منابع مشابه
An extended technicolor model.
An extended technicolor model is constructed. Quark and lepton masses, spontaneous CP violation, and precision electroweak measurements are discussed. Dynamical symmetry breaking is analyzed using the concept of the big MAC.
متن کاملAnatomy of Top - Mode Extended Technicolor Model ∗
We analyze a straightforward extension of the extended technicolor (ETC) incorporating the top quark condensate via the flavor-universal coloron type topcolor SU(3)1 × SU(3)2 as well as the walking/conformal technicolor. Having quarks and techniquarks assigned to a single SU(3)1, the model has the same ETC structure as that of Appelquist et al. which was shown to have successive ETC breakings t...
متن کاملTechnicolor 2000 1. the Motivation for Technicolor and Extended Technicolor
This review is based on lectures on technicolor and extended technicolor presented at the Frascati Spring School in May 2000. I summarize the motivation and structure of this theory of dynamical breaking of electroweak and flavor symmetries. Particular attention is paid to the main phenomenological obstacles to this picture— flavor–changing neutral currents, precision electroweak measurements, ...
متن کاملLimits on noncommuting extended technicolor.
Using precision electroweak data, we put limits on non-commuting extended technicolor models. We conclude that these models are viable only if the ETCinteractions are strong. Interestingly, these models predict a pattern of deviations from the standard model which can fit the data significantly better than the standard model does, even after taking into account the extra parameters involved. ∗e...
متن کاملExtended technicolor model with QCD-like symmetry breaking.
We present a one-doublet extended technicolor model, with all fermions in fundamental representations. The bare lagrangian has no explicit mass terms but generates masses through gauge symmetry breaking by purely QCD-like dynamics. The model generates three families of quarks and leptons and can accommodate the observed third family mass spectrum (including a large top mass and light neutrinos)...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1994
ISSN: 0556-2821
DOI: 10.1103/physrevd.50.2116