Production of single top-quark final states at the LHC from supersymmetric FCNC interactions

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dc.creatorLopez-Val, David
dc.creatorGuasch, Jaume
dc.creatorSola, Joan
dc.date2008-01-16
dc.date.accessioned2026-07-07T11:55:17Z
dc.date.available2026-07-07T11:55:17Z
dc.descriptionWe discuss the production of single top-quark final states by direct supersymmetric flavor-changing interactions at the LHC. The total cross section pp(gg)->t\bar{c}+\bar{t}c is computed at the 1-loop order within the unconstrained MSSM. We prove that SUSY-QCD effects may furnish sizeable production rates amounting up to barely 10^5 t\bar{c}(c\bar{t}) events per 100 fb^{-1} of integrated luminosity, in full compliance with the stringent low-energy constraints from b->s gamma. Furthermore, we show that the cooperative SUSY-EW effects can be sizeable on their own, regardless of the SUSY-QCD contribution, with maximum production rates of the order of 10^3 events per 100 fb^{-1}. Owing to the fact that FCNC production of electrically neutral heavy-quark pairs is virtually absent within the SM, we conclude that the observation of such pp(gg)->t\bar{c}+\bar{t}c processes at the LHC could lead to evidence of new physics - of likely supersymmetric nature.
dc.descriptionLaTeX, 5 pages, 1 figure. To appear in the proceedings of the "8th International Symposium on Radiative Corrections (RADCOR 2007)", October 1-5 2007, Florence, Italy
dc.identifierhttps://arxiv.org/abs/0801.2469
dc.identifierhttp://arxiv.org/abs/0801.2469
dc.identifierPoSRADCOR2007:042,2007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205191
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProduction of single top-quark final states at the LHC from supersymmetric FCNC interactions
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