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Title: Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at √s = 7 and 8 TeV with the ATLAS detector

The inclusive top quark pair (tt¯) production cross-section σ tt¯ has been measured in proton–proton collisions at √s = 7 TeV √s = 8 TeV with the ATLAS experiment at the LHC, using tt¯ events with an opposite-charge eμ pair in the final state. Thus, the measurement was performed with the 2011 7 TeV dataset corresponding to an integrated luminosity of 4.6 fb –1 and the 2012 8 TeV dataset of 20.3 fb –1. The numbers of events with exactly one and exactly two b-tagged jets were counted and used to simultaneously determine σ tt¯ and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimizing the associated systematic uncertainties.
Authors:
 [1]
  1. Aix-Marseille Univ. and CNRS/IN2P3, Marseille (France). et al.
Publication Date:
Grant/Contract Number:
AC02-06CH11357; AC02-05CH11231; SC00112704; AC03-76SF00515
Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 74; Journal Issue: 10; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Contributing Orgs:
ATLAS Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1225721
Alternate Identifier(s):
OSTI ID: 1225376; OSTI ID: 1407254

Aad, G. Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at √s = 7 and 8 TeV with the ATLAS detector. United States: N. p., Web. doi:10.1140/epjc/s10052-014-3109-7.
Aad, G. Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at √s = 7 and 8 TeV with the ATLAS detector. United States. doi:10.1140/epjc/s10052-014-3109-7.
Aad, G. 2014. "Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at √s = 7 and 8 TeV with the ATLAS detector". United States. doi:10.1140/epjc/s10052-014-3109-7. https://www.osti.gov/servlets/purl/1225721.
@article{osti_1225721,
title = {Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at √s = 7 and 8 TeV with the ATLAS detector},
author = {Aad, G.},
abstractNote = {The inclusive top quark pair (tt¯) production cross-section σtt¯ has been measured in proton–proton collisions at √s = 7 TeV √s = 8 TeV with the ATLAS experiment at the LHC, using tt¯ events with an opposite-charge eμ pair in the final state. Thus, the measurement was performed with the 2011 7 TeV dataset corresponding to an integrated luminosity of 4.6 fb–1 and the 2012 8 TeV dataset of 20.3 fb–1. The numbers of events with exactly one and exactly two b-tagged jets were counted and used to simultaneously determine σtt¯ and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimizing the associated systematic uncertainties.},
doi = {10.1140/epjc/s10052-014-3109-7},
journal = {European Physical Journal. C, Particles and Fields},
number = 10,
volume = 74,
place = {United States},
year = {2014},
month = {10}
}