Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/9451
Title: Search for Single Production of a Vector-Like Quark Via a Heavy Gluon in the 4b Final State With the Atlas Detector in Pp Collisions at Root S=8 Tev
Authors: Aad, G.
Abbott, B.
Abdallah, J.
Abdinov, O.
Abeloos, B.
Aben, R.
Adomeit, S.
Keywords: Higgs
Plus
Publisher: Elsevier
Abstract: A search is performed for the process pp -> G* -> B-H(b) over bar/(B) over bar (H)b -> Hb (b) over bar -> b (b) over barb (b) over bar, predicted in composite Higgs scenarios, where G* is a heavy colour octet vector resonance and B-H a vector-like quark of charge -1/3. The data were obtained from pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.5 fb(-1), recorded by the ATLAS detector at the LHC. The largest background, multijet production, is estimated using a data-driven method. No significant excess of events with respect to Standard Model predictions is observed, and upper limits on the production cross section times branching ratio are set. Comparisons to the predictions from a specific benchmark model are made, resulting in lower mass limits in the two-dimensional mass plane of m(G*) vs. m(BH). (c) 2016 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license.
URI: https://doi.org/10.1016/j.physletb.2016.04.061
https://hdl.handle.net/20.500.11851/9451
ISSN: 0370-2693
1873-2445
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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