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Observation of Hadronic W decays in t{ovr t} events with the collider detector at Fermilab.

Journal Article · · Phys. Rev. Lett.

We observe hadronic W decays in t{ovr t}{yields}W({yields}{ell}V)+{>=}4 jet events using a 109 pb{sup -1} data sample of p{ovr p}{sup -1} data sample of p{ovr p} collisions at sqrt[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{+-}4.6(stat+syst) GeV/c{sup 2}. This result demonstrates the presence of a second W boson in t{ovr t} candidates in the W({yields}{ell}v)+{>=}4 jet channel.

Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
ER
DOE Contract Number:
AC02-06CH11357
OSTI ID:
942377
Report Number(s):
ANL-HEP-PR-98-111
Journal Information:
Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 26 ; Jun. 29, 1998 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
ENGLISH

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