TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysCore.6.1.014
TI  - Probing a leptophobic top-colour model with cross section measurements and precise signal and background predictions: A case study
PY  - 2023/03/17
UR  - https://www.scipost.org/SciPostPhysCore.6.1.014
JF  - SciPost Physics Core
JA  - SciPost Phys. Core
VL  - 6
IS  - 1
SP  - 014
A1  - Altakach, Mohammad Mahdi
AU  - Butterworth, Jonathan Mark
AU  - Ježo, Tomaš
AU  - Klasen, Michael
AU  - Schienbein, Ingo
AB  - 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 $t\bar{t}$ 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.
ER  -

@Article{10.21468/SciPostPhysCore.6.1.014,
	title={{Probing a leptophobic top-colour model with cross section measurements and precise signal and background predictions: A case study}},
	author={Mohammad Mahdi Altakach and Jonathan Mark Butterworth and Tomáš Ježo and Michael Klasen and Ingo Schienbein},
	journal={SciPost Phys. Core},
	volume={6},
	pages={014},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhysCore.6.1.014},
	url={https://scipost.org/10.21468/SciPostPhysCore.6.1.014},
}