Measurement of the top quark pair production cross section in pp collisions at root s=7 TeV in dilepton final states with ATLAS

UNSPECIFIED (2012) Measurement of the top quark pair production cross section in pp collisions at root s=7 TeV in dilepton final states with ATLAS. Physics Letters B, 707 (5). pp. 459-477. ISSN 0370-2693

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Abstract

A measurement of the production cross section of top quark pairs (t (t) over bar) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the Large Hadron Collider is reported. Candidate events are selected in the dilepton topology with large missing transverse energy and at least two jets. Using a data sample corresponding to an integrated luminosity of 35 pb(-1), a t (t) over bar production cross section sigma(t (t) over bar) = 177 +/- 20(stat.) +/- 14(syst.) +/- 7(lum.) pb is measured for an assumed top quark mass of m(t) = 172.5 GeV. A second measurement requiring at least one jet identified as coming from a b quark yields a comparable result, demonstrating that the dilepton final states are consistent with being accompanied by b-quark jets. These measurements are in good agreement with Standard Model predictions

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Additional Information:
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.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
?? top physicsheavy quark productiontotal cross sectionnuclear and high energy physics ??
ID Code:
68229
Deposited By:
Deposited On:
04 Jan 2014 00:04
Refereed?:
Yes
Published?:
Published
Last Modified:
27 Mar 2024 00:47