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Title: Observation of Hadronic {ital W} Decays in {ital t}{bar {ital t}} Events with the Collider Detector at Fermilab

Observation of Hadronic {ital W} Decays in {ital t}{bar {ital t}} Events with the Collider Detector at Fermilab We observe hadronic W decays in t{bar t}{r_arrow}W({r_arrow} {ell}{nu})+{ge}4 jet events using a 109 pb{sup {minus}1} data sample of p{ovr p} collisions at {radical}(s)=1.8 TeV collected with the Collider Detector at Fermilab. A peak in the dijet invariant mass distribution is obtained that is consistent with W decay and inconsistent with the background prediction by 3.3{sigma} . From this peak we measure the W mass to be 77.2{plus_minus}4.6(stat+syst) GeV/c{sup 2} . This result demonstrates the presence of a second W boson in t{bar t} candidates in the W({r_arrow}{ell}{nu})+{ge}4 jet channel. {copyright} {ital 1998} {ital The American Physical Society}
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Publication Date:
OSTI Identifier:OSTI ID: 656289
Resource Type:Journal Article
Resource Relation:Journal Name: Physical Review Letters; Journal Volume: 80; Journal Issue: 26; Other Information: PBD: Jun 1998
Country of Publication:United States
Language:English
Subject: 66 PHYSICS; PROTON-PROTON INTERACTIONS; QUARKS; W PLUS BOSONS; W MINUS BOSONS; TOPONIUM; WEAK HADRONIC DECAY; PROTON-ANTIPROTON INTERACTIONS; FERMILAB TEVATRON; MASS DISTRIBUTION; JETS; TEV RANGE