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Flavour violation at the LHC: type-I versus type-II seesaw in minimal supergravity

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Flavour violation at the LHC: type-I versus type-II seesaw in minimal supergravity

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dc.contributor.author	Esteves, J. N.
dc.contributor.author	Hirsch, Martin
dc.contributor.author	Porod, Werner
dc.contributor.author	Romao, J. C.
dc.contributor.author	Furtado Valle, José Wagner
dc.contributor.author	Villanova del Moral, A.
dc.date.accessioned	2014-08-25T10:54:52Z
dc.date.available	2014-08-25T10:54:52Z
dc.date.issued	2009
dc.identifier.citation	Esteves, J. N. Hirsch, Martin Porod, Werner Romao, J. C. Furtado Valle, José Wagner Villanova del Moral, A. 2009 Flavour violation at the LHC: type-I versus type-II seesaw in minimal supergravity Journal of High Energy Physics 2009 5 003-1 003-22
dc.identifier.uri	http://hdl.handle.net/10550/37389
dc.description.abstract	We reconsider the role that the possible detection of lepton flavour violating (LFV) decays of supersymmetric particles at the Large Hadron Collider (LHC) can play in helping reconstruct the underlying neutrino mass generation mechanism within the simplest high-scale minimal supergravity (mSUGRA) seesaw schemes. We study in detail the LFV scalar tau decays at the LHC, assuming that the observed neutrino masses arise either through the pure type-I or the simpler type-II seesaw mechanism. We perform a scan over the mSUGRA parameter space in order to identify regions where lepton flavour violating decays of chi(0)(2) can be maximized, while respecting current low-energy constraints, such as those coming from the bounds on Br(mu -> e gamma). We estimate the cross section for chi(0)(2) -> chi(0)(1) + tau + mu. Though insufficient for a full reconstruction of the seesaw, the search for LFV decays of supersymmetric states at the LHC brings complementary information to that coming from low energy neutrino oscillation experiments and LFV searches.
dc.language.iso	eng
dc.relation.ispartof	Journal of High Energy Physics, 2009, vol. 2009, num. 5, p. 003-1-003-22
dc.subject	Física
dc.title	Flavour violation at the LHC: type-I versus type-II seesaw in minimal supergravity
dc.type	journal article	es_ES
dc.date.updated	2014-08-25T10:54:52Z
dc.identifier.doi	10.1088/1126-6708/2009/05/003
dc.identifier.idgrec	059495
dc.rights.accessRights	open access	es_ES