Measuring Lepton Flavour Violation at LHC with Long-Lived Slepton in the Coannihilation Region

Simple item page
dc.creatorKaneko, Satoru
dc.creatorSato, Joe
dc.creatorShimomura, Takashi
dc.creatorVives, Oscar
dc.creatorYamanaka, Masato
dc.date2008-11-05
dc.date.accessioned2026-07-07T12:23:21Z
dc.date.available2026-07-07T12:23:21Z
dc.descriptionWhen the mass difference between the lightest slepton, the NLSP, and the lightest neutralino, the LSP, is smaller than the tau mass, the lifetime of the lightest slepton increases in many orders of magnitude with respect to typical lifetimes of other supersymmetric particles. These small mass differences are possible in the MSSM and, for instance, they correspond to the coannihilation region of the CMSSM for $M_{1/2} \gsim 700$ GeV. In a general gravity-mediated MSSM, where the lightest supersymmetric particle is the neutralino, the lifetime of the lightest slepton is inversely proportional to the square of the intergenerational mixing in the slepton mass matrices. Such a long-lived slepton would produce a distinctive signature at LHC and a measurement of its lifetime would be relatively simple. Therefore, the long-lived slepton scenario offers an excellent opportunity to study lepton flavour violation at ATLAS and CMS detectors in the LHC and an improvement of the leptonic mass insertion bounds by more than five orders of magnitude would be possible.
dc.description20 pages, 5 figures, 4 tables
dc.identifierhttps://arxiv.org/abs/0811.0703
dc.identifierhttp://arxiv.org/abs/0811.0703
dc.identifierPhys.Rev.D78:116013,2008
dc.identifierdoi:10.1103/PhysRevD.78.116013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213958
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMeasuring Lepton Flavour Violation at LHC with Long-Lived Slepton in the Coannihilation Region
dc.typetext

Files

Collections

arXiv