The process e+e−→t̄c in topcolor-assisted technicolor models
نویسندگان
چکیده
منابع مشابه
Topcolor Assisted Technicolor Models
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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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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Conventional technicolor models with light charged technipions (π T ) lead to an unacceptably large contribution to t → π T b decay rate. Topcolor-assisted technicolor models also have additional PGBs called top-pions (π t ) which may contribute to this decay. We study the potentially dangerous mixing of charged top-pion and technipions in toy models of ‘natural’ topcolor-assisted technicolor. ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2002
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(01)01459-9