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

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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

Title: Search for Gluino-Mediated Bottom Squark Production in pp̅ Collisions at √s=1.96  TeV
Alternative title: Search for Gluino-Mediated Sbottom Production in p-pbar Collisions at sqrt(s)=1.96 TeV
Author: Aaltonen, Timo; Mehtala, P.; Orava, R.; Maki, T.; Saarikko, H.; Osterberg, K.; CDF Collaboration
Contributor organization: Helsinki Institute of Physics
Particle Physics and Astrophysics
Date: 2009
Language: eng
Number of pages: 8
Belongs to series: Physical Review Letters
ISSN: 0031-9007
DOI: https://doi.org/10.1103/PhysRevLett.102.221801
URI: http://hdl.handle.net/10138/24403
Abstract: 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.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 √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 bottom squarks. This result constrains the gluino-pair-production cross section to be less than 40 fb at 95% credibility level for a gluino mass of 350  GeV/c2.
Description: Final version publish in PRL
Subject: 114 Physical sciences
hep-ex
Peer reviewed: Yes
Usage restriction: restrictedAccess


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