Measurement of the $t \bar{t}$ Production Cross Section in $p \bar{p}$ Collisions at $\sqrt{s} = 1.96 TeV$

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15 May 2008

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 100 (19) , 192004
https://doi.org/10.1103/physrevlett.100.192004

Abstract

We measure the

t \bar{t}

production cross section in

p \bar{p}

collisions at

\sqrt{s} = 1.96 TeV

in the

lepton + jets

channel. Two complementary methods discriminate between signal and background:

b

tagging and a kinematic likelihood discriminant. Based on

0.9 {fb}^{- 1}

of data collected by the D0 detector at the Fermilab Tevatron Collider, we measure

σ_{t \bar{t}} = 7.62 \pm 0.85 pb

, assuming the current world average

m_{t} = 172.6 GeV

. We compare our cross section measurement with theory predictions to determine a value for the top-quark mass of

170 \pm 7 GeV

.

Keywords

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Version 1, 2008-03-19, ArXiv

This publication has 15 references indexed in Scilit:

Measurement of the $t \bar{t}$ production cross section in $p \bar{p}$ collisions at $\sqrt{s} = 1.96 TeV$ using kinematic characteristics of $lepton + jets$ events
Physical Review D, 2007
Measurement of the $t \bar{t}$ production cross section in $p \bar{p}$ collisions using dilepton events
Physical Review D, 2007
Measurement of the $t \bar{t}$ production cross section in $p \bar{p}$ collisions at $\sqrt{s} = 1.96 TeV$ using secondary vertex $b$ tagging
Physical Review D, 2006
Measurement of the $t \bar{t}$ Production Cross Section in $p \bar{p}$ Collisions at $\sqrt{s} = 1.96 TeV$
Physical Review Letters, 2006
Method for simulating electroweak top-quark production events in the NLO approximation: SingleTop event generator
Physics of Atomic Nuclei, 2006
The upgraded DØ detector
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2006
CompHEP 4.4—automatic computations from Lagrangians to events
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2004
The tbar-t cross-section at 1.8 and 1.96 TeV: a study of the systematics due to parton densities and scale dependence
Journal of High Energy Physics, 2004
Next-to-next-to-leading order soft-gluon corrections in top quark hadroproduction
Physical Review D, 2003
ALPGEN, a generator for hard multiparton processes in hadronic collisions
Journal of High Energy Physics, 2003