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Subject Keyword PHYSICS ♦ PROTON-ANTIPROTON INTERACTIONS ♦ PARTICLE PRODUCTION ♦ TEV RANGE 01-10 ♦ ANNIHILATION ♦ TOP PARTICLES ♦ TOPONIUM ♦ MONTE CARLO METHOD ♦ MASS ♦ LEPTONIC DECAY
Abstract Based on (44{endash}48 pb{sup {minus}1}) of lepton+jets data, we review DO/{close_quote}s initial analysis of the top quark mass. The result, {ital M}{sub top}=199{sup +19}{sub {minus}21} (stat.) {plus_minus}22 (syst.) GeV/{ital c}{sup 2}, is insensitive to background normalization. The errors are based on ISAJET top Monte Carlo, with its more severe gluon radiation, and allow for ISAJET/HERWIG differences. Good progress is being made in reducing the systematic error. We present a new study based on two-dimensional distributions of reconstructed top quark vs. dijet mass. With 98.7{percent} confidence we observe a peak in the top mass-dijet mass plane. The peak and its projections are similar both in shape and magnitude to expectations based on the decay sequence {ital t}{r_arrow}{ital bW}, {ital W}{r_arrow}{ital jj}. {copyright} {ital 1996 American Institute of Physics.}
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-02-01
Publisher Place United States
Volume Number 357
Issue Number 1
Technical Publication No. CONF-9505137-


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