Altakach, Mohammad Mahdi;
Butterworth, Jonathan Mark;
Jezo, Tomas;
Klasen, Michael;
Schienbein, Ingo;
(2023)
Probing a leptophobic top-colour model with cross section measurements and precise signal and background predictions: A case study.
SciPost Physics Core
, 6
(1)
, Article 014. 10.21468/SciPostPhysCore.6.1.014.
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Abstract
The sensitivity of particle-level fiducial cross section measurements from ATLAS, CMS and LHCb to a leptophobic top-colour model is studied. The model has previously been the subject of resonance searches. Here we compare it directly to state-of-the-art predictions for Standard Model top quark production and also take into account next-to-leading order predictions for the new physics signal. We make use of the Contur framework to evaluate the sensitivity of the current measurements, first under the default Contur assumption that the measurement and the SM exactly coincide, and then using the full SM theory calculation for t t at next-to-leading and next-to-next-to-leading order as the background model. We derive exclusion limits, discuss the differences between these approaches, and compare to the limits from resonance searches by ATLAS and CMS.
| Type: | Article |
|---|---|
| Title: | Probing a leptophobic top-colour model with cross section measurements and precise signal and background predictions: A case study |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.21468/SciPostPhysCore.6.1.014 |
| Publisher version: | http://dx.doi.org/10.21468/scipostphyscore.6.1.014 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, PROTON-PROTON COLLISIONS, PLUS JETS CHANNEL, PP COLLISIONS, ROOT-S=13 TEV, TRANSVERSE-MOMENTUM, EVENTS, DISTRIBUTIONS, TOPCOLOR, PAIRS |
| 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.ucl.ac.uk/id/eprint/10188269 |
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