Published August 1995 | Version v1
Report Open

Observation of the top quark

Creators

  • 1. Univ. of Michigan, Ann Arbor, MI (United States)

Description

Top quark production is observed in bar pp collisions at √s = 1.8 TeV at the Fermilab Tevatron. The Collider Detector at Fermilab (CDF) and D OE observe signals consistent with t bar t to WWb bar b, but inconsistent with the background prediction by 4.8σ (CDF), 4.6a (D OE). 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±8(stat.)±10(sys.) GeV/c2 (CDF), 199-21+19(stat.)±22(sys.) GeV/c2 (D OE), and the t bar t production cross section to be 6.8-2.4+3.6pb (CDF), 6.4±2.2 pb (D OE)

Availability note (English)

MF available from INIS under the Report Number; Also available from OSTI as DE96001841; NTIS; US Govt. Printing Office Dep.

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Additional details

Publishing Information

Imprint Pagination
25 p.
Report number
FNAL/C--95/276-E

Conference

Title
15. international conference on physics in collision.
Dates
8-10 Jun 1995.
Place
Krakow (Poland).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
27030147
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
DETECTION; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; JET MODEL; LEPTONS; MASS SPECTRA; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PROTON-ANTIPROTON INTERACTIONS; QUARKS; REST MASS; TOP PARTICLES
Descriptors DEC
ACCELERATORS; BARYON-BARYON INTERACTIONS; CYCLIC ACCELERATORS; ELEMENTARY PARTICLES; FERMIONS; HADRON-HADRON INTERACTIONS; INTERACTIONS; MASS; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; NUCLEON-ANTINUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; POSTULATED PARTICLES; RADIATION DETECTORS; SPECTRA; SYNCHROTRONS

Optional Information

Contract/Grant/Project number
Contract AC02-76CH03000
Funding organization
USDOE, Washington, DC (United States).
Secondary number(s)
CONF-9506133--2.