Probing neutrino mass with multilepton production at the Tevatron in the simplest R-parity violation model

ABSTRACT: We analyse the production of multileptons in the simplest supergravity model with bilinear violation of R parity at the Fermilab Tevatron. Despite the small R-parity violating couplings needed to generate the neutrino masses indicated by current atmospheric neutrino data, the lightest supersymmetric particle is unstable and can decay inside the detector. This leads to a phenomenology quite distinct from that of the R-parity conserving scenario. We quantify by how much the supersymmetric multilepton signals differ from the R-parity conserving expectations, displaying our results in the m0 x m1/2 plane. We show that the presence of bilinear R-parity violating interactions enhances the supersymmetric multilepton signals over most of the parameter space, specially at moderate and large m0.

• Autores: Magro, Mauricio Bernardino; de Campos, Fernando; Éboli, Oscar J. P.; Porod, William; Restrepo Quintero, Diego Alejandro; Valle, José W. F.
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2003
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/8305
• Acceso en línea: http://hdl.handle.net/10495/8305
• Palabra clave: Modelo estándar; Multilepton; Neutrinos; Paridad R; Supersimetría
• Rights: openAccess
• License: Atribución 2.5 Colombia (CC BY 2.5 CO)