# Search for Scalar Bottom Quarks from Gluino Decays in $\bar{p}$p Collisions at $\sqrt{s}$=1.96 TeV

Abstract : We searched for scalar bottom quarks in 156 pb-1 of p collisions at =1.96 TeV 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 2.6±0.7 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 240 GeV/c2, respectively.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00076821
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Submitted on : Sunday, December 31, 2006 - 2:37:32 PM
Last modification on : Wednesday, January 26, 2022 - 3:41:59 AM

### Citation

A. Abulencia, D. Acosta, J. Adelman, T. Affolder, T. Akimoto, et al.. Search for Scalar Bottom Quarks from Gluino Decays in $\bar{p}$p Collisions at $\sqrt{s}$=1.96 TeV. Physical Review Letters, American Physical Society, 2006, 96, pp.171802. ⟨10.1103/PhysRevLett.96.171802⟩. ⟨in2p3-00076821⟩

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