Neutrino masses and the scalar sector of a B-L extension of the standard model

Abstract

We consider an electroweak model based on the gauge symmetry SU(2)_L X U(1)_Y' X U(1)_B-L which has right-handed neutrinos with different exotic B-L quantum numbers. Because of this particular feature we are able to write Yukawa terms, and right-handed neutrino mass terms, with scalar fields that can develop vacuum expectation values belonging to different energy scales. We make a detailed study of the scalar and the Yukawa neutrino sectors to show that this model is compatible with the observed solar and atmospheric neutrino mass scales and the tribimaximal mixing matrix.We also show that there are dark matter candidates if a Z_2 symmetry is included.

23 pages, 2 tables, version to be published in Phys. Rev. D

References in corpus (7)

• Double Beta Decay, Majorana Neutrinos, and Neutrino Mass
• First Dark Matter Results from the XENON100 Experiment
• Deducing the nature of dark matter from direct and indirect detection experiments in the absence of collider signatures of new physics
• Gauging U(1) symmetries and the number of right-handed neutrinos
• The Private Higgs
• Combined CDF and D0 Upper Limits on Standard Model Higgs-Boson Production with up to 6.7 fb-1 of Data
• The flavor problem and discrete symmetries

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• Vacuum stability conditions of the economical 3-3-1 model from copositivity
• Interpreting dark matter solution for $B-L$ gauge symmetry
• Dark charge versus electric charge
• Asymmetric matter from $B-L$ symmetry breaking
• Phenomenology of a minimal extension of the standard model with a family-dependent gauge symmetry
• Flipped $U(1)$ extended Standard Model and Majorana dark matter
• Vacuum Stability and Radiative Symmetry Breaking of the Scale-Invariant Singlet Extension of Type II Seesaw Model
• Supersymmetric $U(1{)}_{Y^{\prime }}\otimes U(1{)}_{B-L}$ extension of the standard model
• The Supersymmetric $(B-L)$ model with three non-identical right-handed neutrinos
• Constraints on energy scales from dark matter decay in a gauged $B-L$ model
• The Masses of Gauge Bosons in $SU(3{)}_C\times SU(2{)}_L\times U(1{)}_{Y^{\prime }}\times U(1{)}_{B-L}$ gauge model