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First Observation of the All-Hadronic Decay of {ital t}{ovr {ital t}} Pairs

Journal Article · · Physical Review Letters
OSTI ID:628702
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  1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
  3. Brandeis University, Waltham, Massachusetts 02264 (United States)
  4. University of California at Los Angeles, Los Angeles, California 90024 (United States)
  5. University of Chicago, Chicago, Illinois 60638 (United States)
  6. Duke University, Durham, North Carolina 28708 (United States)
  7. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  8. University of Florida, Gainesville, Florida 33611 (United States)
  9. Laboratori Nazionali de Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
  10. University of Geneva, CH-1211 Geneva 4 (Switzerland)
+ Show Author Affiliations
We present the first observation of the all hadronic decay of t{ovr t} pairs. The analysis is performed using 109 pb{sup {minus}1} of p{ovr p} collisions at {radical}(s)=1.8 TeV collected with the Collider Detector at Fermilab. We observe an excess of events with five or more jets, including one or two b jets, relative to background expectations. Based on this excess we evaluate the production cross section to be in agreement with previous results. We measure the top mass to be 186{plus_minus}10{plus_minus}12 GeV/c{sup 2 } . {copyright} {ital 1997} {ital The American Physical Society}
OSTI ID:
628702
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 11 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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Related Subjects

66 PHYSICS
CROSS SECTIONS
FERMILAB COLLIDER DETECTOR
JETS
MASS
PARTICLE PRODUCTION
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
STANDARD MODEL
TOPONIUM
WEAK HADRONIC DECAY