Anomalous Lepton Events and SU(2)L xU(1) Gauge Model with Off-Diagonal Neutral Currents
نویسندگان
چکیده
منابع مشابه
Anomalous U(1) Gauge Symmetry and Lepton Flavor Violation
Last few years, many people have studied the possibilities that the anomalous U(1) gauge symmetry is a trigger of SUSY breaking and/or an origin of the fermion mass hierarchy. Though it is interesting that the anomalous U(1) symmetry may explain the above two phenomena simultaneously, it causes a negative stop mass squared or a severe fine-tuning in order to avoid the FCNC problem. Recently it ...
متن کاملOn the Experimental Effects of the Off-shell Structure in Anomalous Neutral Triple Gauge Vertices
We discuss differences between on-shell and off-shell treatments in the search for anomalous neutral triple gauge couplings in ee collisions. We find that the usual onshell framework represents an optimal starting point, covering all scenarios in which a reasonable experimental sensitivity is expected. We show that off-shell effects lead to negligible deviations at the experimental level, provi...
متن کاملNeutrino Masses, Lepton Flavor Violations, and Flavor Changing Neutral Currents in Composite Little Higgs Model
Little higgs theories attribute light higgs to being one of a set of pseudo Nambu Goldstone bosons. This implies that the UV cutoff of the little higgs models should be around 10 TeV, and a new physics resides above the UV cutoff. The composite little higgs model, a candidate for UV physics of the littlest higgs model, incorporates supersymmetry into strong gauge dynamics. We find that this con...
متن کاملA Renormalizable Gauge Model of Lepton Interactions
S u m m a r y . I t is known that the spontaneous violation of a gauge symmet ry of the second kind results in the appearance not of Goldstone bosons but, rather, of massive gauge particles. The path-integral quant izat ion of these theories is discussed here in general terms. The pr imary consideration is tha t quantit ies of physical significance, such as matr ix elements of the scattering op...
متن کاملGauge Model of Quark-Lepton Nonuniversality
We propose a gauge model where quark-lepton universality is an accidental symmetry which is only approximate, in analogy to the well-accepted notion that strong isospin is accidental and approximate. This is a natural framework for explaining possible small deviations of quark-lepton universality which is applicable to the recently reported apparent nonunitarity of the quark mixing matrix. As a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1978
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.60.513