Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10495/8629
Título : Probing neutrino mass with displaced vertices at the fermilab Tevatron
Autor : de Campos, Fernando
Éboli, Oscar J. P.
Magro, Mauricio Bernardino
Porod, William
Restrepo Quintero, Diego Alejandro
Valle, José W. F.
metadata.dc.subject.*: Neutrinos
Vértices desplazados
Fermilab Tevatron
Supersimetría
Fecha de publicación : 2005
Editorial : The American Physical Society
Citación : de Campos, F., Éboli, O. G. P., Magro, M. B., Porod, W., Restrepo Quintero, D. A., & Valle, J. W. F. (2005). Probing neutrino mass with displaced vertices at the Fermilab Tevatron. Physical Review D. 71(075001), 1-9. DOI:10.1103/PhysRevD.71.075001
Resumen : ABSTRACT: Supersymmetric extensions of the standard model exhibiting bilinear R-parity violation can generate naturally the observed neutrino mass spectrum as well as mixings. One interesting feature of these scenarios is that the lightest supersymmetric particle (LSP) is unstable, with several of its decay properties predicted in terms of neutrino mixing angles. A smoking gun of this model in colliders is the presence of displaced vertices due to LSP decays in large parts of the parameter space. In this work we focus on the simplest model of this type that comes from minimal supergravity with universal R-parity conserving soft breaking of supersymmetry augmented with bilinear R-parity breaking terms at the electroweak scale (RmSUGRA). We evaluate the potential of the Fermilab Tevatron to probe the RmSUGRA parameters through the analysis of events possessing two displaced vertices stemming from LSP decays. We show that requiring two displaced vertices in the events leads to a reach in m1/2 twice the one in the usual multilepton signals in a large fraction of the parameter space.
metadata.dc.identifier.eissn: 1550-7998
ISSN : 1550-2368
metadata.dc.identifier.doi: 10.1103/PhysRevD.71.075001
Aparece en las colecciones: Artículos de Revista en Ciencias Exactas y Naturales

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