Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/9340
Title: | Search for Pair Production of Vector-Like Top Quarks in Events With One Lepton, Jets, and Missing Transverse Momentum in Root S=13 Tev Pp Collisions With the Atlas Detector | Authors: | Aaboud, M. Aad, G. Abbott, B. Abdinov, O. Abeloos, B. Abidi, S. H. Adersberger, M. |
Keywords: | Exotics Hadron-Hadron scattering (experiments) vector-like quarks Symmetry-Breaking Plus Plus |
Publisher: | Springer | Abstract: | The results of a search for vector-like top quarks using events with exactly one lepton, at least four jets, and large missing transverse momentum are reported. The search is optimised for pair production of vector-like top quarks in the Z(->nu nu) t + X decay channel. LHC pp collision data at a centre-of-mass energy of root S = 13TeV recorded by the ATLAS detector in 2015 and 2016 are used, corresponding to an integrated luminosity of 36.1 fb(-1). No significant excess over the Standard Model expectation is seen and upper limits on the production cross-section of a vector-like T quark pair as a function of the T quark mass are derived. The observed (expected) 95% CL lower limits on the T mass are 870 GeV (890 GeV) for the weak-isospin singlet model, 1.05 TeV (1.06 TeV) for the weak-isospin doublet model and 1.16 TeV (1.17 TeV) for the pure Zt decay mode. Limits are also set on the mass as a function of the decay branching ratios, excluding large parts of the parameter space for masses below 1 TeV. | URI: | https://doi.org/10.1007/JHEP08(2017)052 https://hdl.handle.net/20.500.11851/9340 |
ISSN: | 1029-8479 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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