Rare Decay of the Top t->c l lbar and Single Top Production at International Linear Collider

dc.creatorFrank, Mariana
dc.creatorTuran, Ismail
dc.date2006-09-06
dc.date2006-10-17
dc.date.accessioned2026-07-07T11:05:41Z
dc.date.available2026-07-07T11:05:41Z
dc.descriptionWe perform a complete and detailed analysis of the flavor changing neutral current rare top quark decays t-> cl+l- and t->c nu_i bar nu_i at one-loop level in the Standard Model, Two Higgs Doublet Models (I and II) and in MSSM. The branching ratios are very small in all models, O(10^-14), except for the case of the unconstrained MSSM, where they can reach O(10^-6) for e+e- and nu_i bar nu_i, and O(10^-5) for tau+ tau-. This branching ratio is comparable to the ones for t-> c V, cH. We also study the production rates of single top and the forward-backward asymmetry in e+e- -> t cbar and comment on the observability of such a signal at the International Linear Collider.
dc.description32 pages and 18 figures, minor clarification in the text, references added. To be published in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-ph/0609069
dc.identifierhttp://arxiv.org/abs/hep-ph/0609069
dc.identifierPhys.Rev.D74:073014,2006
dc.identifierdoi:10.1103/PhysRevD.74.073014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189280
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRare Decay of the Top t->c l lbar and Single Top Production at International Linear Collider
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