Publication
Title
Searches for direct pair production of supersymmetric top and supersymmetric bottom quarks in $p\overline{p}$ collisions at $\sqrt{s}$=1.96 TeV
Author
Institution/Organisation
CDF Collaboration
Abstract
 We search for direct pair production of supersymmetric top quarks and supersymmetric bottom quarks in proton-antiproton collisions at √s=1.96  TeV, using 295  pb-1 of data recorded by the Collider Detector at Fermilab (CDF II) experiment. The supersymmetric top (supersymmetric bottom) quarks are selected by reconstructing their decay into a charm (bottom) quark and a neutralino, which is assumed to be the lightest supersymmetric particle. The signature of such processes is two energetic heavy-flavor jets and missing transverse energy. The number of events that pass our selection for each search process is consistent with the expected standard model background. By comparing our results to the theoretical production cross sections of the supersymmetric top and supersymmetric bottom quarks in the minimal supersymmetric standard model, we exclude, at a 95% confidence level in the frame of that model, a supersymmetric top quark mass up to 132  GeV/c2 for a neutralino mass of 48  GeV/c2, and a supersymmetric bottom quark mass up to 193  GeV/c2 for a neutralino mass of 40  GeV/c2.
Language
English
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Publication
Lancaster, Pa : 2007
ISSN
0556-2821
Volume/pages
76:7(2007), p. 072010,1-072010,12
ISI
000250621200015
Full text (Publishers DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Publication type Subject Affiliation Publications with a UAntwerp address