typically large.
Authors:
;  [1] ; ; ;  [2]
  1. SISSA and INFN, Sezione di Trieste, via Bonomea 265, I-34136 Trieste (Italy)
  2. Section de Physique, Université de Genève, 24 quai E. Ansermet, CH-1211 Geneva (Switzerland)
Publication Date:
OSTI Identifier:
22375885
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2014; Journal Issue: 09; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ABUNDANCE; CERN LHC; MONTE CARLO METHOD; NONLUMINOUS MATTER; QUARKS; SCALARS; STANDARD MODEL; T CHANNEL; TEV RANGE 10-100