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Title Observation of the top quark
Creator/Author Kim, S.B. [Univ. of Michigan, Ann Arbor, MI (United States)]
Publication Date1995 Aug 01
OSTI IdentifierOSTI ID: 120911; Legacy ID: DE96001841
Report Number(s)FNAL/C--95/276-E; CONF-9506133--2
DOE Contract NumberAC02-76CH03000
Other Number(s)Other: ON: DE96001841; TRN: TRN: 95:007917
Resource TypeConference
Resource RelationConference: 15. international conference on physics in collision, Krakow (Poland), 8-10 Jun 1995; Other Information: PBD: Aug 1995
Research OrgFermi National Accelerator Lab., Batavia, IL (United States)
Sponsoring OrgUSDOE, Washington, DC (United States)
Subject66 PHYSICS ;44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; TOP PARTICLES; PARTICLE PRODUCTION; REST MASS; DETECTION; PROTON-ANTIPROTON INTERACTIONS; FERMILAB TEVATRON; FERMILAB COLLIDER DETECTOR; QUARKS; MASS SPECTRA; PARTICLE IDENTIFICATION; LEPTONS; JET MODEL
Description/AbstractTop quark production is observed in {bar p}p collisions at {radical}s = 1.8 TeV at the Fermilab Tevatron. The Collider Detector at Fermilab (CDF) and D{O} observe signals consistent with t{bar t} to WWb{bar b}, but inconsistent with the background prediction by 4.8{sigma} (CDF), 4.6a (D{O}). Additional evidence for the top quark Is provided by a peak in the reconstructed mass distribution. The kinematic properties of the excess events are consistent with the top quark decay. They measure the top quark mass to be 176{plus_minus}8(stat.){plus_minus}10(sys.) GeV/c{sup 2} (CDF), 199{sub -21}{sup +19}(stat.){plus_minus}22(sys.) GeV/c{sup 2} (D{O}), and the t{bar t} production cross section to be 6.8{sub -2.4}{sup +3.6}pb (CDF), 6.4{plus_minus}2.2 pb (D{O}).
Country of PublicationUnited States
LanguageEnglish
FormatMedium: P; Size: 25 p.
Availability INIS; OSTI as DE96001841
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System Entry Date2008 May 12
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