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LHC and lepton flavour violation phenomenology of a left-right extension of the MSSM

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LHC and lepton flavour violation phenomenology of a left-right extension of the MSSM

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dc.contributor.author	Esteves, J. N.
dc.contributor.author	Romao, J. C.
dc.contributor.author	Hirsch, Martin
dc.contributor.author	Vicente Montesinos, Avelino
dc.contributor.author	Porod, Werner
dc.contributor.author	Staub, Florian
dc.date.accessioned	2014-08-25T11:06:58Z
dc.date.available	2014-08-25T11:06:58Z
dc.date.issued	2010
dc.identifier.citation	Esteves, J. N. Romao, J. C. Hirsch, Martin Vicente Montesinos, Avelino Porod, Werner Staub, Florian 2010 LHC and lepton flavour violation phenomenology of a left-right extension of the MSSM Journal of High Energy Physics 2010 12 077
dc.identifier.uri	http://hdl.handle.net/10550/37391
dc.description.abstract	We study the phenomenology of a supersymmetric left-right model, assuming minimal supergravity boundary conditions. Both left-right and (B-L) symmetries are broken at an energy scale close to, but significantly below the GUT scale. Neutrino data is explained via a seesaw mechanism. We calculate the RGEs for superpotential and soft parameters complete at 2-loop order. At low energies lepton flavour violation (LFV) and small, but potentially measurable mass splittings in the charged scalar lepton sector appear, due to the RGE running. Different from the supersymmetric ¿pure seesaw¿ models, both, LFV and slepton mass splittings, occur not only in the left-but also in the right slepton sector. Especially, ratios of LFV slepton decays, such as Br((tau) over bar (R) -> μchi(0)(1))/Br((tau) over bar (L) -> μchi(0)(1)) are sensitive to the ratio of (B-L) and left-right symmetry breaking scales. Also the model predicts a polarization asymmetry of the outgoing positrons in the decay mu(+) -> e(+)gamma, A similar to [0, 1], which differs from the pure seesaw ¿prediction¿ A = 1. Observation of any of these signals allows to distinguish this model from any of the three standard, pure (mSugra) seesaw setups.
dc.language.iso	eng
dc.relation.ispartof	Journal of High Energy Physics, 2010, vol. 2010, num. 12, p. 077
dc.subject	Física
dc.title	LHC and lepton flavour violation phenomenology of a left-right extension of the MSSM
dc.type	journal article	es_ES
dc.date.updated	2014-08-25T11:06:58Z
dc.identifier.doi	10.1007/JHEP12(2010)077
dc.identifier.idgrec	084492
dc.rights.accessRights	open access	es_ES