Probing bottom-associated production of a TeV scale scalar decaying to a top quark and dark matter at the LHC

Autor: Amandeep Kaur Kalsi, Teruki Kamon, Seulgi Kim, Jason S. H. Lee, Denis Rathjens, Youn Jung Roh, Adrian Thompson, Ian James Watson
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-13 (2024)
Druh dokumentu: article
ISSN: 1029-8479
DOI: 10.1007/JHEP09(2024)203
Popis: Abstract A minimal non-thermal dark matter model that can explain both the existence of dark matter and the baryon asymmetry in the universe is studied. It requires two color-triplet, iso-singlet scalars with O TeV $$ \mathcal{O}\left(\textrm{TeV}\right) $$ masses and a singlet Majorana fermion with a mass of O GeV $$ \mathcal{O}\left(\textrm{GeV}\right) $$ . The fermion becomes stable and can play the role of the dark matter candidate. We consider the fermion to interact with a top quark via the exchange of QCD-charged scalar fields coupled dominantly to third generation fermions. The signature of a single top quark production associated with a bottom quark and large missing transverse momentum opens up the possibility to search for this type of model at the LHC in a way complementary to existing monotop searches.
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