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


Autoria(s): Aaltonen, Timo; Mehtala, P.; Orava, R.; Maki, T.; Saarikko, H.; Osterberg, K.; CDF collaboration
Contribuinte(s)

University of Helsinki, Department of Physics

University of Helsinki, Department of Physics

University of Helsinki, Department of Physics

University of Helsinki, Helsinki Institute of Physics

University of Helsinki, Department of Physics

University of Helsinki, Department of Physics

Data(s)

2009

Resumo

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.

Formato

8

Identificador

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

0031-9007

Idioma(s)

eng

Publicador

American Institute of Physics

Relação

Physical Review Letters

Fonte

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 . , 10.1103/PhysRevLett.102.221801

Palavras-Chave #114 Physical sciences #hep-ex
Tipo

A1 Refereed journal article

info:eu-repo/semantics/article