Supersymmetric $U(1)_{Y^{\prime}}\otimes U(1)_{B-L}$ extension of the standard model

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 identical B − L charges, and can accommodate all fermion masses at the tree level. In particular, the type I seesaw mechanism is implemented for the generation of the active neutrino masses. We obtain the mass spectra of all sectors and for the scalar one we also give the flat directions allowed by the model.

Note:

Version submitted for publication. 29 pages

12.60.Jy
12.60.Cn
Supersymmetric models
extensions of electroweak gauge sector
extensions of electroweak Higgs sector
new physics
supersymmetry
minimal supersymmetric standard model
symmetry: SU(3) x SU(2) x U(1) x U(1)
symmetry: gauge

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Supersymmetric U(1)Y′⊗U(1)B−LU(1)_{Y^{\prime}}\otimes U(1)_{B-L}U(1)Y′​⊗U(1)B−L​ extension of the standard model

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