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arXiv · 0902.3820

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

A. Villanova del Moral
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Abstract

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 the 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 rates 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 the LHC for a sample luminosity of L = 100 fb^{-1}.

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A. Villanova del Moral. 2009-02-25. Lepton flavour violating stau decays versus seesaw parameters: correlations and expected number of events for both seesaw type-I and II. https://doi.org/10.1088/1742-6596/171/1/012074

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