Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/9429
Title: | Search for S-Channel Single Top-Quark Production in Proton-Proton Collisions at Root S=8 Tev With the Atlas Detector | Authors: | Aad, G. Abbott, B. Abdallah, J. Khalek, S. Abdel Abdinov, O. Aben, R. Adelman, J. |
Keywords: | ATLAS Top quark Electroweak production s-Channel Carlo Event Generator Parton Distributions Hadron |
Publisher: | Elsevier | Abstract: | This Letter presents a search at the LHC for s-channel single top-quark production in proton-proton collisions at a centre-of-mass energy of 8 TeV. The analyzed data set was recorded by the ATLAS detector and corresponds to an integrated luminosity of 20.3 fb(-1). Selected events contain one charged lepton, large missing transverse momentum and exactly two b-tagged jets. A multivariate event classifier based on boosted decision trees is developed to discriminate s-channel single top-quark events from the main background contributions. The signal extraction is based on a binned maximum-likelihood fit of the output classifier distribution. The analysis leads to an upper limit on the s-channel single topquark production cross-section of 14.6 pb at the 95% confidence level. The fit gives a cross-section of sigma(s) = 5.0 +/- 4.3 pb, consistent with the Standard Model expectation. (C) 2014 The Authors. Published by Elsevier B.V. | URI: | https://doi.org/10.1016/j.physletb.2014.11.042 https://hdl.handle.net/20.500.11851/9429 |
ISSN: | 0370-2693 1873-2445 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
Show full item record
CORE Recommender
SCOPUSTM
Citations
27
checked on Dec 28, 2024
WEB OF SCIENCETM
Citations
16
checked on Dec 28, 2024
Page view(s)
32
checked on Dec 30, 2024
Google ScholarTM
Check
Altmetric
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.