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Title: A precise measurement of the top quark mass

Abstract

We present a measurement of the mass of the top quark using data from proton-antiproton collisions recorded at the CDF experiment in Run II of the Fermilab Tevatron. Events are selected from the single lepton plus jets final state (t$$\bar{t}$$ → W +bW -$$\bar{b}$$ → ℓvbq$$\bar{q}$$'$$\bar{b}$$). The top quark mass is extracted using a calculation of the probability density for a t$$\bar{t}$$ final state to resemble a data event. This probability density is a function of both top quark mass and energy scale of calorimeter jets, constrained in situ with the hadronic W boson mass. Using 167 events observed in 955 pb -1 integrated luminosity, we achieve the single most precise measurement of top quark mass to date of 170.8 ± 2.2 (stat.) ± 1.4 (syst.) GeV/c 2, where the quoted statistical uncertainty includes uncertainty from the determination of the jet energy scale.

Authors:
 [1]
  1. Univ. of California, Los Angeles, CA (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
902873
Report Number(s):
FERMILAB-THESIS-2007-05
TRN: US200721%%376
DOE Contract Number:
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CALORIMETERS; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; INTERMEDIATE BOSONS; LEPTONS; LUMINOSITY; PROBABILITY; T QUARKS; Experiment-HEP

Citation Formats

Mohr, Brian N. A precise measurement of the top quark mass. United States: N. p., 2007. Web. doi:10.2172/902873.
Mohr, Brian N. A precise measurement of the top quark mass. United States. doi:10.2172/902873.
Mohr, Brian N. Sun . "A precise measurement of the top quark mass". United States. doi:10.2172/902873. https://www.osti.gov/servlets/purl/902873.
@article{osti_902873,
title = {A precise measurement of the top quark mass},
author = {Mohr, Brian N.},
abstractNote = {We present a measurement of the mass of the top quark using data from proton-antiproton collisions recorded at the CDF experiment in Run II of the Fermilab Tevatron. Events are selected from the single lepton plus jets final state (t$\bar{t}$ → W+bW-$\bar{b}$ → ℓvbq$\bar{q}$'$\bar{b}$). The top quark mass is extracted using a calculation of the probability density for a t$\bar{t}$ final state to resemble a data event. This probability density is a function of both top quark mass and energy scale of calorimeter jets, constrained in situ with the hadronic W boson mass. Using 167 events observed in 955 pb-1 integrated luminosity, we achieve the single most precise measurement of top quark mass to date of 170.8 ± 2.2 (stat.) ± 1.4 (syst.) GeV/c2, where the quoted statistical uncertainty includes uncertainty from the determination of the jet energy scale.},
doi = {10.2172/902873},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}

Thesis/Dissertation:
Other availability
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