skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Evidence for top quark production in 1.8 TeV {bar p}p collisions

Abstract

This report is a summary of the evidence for top quark production in {bar p}p collisions at a center of mass energy of 1.8 TeV which was obtained by the CDF Collaboration earlier this year. The data analyzed corresponds to an integrated luminosity of 19.3 pb{sup {minus}1}, recorded with the CDF Detector at the Fermilab Tevatron Collider during 1992-1993. Three different search channels for t{bar t} production are used. A search for dilepton events finds 2 events, while two different methods of identifying b-quark jets in events with W+ {ge} 3 jets finds 6 and 7 events, respectively. The probability that the observed total yield is consistent with the estimated background of 5.96{sub {minus}0.44}{sup +0.49} is 0.26%. Though the statistics are too limited to firmly establish the existence of the top quark, a natural interpretation of the excess is that it is due to t{bar t} production. Under this assumption, constrained mass fitting of a subset of events yields a top quark mass of 174{+-}10{sub {minus}12}{sup +13} GeV/c{sup 2} and a t{bar t} production cross section of 13.9{sub {minus}4.8}{sup +6.1}pb.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab., Batavia, IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10103511
Report Number(s):
FNAL/C-94/339-E; CONF-940722-33
ON: DE95003496; IN: CDF/PUB/TOP/PUBLIC/2830; TRN: 95:000346
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Conference
Resource Relation:
Conference: 27. international conference on high energy physics,Glasgow (United Kingdom),21-27 Jul 1994; Other Information: PBD: Sep 1994
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; TOP PARTICLES; PARTICLE PRODUCTION; MASS; PROTON-ANTIPROTON INTERACTIONS; 662440; 662340; PROPERTIES OF OTHER PARTICLES INCLUDING HYPOTHETICAL PARTICLES; HADRON INTERACTIONS

Citation Formats

Jensen, H B. Evidence for top quark production in 1.8 TeV {bar p}p collisions. United States: N. p., 1994. Web.
Jensen, H B. Evidence for top quark production in 1.8 TeV {bar p}p collisions. United States.
Jensen, H B. Thu . "Evidence for top quark production in 1.8 TeV {bar p}p collisions". United States. https://www.osti.gov/servlets/purl/10103511.
@article{osti_10103511,
title = {Evidence for top quark production in 1.8 TeV {bar p}p collisions},
author = {Jensen, H B},
abstractNote = {This report is a summary of the evidence for top quark production in {bar p}p collisions at a center of mass energy of 1.8 TeV which was obtained by the CDF Collaboration earlier this year. The data analyzed corresponds to an integrated luminosity of 19.3 pb{sup {minus}1}, recorded with the CDF Detector at the Fermilab Tevatron Collider during 1992-1993. Three different search channels for t{bar t} production are used. A search for dilepton events finds 2 events, while two different methods of identifying b-quark jets in events with W+ {ge} 3 jets finds 6 and 7 events, respectively. The probability that the observed total yield is consistent with the estimated background of 5.96{sub {minus}0.44}{sup +0.49} is 0.26%. Though the statistics are too limited to firmly establish the existence of the top quark, a natural interpretation of the excess is that it is due to t{bar t} production. Under this assumption, constrained mass fitting of a subset of events yields a top quark mass of 174{+-}10{sub {minus}12}{sup +13} GeV/c{sup 2} and a t{bar t} production cross section of 13.9{sub {minus}4.8}{sup +6.1}pb.},
doi = {},
url = {https://www.osti.gov/biblio/10103511}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {9}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: