Home > Research > Publications & Outputs > Measurement of the top quark pair production cr...

Electronic data

  • 1-s2.0-S0370269312003814-main

    Rights statement: This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.

    Final published version, 1.38 MB, PDF document

    Available under license: CC BY

Links

Text available via DOI:

View graph of relations

Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
  • The ATLAS collaboration
Close
<mark>Journal publication date</mark>15/05/2012
<mark>Journal</mark>Physics Letters B
Issue number3-4
Volume711
Number of pages20
Pages (from-to)244-263
Publication StatusPublished
<mark>Original language</mark>English

Abstract

A measurement of the production cross-section for top quark pairs (t (t) over bar) in pp collisions at root s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momentum and at least three jets. With a data sample of 35 pb(-1), two different multivariate methods, one of which uses b-quark jet identification while the other does not, use kinematic variables to obtain cross-section measurements of sigma(t (t) over bar) = 187 +/- 11(stat.)(-17)(+18)(syst.) +/- 6(lumi.) pb and sigma(t (t) over bar) = 173 +/- 17(stat.)(-16)(+18)(syst.) +/- 6(lumi.) pb respectively. The two measurements are in agreement with each other and with QCD calculations. The first measurement has a better a priori sensitivity and constitutes the main result of this Letter.

Bibliographic note

This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.