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Search for pair production of vector-like top quarks in events with one lepton, jets, and missing transverse momentum in $$ \sqrt{s}=13 $$ TeV $pp$ collisions with the ATLAS detector
Journal Article·· Journal of High Energy Physics (Online)
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(→vv) t + X decay channel. LHC pp collision data at a centre-of-mass energy of √s=13 TeV 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.
Aaboud, M., et al. "Search for pair production of vector-like top quarks in events with one lepton, jets, and missing transverse momentum in $ \sqrt{s}=13 $ TeV $pp$ collisions with the ATLAS detector." Journal of High Energy Physics (Online), vol. 2017, no. 8, Aug. 2017. https://doi.org/10.1007/JHEP08(2017)052
Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., AbouZeid, O. S., Abraham, N. L., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., ... Zwalinski, L. (2017). Search for pair production of vector-like top quarks in events with one lepton, jets, and missing transverse momentum in $ \sqrt{s}=13 $ TeV $pp$ collisions with the ATLAS detector. Journal of High Energy Physics (Online), 2017(8). https://doi.org/10.1007/JHEP08(2017)052
Aaboud, M., Aad, G., Abbott, B., et al., "Search for pair production of vector-like top quarks in events with one lepton, jets, and missing transverse momentum in $ \sqrt{s}=13 $ TeV $pp$ collisions with the ATLAS detector," Journal of High Energy Physics (Online) 2017, no. 8 (2017), https://doi.org/10.1007/JHEP08(2017)052
@article{osti_1408460,
author = {Aaboud, M. and Aad, G. and Abbott, B. and Abdinov, O. and Abeloos, B. and Abidi, S. H. and AbouZeid, O. S. and Abraham, N. L. and Abramowicz, H. and Abreu, H. and others},
title = {Search for pair production of vector-like top quarks in events with one lepton, jets, and missing transverse momentum in $ \sqrt{s}=13 $ TeV $pp$ collisions with the ATLAS detector},
annote = {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(→vv) t + X decay channel. LHC pp collision data at a centre-of-mass energy of √s=13 TeV 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.},
doi = {10.1007/JHEP08(2017)052},
url = {https://www.osti.gov/biblio/1408460},
journal = {Journal of High Energy Physics (Online)},
issn = {ISSN 1029-8479},
number = {8},
volume = {2017},
place = {United States},
publisher = {Springer Berlin},
year = {2017},
month = {08}}
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 462, Issue 1-2https://doi.org/10.1016/S0168-9002(01)00089-4
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3https://doi.org/10.1016/S0168-9002(03)01368-8