Search for CP violating top quark couplings in pp collisions at √s=13 TeV
File(s)JHEP07(2023)023.pdf (1.15 MB)
Published version
Author(s)
Type
Journal Article
Abstract
Results are presented from a search for CP violation in top quark pair production, using proton-proton collisions at a center-of-mass energy of 13 TeV. The data used
for this analysis consist of final states with two charged leptons collected by the CMS experiment, and correspond to an integrated luminosity of 35.9 fb−1. The search uses two
observables, O1 and O3, which are Lorentz scalars. The observable O1 is constructed from
the four-momenta of the charged leptons and the reconstructed top quarks, while O3 consists of the four-momenta of the charged leptons and the b quarks originating from the top
quarks. Asymmetries in these observables are sensitive to CP violation, and their measurement is used to determine the chromoelectric dipole moment of the top quark. The results
are consistent with the expectation from the standard model.
for this analysis consist of final states with two charged leptons collected by the CMS experiment, and correspond to an integrated luminosity of 35.9 fb−1. The search uses two
observables, O1 and O3, which are Lorentz scalars. The observable O1 is constructed from
the four-momenta of the charged leptons and the reconstructed top quarks, while O3 consists of the four-momenta of the charged leptons and the b quarks originating from the top
quarks. Asymmetries in these observables are sensitive to CP violation, and their measurement is used to determine the chromoelectric dipole moment of the top quark. The results
are consistent with the expectation from the standard model.
Date Issued
2023-07-04
Date Acceptance
2022-11-15
Citation
The Journal of High Energy Physics, 2023, 2023 (7)
ISSN
1029-8479
Publisher
SpringerOpen
Journal / Book Title
The Journal of High Energy Physics
Volume
2023
Issue
7
Copyright Statement
© 2023, The Author(s) Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Identifier
https://link.springer.com/article/10.1007/JHEP07(2023)023
Subjects
BARYON ASYMMETRY
CP Violation
Hadron-Hadron Scattering
PAIR
Physical Sciences
Physics
Physics, Particles & Fields
Science & Technology
Top Physics
Publication Status
Published
Article Number
23
Date Publish Online
2023-07-04