2012/08/31 by Ulrich Haisch, Felix Kahlhoefer, James Unwin · 1 citation
Computer Science · Physics and Astronomy · #Atlas (anatomy) #Computational Physics and Python Applications #Dark Matter and Cosmic Phenomena #Dark matter #Large Hadron Collider #Missing energy #Particle physics theoretical and experimental studies #Pseudoscalar #Scalar (mathematics) #Scattering #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep07(2013)125
published as JHEP 1307 (2013) 125 · 12 pages, 1 table, 3 figures, v2: extended discussion and improved relic density calculation - matches published version
openalex publication_date 2013/07/01 · arxiv created 2013/08/02 · arxiv updated 2013/08/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
If only tree-level processes are included in the analysis, LHC monojet searches give weak constraints on the dark matter-proton scattering cross section arising from the exchange of a new heavy scalar or pseudoscalar mediator with Yukawa-like couplings to quarks. In this letter we calculate the constraints on these interactions from the CMS 5.0/fb and ATLAS 4.7/fb searches for jets with missing energy including the effects of heavy-quark loops. We find that the inclusion of such contributions leads to a dramatic increase in the predicted cross section and therefore a significant improvement of the bounds from LHC searches.