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Supersymmetric U (1) Y′ ⊗ U (1) B - L extension of the Standard Model
(2017-06-10)
We build a supersymmetric version with SU(3)C ⊗ SU(2)L ⊗ U(1)Y′⊗ U(1)B-L gauge symmetry, where Y′ is a new charge and B and L are the usual baryonic and leptonic numbers. The model has three right-handed neutrinos with ...
Electroweak precision constraints on the Lee-Wick standard model
(INT SCHOOL ADVANCED STUDIES, 2008)
We perform an analysis of the electroweak precision observables in the Lee-Wick Standard Model. The most stringent restrictions come from the S and T parameters that receive important tree level and one loop contributions. ...
Custodial symmetry and extensions of the standard model
(American Physical Soc, 2006-12-01)
We show that the extension of the approximate custodial SU(2)(L+R) global symmetry to all the Yukawa interactions of the standard model Lagrangian implies the introduction of sterile right-handed neutrinos and the seesaw ...
Custodial symmetry and extensions of the standard model
(2006-12-01)
We show that the extension of the approximate custodial SU(2)L+R global symmetry to all the Yukawa interactions of the standard model Lagrangian implies the introduction of sterile right-handed neutrinos and the seesaw ...
Lepton flavor violating processes in the minimal 3-3-1 model with sterile neutrinos
(Iop Publishing Ltd, 2019-11-01)
We consider the minimal 3-3-1 model adding three right-handed neutrinos that transform as singlet under the SU(3)(L) circle times U(1)(X) symmetry. This model predicts flavor violating interactions in both quark and lepton ...
Secluded and putative flipped dark matter and Stueckelberg extensions of the standard model
(Iop Publishing Ltd, 2018-02-01)
We consider here three dark matter models with the gauge symmetry of the standard model plus an additional local U(1)(D) factor. One model is truly secluded and the other two models begin flipped, but end up secluded. All ...
Field Sources in a CPT-Even Lorentz-Violation Maxwell Electrodynamics
(2019-08-15)
This paper is dedicated to the study of interactions between external sources for the electromagnetic field in a model which exhibits Lorentz-symmetry breaking. We investigate such interactions in the CPT-even photon sector ...
Novel signatures for vector-like quarks
(Springer, 2017-06)
We consider supersymmetric extensions of the standard model with a vector-like doublet (T B) of quarks with charge 2/3 and −1/3, respectively. Compared to non-supersymmetric models, there is a variety of new decay modes ...
D-oscillons in the standard model extension
(Amer Physical Soc, 2015-06-17)
In this work we investigate the consequences of the Lorentz symmetry violation on extremely long-lived, time-dependent, and spatially localized field configurations, named oscillons. This is accomplished for two interacting ...