Title
Search for pair production of supersymmetric top quarks in dilepton events from <tex>$p\overline{p}$</tex> collisions at <tex>$\sqrt{s}$</tex>=1.96 TeV Search for pair production of supersymmetric top quarks in dilepton events from <tex>$p\overline{p}$</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
104(2010) :25 , p. 251801,1-251801,8
ISSN
0031-9007
ISI
000279174500001
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We present the results of a search for pair production of the supersymmetric partner of the top quark (the top squark t1) decaying to a b quark and a chargino χ1± with a subsequent χ1± decay into a neutralino χ10, lepton &#8467;, and neutrino ν. Using a data sample corresponding to 2.7  fb-1 of integrated luminosity of pp&#773; collisions at √s=1.96  TeV collected by the CDF II detector, we reconstruct the mass of top squark candidate events and fit the observed mass spectrum to a combination of standard model processes and t1t&#773; 1 signal. We find no evidence for t1t&#773; 1 production and set 95% C.L. limits on the masses of the top squark and the neutralino for several values of the chargino mass and the branching ratio B(χ1±→χ10&#8467;±ν).
Full text (open access)
https://repository.uantwerpen.be/docman/irua/418bdf/a99a0d50.pdf
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