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Title: First measurement of top quark pair production cross-section in muon plus hadronic tau final states

Abstract

This dissertation presents the first measurement of top quark pair production cross-section in events containing a muon and a tau lepton. The measurement was done with 1 fb-1 of data collected during April 2002 through February 2006 using the D0 detector at the Tevatron proton-antiproton collider, located at Fermi National Accelerator Laboratory (Fermilab), Batavia, Illinois. Events containing one isolated muon, one tau which decays hadronically, missing transverse energy, and two or more jets (at least one of which must be tagged as a heavy flavor jet) were selected. Twenty-nine candidate events were observed with an expected background of 9.16 events. The top quark pair production cross-section is measured to be σ(t$$\bar{t}$$) = 8.0$$+2.8\atop{-2.4}$$(stat)$$+1.8\atop{ -1.7}$$(syst) ± 0.5(lumi) pb. Assuming a top quark pair production cross-section of 6.77 pb for Monte Carlo signal top events without a real tau, the measured σ x BR is σ(t$$\bar{t}$$) x BR(t$$\bar{t}$$ → μ + τ + 2v + 2b) = 0.18$$+0.13\atop{-0.11}$$(stat)$$+0.09\atop{-0.09}$$(syst) ± 0.01(lumi) pb.

Authors:
 [1]
  1. Florida State Univ., Tallahassee, FL (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
921335
Report Number(s):
FERMILAB-THESIS-2007-41
TRN: US0801693
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; FERMILAB ACCELERATOR; FERMILAB TEVATRON; MUONS; PAIR PRODUCTION; T QUARKS; TAU PARTICLES; TRANSVERSE ENERGY; Experiment-HEP

Citation Formats

Sumowidagdo, Suharyo. First measurement of top quark pair production cross-section in muon plus hadronic tau final states. United States: N. p., 2007. Web. doi:10.2172/921335.
Sumowidagdo, Suharyo. First measurement of top quark pair production cross-section in muon plus hadronic tau final states. United States. https://doi.org/10.2172/921335
Sumowidagdo, Suharyo. 2007. "First measurement of top quark pair production cross-section in muon plus hadronic tau final states". United States. https://doi.org/10.2172/921335. https://www.osti.gov/servlets/purl/921335.
@article{osti_921335,
title = {First measurement of top quark pair production cross-section in muon plus hadronic tau final states},
author = {Sumowidagdo, Suharyo},
abstractNote = {This dissertation presents the first measurement of top quark pair production cross-section in events containing a muon and a tau lepton. The measurement was done with 1 fb-1 of data collected during April 2002 through February 2006 using the D0 detector at the Tevatron proton-antiproton collider, located at Fermi National Accelerator Laboratory (Fermilab), Batavia, Illinois. Events containing one isolated muon, one tau which decays hadronically, missing transverse energy, and two or more jets (at least one of which must be tagged as a heavy flavor jet) were selected. Twenty-nine candidate events were observed with an expected background of 9.16 events. The top quark pair production cross-section is measured to be σ(t$\bar{t}$) = 8.0$+2.8\atop{-2.4}$(stat)$+1.8\atop{ -1.7}$(syst) ± 0.5(lumi) pb. Assuming a top quark pair production cross-section of 6.77 pb for Monte Carlo signal top events without a real tau, the measured σ x BR is σ(t$\bar{t}$) x BR(t$\bar{t}$ → μ + τ + 2v + 2b) = 0.18$+0.13\atop{-0.11}$(stat)$+0.09\atop{-0.09}$(syst) ± 0.01(lumi) pb.},
doi = {10.2172/921335},
url = {https://www.osti.gov/biblio/921335}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Nov 01 00:00:00 EDT 2007},
month = {Thu Nov 01 00:00:00 EDT 2007}
}

Thesis/Dissertation:
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