Search for the supersymmetric partner of the top quark in pp̅ collisions at √s=1.96  TeV

Show full item record



Permalink

http://hdl.handle.net/10138/24234

Citation

Aaltonen , T , Brücken , E , Devoto , F , Mehtälä , P , Orava , R & CDF Collaboration 2010 , ' Search for the supersymmetric partner of the top quark in pp̅ collisions at √s=1.96  TeV ' , Physical Review D : Particles, Fields, Gravitation and Cosmology , vol. 82 , no. 9 , pp. 092001 . https://doi.org/10.1103/PhysRevD.82.092001

Title: Search for the supersymmetric partner of the top quark in pp̅ collisions at √s=1.96  TeV
Author: Aaltonen, Timo; Brücken, Erik; Devoto, Francesco; Mehtälä, Petteri; Orava, Risto; CDF Collaboration
Contributor organization: Department of Physics
Helsinki Institute of Physics
Date: 2010-11-02
Language: eng
Number of pages: 16
Belongs to series: Physical Review D : Particles, Fields, Gravitation and Cosmology
ISSN: 1550-7998
DOI: https://doi.org/10.1103/PhysRevD.82.092001
URI: http://hdl.handle.net/10138/24234
Abstract: We present a search for the lightest supersymmetric partner of the top quark in proton-antiproton collisions at a center-of-mass energy √s=1.96  TeV. This search was conducted within the framework of the R parity conserving minimal supersymmetric extension of the standard model, assuming the stop decays dominantly to a lepton, a sneutrino, and a bottom quark. We searched for events with two oppositely-charged leptons, at least one jet, and missing transverse energy in a data sample corresponding to an integrated luminosity of 1  fb-1 collected by the Collider Detector at Fermilab experiment. No significant evidence of a stop quark signal was found. Exclusion limits at 95% confidence level in the stop quark versus sneutrino mass plane are set. Stop quark masses up to 180  GeV/c2 are excluded for sneutrino masses around 45  GeV/c2, and sneutrino masses up to 116  GeV/c2 are excluded for stop quark masses around 150  GeV/c2.
Description: 17 pages, 11 figures. Published in Phys.Rev.D82:092001,2010.
Subject: 114 Physical sciences
hep-ex
Peer reviewed: Yes
Usage restriction: restrictedAccess


Files in this item

Total number of downloads: Loading...

Files Size Format View
1009.0266v1 832.3Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record