Correlations between lepton flavour violation at the LHC and type-I seesaw parameters in minimal supergravity

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dc.creatordel Moral, A. Villanova
dc.date2008-10-17
dc.date.accessioned2026-07-07T10:11:28Z
dc.date.available2026-07-07T10:11:28Z
dc.descriptionThe most general supersymmetric seesaw mechanism has too many parameters to be predictive and thus can not be excluded by any measurements of lepton flavour violating (LFV) processes. We focus on the simplest version of the type-I seesaw mechanism assuming minimal supergravity (mSugra) boundary conditions. We compute branching ratios for the LFV scalar tau decays, ${\tilde τ}_2 \to (e,μ) + χ^0_1$, as well as loop-induced LFV decays at low energy, such as $l_i \to l_j + γ$ and $l_i \to 3 l_j$, exploring their sensitivity to the unknown seesaw parameters. We find some simple, extreme scenarios for the unknown right-handed parameters, where ratios of LFV branching ratios correlate with neutrino oscillation parameters. If the overall mass scale of the left neutrinos and the value of the reactor angle were known, the study of LFV allows, in principle, to extract information about the so far unknown right-handed neutrino parameters.
dc.descriptionPoster at ICHEP08, Philadelphia, USA, July 2008. 4 pages, 16 figures
dc.identifierhttps://arxiv.org/abs/0810.3270
dc.identifierhttp://arxiv.org/abs/0810.3270
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/171874
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCorrelations between lepton flavour violation at the LHC and type-I seesaw parameters in minimal supergravity
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