CERN Accelerating science

Article
Report number arXiv:1910.00117 ; TUM-HEP-1204-19
Title Confronting minimal freeze-in models with the LHC
Author(s) Bélanger, G. (Annecy, LAPTH) ; Desai, N. (U. Montpellier, L2C) ; Goudelis, A. (Paris, LPTHE ; ILP, Paris) ; Harz, J. (Munich, Tech. U.) ; Lessa, A. (ABC Federal U.) ; No, J.M. (Madrid, Autonoma U. ; Madrid, IFT) ; Pukhov, A. (SINP, Moscow) ; Sekmen, S. (Kyungpook Natl. U.) ; Sengupta, D. (Michigan State U. ; KIT, Karlsruhe, IKP) ; Zaldivar, B. (Annecy, LAPTH ; Madrid, Autonoma U. ; Madrid, IFT) ; Zurita, J. (KIT, Karlsruhe, TTP)
Publication 2019
Imprint 2019-09-30
Number of pages 6
In: 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 16 - 23 Mar 2019, pp.247-252
Subject category hep-ph ; Particle Physics - Phenomenology
Accelerator/Facility, Experiment CERN LHC
Abstract We present a class of dark matter models, in which the dark matter particle is a feebly interacting massive particle (FIMP) produced via the decay of an electrically charged and/or colored parent particle. Given the feeble interaction, dark matter is produced via the freeze-in mechanism and the parent particle is long-lived. The latter leads to interesting collider signatures. We study current LHC constrains on our models arising from searches for heavy charged particles, disappearing tracks, displaced leptons and displaced vertices. We demonstrate not only that collider searches can be a powerful probe of the freeze-in dark matter models under consideration, but that an observation can lead as well to interesting insights on the reheating temperature and thus on the validity of certain baryogenesis models.
Copyright/License preprint: (License: arXiv nonexclusive-distrib 1.0)
publication: © Published by ARISF, 2019



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