Title
Search for scalar bottom quarks from gluino decays in <tex>$\overline{p}p$</tex> collisions at <tex>$\sqrt{s}$</tex>=1.96 TeV Search for scalar bottom quarks from gluino decays in <tex>$\overline{p}p$</tex> collisions at <tex>$\sqrt{s}$</tex>=1.96 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
96(2006) :17 , p. 171802,1-171802,7
ISSN
0031-9007
ISI
000237321500009
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We searched for scalar bottom quarks in 156  pb-1 of p&#773; p collisions at √s=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.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/18eba6/2e88ac23.pdf
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