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Title: A measurement of the top quark mass with a matrix element method

Abstract

The authors present a measurement of the mass of the top quark. The event sample is selected from proton-antiproton collisions, at 1.96 TeV center-of-mass energy, observed with the CDF detector at Fermilab's Tevatron. They consider a 318 pb -1 dataset collected between March 2002 and August 2004. They select events that contain one energetic lepton, large missing transverse energy, exactly four energetic jets, and at least one displaced vertex b tag. The analysis uses leading-order t$$\bar{t}$$ and background matrix elements along with parameterized parton showering to construct event-by-event likelihoods as a function of top quark mass. From the 63 events observed with the 318 pb -1 dataset they extract a top quark mass of 172.0 ± 2.6(stat) ± 3.3(syst) GeV/c 2 from the joint likelihood. The mean expected statistical uncertainty is 3.2 GeV/c 2 for m $$\bar{t}$$ = 178 GTeV/c 2 and 3.1 GeV/c 2 for m $$\bar{t}$$ = 172.5 GeV/c 2. The systematic error is dominated by the uncertainty of the jet energy scale.

Authors:
 [1]
  1. Univ. of California, Berkeley, CA (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
897576
Report Number(s):
FERMILAB-THESIS-2006-31
TRN: US0701530
DOE Contract Number:
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; MATRIX ELEMENTS; T QUARKS; TRANSVERSE ENERGY; Experiment-HEP

Citation Formats

Gibson, Adam Paul. A measurement of the top quark mass with a matrix element method. United States: N. p., 2006. Web. doi:10.2172/897576.
Gibson, Adam Paul. A measurement of the top quark mass with a matrix element method. United States. doi:10.2172/897576.
Gibson, Adam Paul. Sun . "A measurement of the top quark mass with a matrix element method". United States. doi:10.2172/897576. https://www.osti.gov/servlets/purl/897576.
@article{osti_897576,
title = {A measurement of the top quark mass with a matrix element method},
author = {Gibson, Adam Paul},
abstractNote = {The authors present a measurement of the mass of the top quark. The event sample is selected from proton-antiproton collisions, at 1.96 TeV center-of-mass energy, observed with the CDF detector at Fermilab's Tevatron. They consider a 318 pb-1 dataset collected between March 2002 and August 2004. They select events that contain one energetic lepton, large missing transverse energy, exactly four energetic jets, and at least one displaced vertex b tag. The analysis uses leading-order t$\bar{t}$ and background matrix elements along with parameterized parton showering to construct event-by-event likelihoods as a function of top quark mass. From the 63 events observed with the 318 pb-1 dataset they extract a top quark mass of 172.0 ± 2.6(stat) ± 3.3(syst) GeV/c2 from the joint likelihood. The mean expected statistical uncertainty is 3.2 GeV/c2 for m $\bar{t}$ = 178 GTeV/c2 and 3.1 GeV/c2 for m $\bar{t}$ = 172.5 GeV/c2. The systematic error is dominated by the uncertainty of the jet energy scale.},
doi = {10.2172/897576},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}

Thesis/Dissertation:
Other availability
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