Custodial bulk Randall-Sundrum model and B->K* l+ l'-

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dc.creatorChang, Sanghyeon
dc.creatorKim, C. S.
dc.creatorSong, Jeonghyeon
dc.date2007-12-03
dc.date2007-12-05
dc.date.accessioned2026-07-07T11:54:29Z
dc.date.available2026-07-07T11:54:29Z
dc.descriptionThe custodial Randall-Sundrum model based on SU(2)_L X SU(2)_R X U(1)_(B-L) generates new flavor-changing-neutral-current (FCNC) phenomena at tree level, mediated by Kaluza-Klein neutral gauge bosons. Based on two natural assumptions of universal 5D Yukawa couplings and no-cancellation in explaining the observed standard model fermion mixing matrices, we determine the bulk Dirac mass parameters. Phenomenological constraints from lepton-flavor-violations are also used to specify the model. From the comprehensive study of B->K* l+ l'-, we found that only the B->K*ee decay has sizable new physics effects. The zero value position of the forward-backward asymmetry in this model is also evaluated, with about 5% deviation from the SM result. Other effective observables are also suggested such as the ratio of two differential (or partially integrated) decay rates of B->K*ee and B->K*mu mu. For the first KK gauge boson mass of M_A^(1)=2-4 TeV, we can have about 10-20% deviation from the SM results.
dc.descriptionreferences added with minor changes
dc.identifierhttps://arxiv.org/abs/0712.0207
dc.identifierhttp://arxiv.org/abs/0712.0207
dc.identifierPhys.Rev.D77:075001,2008
dc.identifierdoi:10.1103/PhysRevD.77.075001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204919
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCustodial bulk Randall-Sundrum model and B->K* l+ l'-
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