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https://hdl.handle.net/11147/10750
Title: | First Measurement of the Cross Section for Top-Quark Pair Production in Proton-Proton Collisions at Root S=7 Tev | Authors: | Karapınar, Güler | Keywords: | CMS LHC Physics Top quark Cross section |
Publisher: | Elsevier Ltd. | Abstract: | The first measurement of the cross section for top-quark pair production in pp collisions at the Large Hadron Collider at center-of-mass energy root s = 7 TeV has been performed using a data sample corresponding to an integrated luminosity of 3.1 +/- 0.3 pb(-1) recorded by the CMS detector. This result utilizes the final state with two isolated, highly energetic charged leptons, large missing transverse energy, and two or more jets. Backgrounds from Drell-Yan and non-W/Z boson production are estimated from data. Eleven events are observed in the data with 2.1 +/- 1.0 events expected from background. The measured cross section is 194 +/- 72(stat.) +/- 24(syst.) +/- 21(lumi.) pb, consistent with next-to-leading order predictions. (C) 2010 CERN. Published by Elsevier B.V. All rights reserved. | URI: | https://doi.org/10.1016/j.physletb.2010.11.058 https://hdl.handle.net/11147/10750 |
ISSN: | 0370-2693 |
Appears in Collections: | Rectorate / Rektörlük WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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