Search for Gluino-Mediated Bottom Squark Production in pp̅ Collisions at √s=1.96  TeV

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http://hdl.handle.net/10138/24403

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Aaltonen , T , Mehtala , P , Orava , R , Maki , T , Saarikko , H , Osterberg , K & CDF Collaboration 2009 , ' Search for Gluino-Mediated Bottom Squark Production in pp̅ Collisions at √s=1.96  TeV ' , Physical Review Letters , vol. 102 , no. 22 , pp. 221801 . https://doi.org/10.1103/PhysRevLett.102.221801

Titel: Search for Gluino-Mediated Bottom Squark Production in pp̅ Collisions at √s=1.96  TeV
Författare: Aaltonen, Timo; Mehtala, P.; Orava, R.; Maki, T.; Saarikko, H.; Osterberg, K.; CDF Collaboration
Medarbetare: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Datum: 2009
Språk: eng
Sidantal: 8
Tillhör serie: Physical Review Letters
ISSN: 0031-9007
Permanenta länken (URI): http://hdl.handle.net/10138/24403
Abstrakt: We report on a search for the supersymmetric partner of the bottom quark produced from gluino decays in data from 2.5 fb-1 of integrated luminosity collected by the Collider Detector at Fermilab at sqrt(s)=1.96 TeV. Candidate events are selected requiring two or more jets and large missing transverse energy. At least two of the jets are required to be tagged as originating from a b quark to enhance the sensitivity. The results are in good agreement with the prediction of the standard model processes, giving no evidence for gluino decay to sbottom quarks. This result constrains the gluino-pair-production cross section to be less than 40fb at 95% credibility level for a gluino mass of 350 GeV.
Subject: 114 Physical sciences
hep-ex
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