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SUMMARY:Displaced vertices at the Tevatron from neutralino decays
DTSTART;VALUE=DATE-TIME:20050118T110000Z
DTEND;VALUE=DATE-TIME:20050118T120000Z
DTSTAMP;VALUE=DATE-TIME:20261113T113650Z
UID:indico-event-1403@indico.ific.uv.es
DESCRIPTION:Supersymmetric extensions of the standard model exhibiting bil
 inear $R$--parity violation can generate naturally the observed neutrino m
 ass spectrum as well as mixings. One interesting feature of these scenario
 s is that the lightest supersymmetric particle (LSP) is unstable\, with de
 cay properties predicted in terms of neutrino parameters. A smoking gun of
  this model in colliders is the presence of displaced vertices due to LSP 
 decays. In this work we focus on the simplest model of this type that come
 s from minimal supergravity with universal R--parity conserving soft break
 ing of supersymmetry (RmSUGRA). We evaluate the potentiality of the Fermil
 ab 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 $m_{1/2
 }$ twice the one in the usual multilepton signals in a large fraction of t
 he parameter space.\n\nhttps://indico.ific.uv.es/event/1403/
LOCATION:Edf. Institutos de Investigación Sala Seminarios IFIC
URL:https://indico.ific.uv.es/event/1403/
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