Search for CP violation using t (t)over-bar events in the lepton plus jets channel in pp collisions at √s=13 TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Results are presented on a search for CP violation in the production and
decay of top quark-antiquark pairs in the lepton+jets channel. The search is based on
data from proton-proton collisions at √
s = 13 TeV, collected with the CMS detector,
corresponding to an integrated luminosity of 138 fb−1
. Possible CP violation effects are
evaluated by measuring asymmetries in observables constructed from linearly indepen dent four-momentum vectors of the final-state particles. The dimensionless chromoelectric
dipole moment of the top quark obtained from the observed asymmetries is measured to
be 0.04±0.10 (stat)±0.07(syst), and the asymmetries exhibit no evidence for CP-violating
effects, consistent with expectations from the standard model.
decay of top quark-antiquark pairs in the lepton+jets channel. The search is based on
data from proton-proton collisions at √
s = 13 TeV, collected with the CMS detector,
corresponding to an integrated luminosity of 138 fb−1
. Possible CP violation effects are
evaluated by measuring asymmetries in observables constructed from linearly indepen dent four-momentum vectors of the final-state particles. The dimensionless chromoelectric
dipole moment of the top quark obtained from the observed asymmetries is measured to
be 0.04±0.10 (stat)±0.07(syst), and the asymmetries exhibit no evidence for CP-violating
effects, consistent with expectations from the standard model.
Date Issued
2023-06-14
Date Acceptance
2022-08-29
Citation
The Journal of High Energy Physics, 2023, 2023 (6)
ISSN
1029-8479
Publisher
SpringerOpen
Journal / Book Title
The Journal of High Energy Physics
Volume
2023
Issue
6
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.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001035277600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
CP Violation
Hadron-Hadron Scattering
Physical Sciences
Physics
Physics, Particles & Fields
Science & Technology
Top Physics
Publication Status
Published
Article Number
81
Date Publish Online
2023-06-14