5. Theoretical Physics (CSN4)

LSP neutrino decays into heavy standard model pairs

by Dr Diego ARISTIZABAL (Liege Univ.)

Aula Bruno Touschek (LNF)

Aula Bruno Touschek


Via Enrico Fermi, 40 00044 Frascati (Roma)
In bilinear R-parity violation (BRpV), in which the superpotential includes a bilinear term between the lepton doublet and the up-type Higgs superfields, a sneutrino LSP can decay into pairs of heavy standard model states: W's, Z's, tops or Higgs bosons. These finals states can dominate over the traditionally considered bottom pair final state, yielding unique and novel supersymmetric signals with each supersymmetric event possibly producing two pairs of these heavy standard model fields. In this talk, after a short review of BRpV models, I will discuss this possibility. In particular how from the observation of these final decay modes BRpV might be excluded as the sole generator of neutrino masses.