Speaker
Mr
Sujoy Poddar
(Jadavpur University)
Description
In a R-parity violating (RPV) model of neutrino mass with three bilinear couplings
mu_i and three trilinear couplings lambda'_{i33}, where i is the lepton index, we
find six generic scenarios each with a distinctive pattern of the trilinear couplings
consistent with the oscillation data. These patterns may be reflected in direct RPV
decays of the lighter top squark or in the RPV decays of the lightest superparticle,
assumed to be the lightest neutralino. Typical signal sizes at the Tevatron RUN II
and the LHC have been estimated and the results turn out to be encouraging. The
predictions of this model also depend on the parameters of the R-parity conserving
(RPC) sector. Measurement of these parameters kinematically at the LHC and/or ILC
would further sharpen the predictions. Finally the Branching Ratios (BRs) of the RPV
decays turn out to be rather suppressed in some regions of parameter space.
Measurement of the BRs of these rare decay modes in the clean environment of the ILC
would then be a challenging programme.
Author
Mr
Sujoy Poddar
(Jadavpur University)
Co-authors
Prof.
Amitava Datta
(Jadavpur University)
Dr
Siba Das
(Jadavpur University)
