Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3583
Title: Search for pair production of heavy vectorlike quarks decaying into hadronic final states in pp collisions at s =13 TeV with the ATLAS detector
Authors: The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Collisions
jets
proton–proton collisions
Issue Date: Nov-2018
Publisher: American Physical Society
Source: ATLAS collaboration. (2018). Search for pair production of heavy vectorlike quarks decaying into hadronic final states in p p collisions at s= 13 TeV with the ATLAS detector. Physical Review D, 98(9), 092005.
Abstract: A search is presented for the pair production of heavy vectorlike quarks, TT or BB, that decay into final states with jets and no reconstructed leptons. Jets in the final state are classified using a deep neural network as arising from hadronically decaying W/Z bosons, Higgs bosons, top quarks, or background. The analysis uses data from the ATLAS experiment corresponding to 36.1 fb-1 of proton-proton collisions with a center-of-mass energy of s=13 TeV delivered by the Large Hadron Collider in 2015 and 2016. No significant deviation from the Standard Model expectation is observed. Results are interpreted assuming the vectorlike quarks decay into a Standard Model boson and a third-generation-quark, T?Wb,Ht,Zt or B?Wt,Hb,Zb, for a variety of branching ratios. At 95% confidence level, the observed (expected) lower limit on the vectorlike B-quark mass for a weak-isospin doublet (B, Y) is 950 (890) GeV, and the lower limits on the masses for the pure decays B?Hb and T?Ht, where these results are strongest, are 1010 (970) GeV and 1010 (1010) GeV, respectively. © 2018 CERN, for the ATLAS Collaboration. Published by the American Physical Society.
URI: https://hdl.handle.net/20.500.11851/3583
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.092005
ISSN: 24700010
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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