Spontaneous R-parity violating type III seesaw

Abstract

We present a model where neutrino masses are generated by a combination of spontaneous R-parity violation and Type III seesaw. In addition to the usual MSSM particle content, our model consists of one extra triplet matter chiral superfield containing heavy SU(2) triplet fermions and its superpartners. R-parity is broken spontaneously when the sneutrinos associated with the one heavy neutrino as well as the three light neutrinos get vacuum expectation values, giving rise to the mixed $8\times 8$ neutralino-neutrino mass matrix. We show that our model can comfortably explain all the existing neutrino oscillation data. Due to the presence of the triplet fermion, we have a pair of additional heavy charged leptons which mix with the standard model charged leptons and the charginos. This gives rise to a $6\times 6$ chargino-charged lepton mass matrix, with 6 massive eigenstates. Finally we discuss about the different R-parity violating possible decay modes and the distinctive collider signatures which our model offers.

26 pages

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Cited by in corpus (5)

• Neutrinoless Double Beta Decay and Heavy Sterile Neutrinos
• Radiative contribution to neutrino masses and mixing in $\mu \nu$SSM
• Lepton Number Violation: Seesaw Models and Their Collider Tests
• Spontaneous R-Parity Violation, $A_4$ Flavor Symmetry and Tribimaximal Mixing
• Phenomenological Aspects of R-parity Violating Supersymmetry with A Vector-like Extra Generation