Aaboud, M;
Aad, G;
Abbott, B;
Abdinov, O;
Abeloos, B;
Abhayasinghe, DK;
Abidi, SH;
... Zwalinski, L; + view all
(2018)
Probing the Quantum Interference between Singly and Doubly Resonant Top-Quark Production in pp Collisions at √s = 13 TeV with the ATLAS Detector.
Physical Review Letters
, 121
(15)
, Article 152002. 10.1103/PhysRevLett.121.152002.
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Abstract
This Letter presents a normalized differential cross-section measurement in a fiducial phase-space region where interference effects between top-quark pair production and associated production of a single top quark with a W boson and a b -quark are significant. Events with exactly two leptons (ee, μμ, or eμ) and two b-36.1 fb⁻¹ of proton-proton collision data taken at √s = 13 TeV with the ATLAS detector at the LHC in 2015 and 2016. The results are compared with predictions from simulations using various strategies for the interference. The standard prescriptions for interference modeling are significantly different from each other but are within 2σ of the data. State-of-the-art predictions that naturally incorporate interference effects provide the best description of the data in the measured region of phase space most sensitive to these effects. These results provide an important constraint on interference models and will guide future model development and tuning.
| Type: | Article |
|---|---|
| Title: | Probing the Quantum Interference between Singly and Doubly Resonant Top-Quark Production in pp Collisions at √s = 13 TeV with the ATLAS Detector |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.121.152002 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.121.152002 |
| Language: | English |
| Additional information: | © 2018 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Particle interactions, Top quark, Particle data analysis, Particles & Fields |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10060158 |
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