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Dynamically induced spontaneous symmetry breaking in 3-3-1 models
(Elsevier B.V., 2005-08-11)
We show that in SU(3)(C) circle times SU(3)(L) circle times U(1)(N) (3-3-1) models embedded with a singlet scalar playing the role of the axion, after imposing scale invariance, the breaking of Peccei-Quinn symmetry occurs ...
Mu-tau reflection symmetry with a texture-zero
(2017-01-01)
The μτ-reflection symmetry is a simple symmetry capable of predicting all the unknown CP phases of the lepton sector and the atmospheric angle but too simple to predict the absolute neutrino mass scale or the mass ordering. ...
Infrared finite gluon propagator and the structure of chiral symmetry breaking
(1996-12-01)
We study the chiral symmetry breaking in QCD, using an effective potential for composite operators, with infrared finite gluon propagators that have been found by numerical calculation of the Schwinger-Dyson equations as ...
Naturally light invisible axion in models with large local discrete symmetries
(2003-01-01)
We show that by introducing appropriate local [Formula Presented] symmetries in electroweak models it is possible to implement an automatic Peccei-Quinn symmetry, at the same time keeping the axion protected against ...
Heavy-quark symmetries in the light of nonperturbative QCD approaches
(2011-12-01)
We critically review the validity of heavy-quark spin and flavor symmetries in heavy-light decay constants, form factors and effective couplings obtained within a nonperturbative framework, the ingredients of which are all ...
Heavy-quark symmetries in the light of nonperturbative QCD approaches
(2011-12-01)
We critically review the validity of heavy-quark spin and flavor symmetries in heavy-light decay constants, form factors and effective couplings obtained within a nonperturbative framework, the ingredients of which are all ...
Asymptotic U(1) charges at spatial infinity
(Springer Verlag, 2017)
Large gauge symmetries in Minkowski spacetime are often studied in two distinct regimes: either at asymptotic (past or future) times or at spatial infinity. By working in harmonic gauge, we provide a unified description ...