Rare decaysBs→l+l−andB→Kl+l−in the topcolor-assisted technicolor model
نویسندگان
چکیده
منابع مشابه
Topcolor Assisted Technicolor
A condensate, tt, arising from O(TeV ) scale “topcolor,” in addition to technicolor (and ETC) may naturally explain the gauge hierarchy, the large top quark mass, and contains a rich system of testable consequences. A triplet of strongly coupled pseudo–Nambu–Goldstone bosons, “toppions,” near the top mass scale is a generic prediction of the models. A new class of technicolor schemes and associ...
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We examine the rare decays Bs → l+l− and B → Kl+l− in the framework of the topcolor-assisted technicolor (TC2) model. The contributions of the new particles predicted by this model to these rare decay processes are evaluated. We find that the values of their branching ratios are larger than the standard model predictions by one order of magnitude in wide range of the parameter space. The longit...
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We construct a prototype of topcolor–assisted technicolor in which, although both top and bottom quarks acquire some mass from extended technicolor, strong U(1) couplings of technifermions are isospin symmetric and all gauge anomalies vanish. There is a mechanism for mixing between the light and heavy generations and there need be no very light pseudo– Goldstone bosons.
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We consider the lepton-flavor violating(LFV) processes li → ljγ in the framework of topcolor assisted technicolor(TC2) models. We find that the new gauge boson Z ′ predicted by TC2 models can give significantly contributions to these processes via the flavor changing couplings. The present experimental bound on the LFV process μ → eγ gives severe constraints on the TC2 models. In the case that ...
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I present a model of topcolor-assisted technicolor that can have topcolor breaking of the desired pattern, hard masses for all quarks and leptons, mixing among the heavy and light generations, and explicit breaking of all technifermion chiral symmetries except electroweak SU(2)⊗U(1). These positive features depend on the outcome of vacuum alignment. The main flaw in this model is tau-lepton con...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2009
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.79.034008