Search for Scalar Bottom Quarks from Gluino Decays inppCollisions ats=1.96TeV Academic Article uri icon

abstract

  • We searched for scalar bottom quarks in 156pb-1 of pp collisions at s=1.96TeV recorded by the Collider Detector at Fermilab II experiment at the Tevatron. Scalar bottom quarks can be produced from gluino decays in R-parity conserving models of supersymmetry when the mass of the gluino exceeds that of the scalar bottom quark. Then, a scalar bottom quark can decay into a bottom quark and a neutralino. To search for this scenario, we investigated events with large missing transverse energy and at least three jets, two or more of which were identified as containing a secondary vertex from the hadronization of b quarks. We found four candidate events, where 2.60.7 are expected from standard model processes, and placed 95% confidence level lower limits on gluino and scalar bottom quark masses of up to 280 and 240GeV/c2, respectively. 2006 The American Physical Society.

published proceedings

  • Physical Review Letters

author list (cited authors)

  • Abulencia, A., Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M. G., ... Zucchelli, S.

publication date

  • January 1, 2006 11:11 AM