11–16 Dec 2008
Valencia, Spain
Europe/Madrid timezone

Lepton flavour violating stau decays versus seesaw parameters: correlations and expected number of events for both seesaw type-I and II

13 Dec 2008, 16:15
20m
CERN

CERN

Conference room B

Speaker

Dr Albert Villanova del Moral (CFTP, Instituto Superior Técnico)

Description

In minimal supergravity (mSugra), the neutrino sector is related to the slepton sector by means of the renormalization group equations. This opens a door to indirectly test the neutrino sector via measurements at LHC. Concretely, for the simplest seesaw type-I, we present the correlations between seesaw parameters and ratio of stau lepton flavour violating (LFV) branching ratios. We find some simple, extreme scenarios for the unknown right-handed parameters, where ratios of LFV branching ratios correlate with neutrino oscillation parameters. On the other hand, we scan the mSugra parameter space, for both seesaw type-I and II, to find regions where LFV stau decays can be maximized, while respecting low-energy experimental bounds. We estimate the expected number of events at LHC for a sample luminosity of ${\cal L} = 100 fb^{-1}$.

Author

Dr Albert Villanova del Moral (CFTP, Instituto Superior Técnico)

Presentation materials