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Samenvatting
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 13 TeV, collected with the CMS detector, corresponding to an integrated luminosity of 138 fb$^{-1}$. Possible CP violation effects are evaluated by measuring uncorrected asymmetries in observables constructed from linearly independent 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 $\pm$ 0.10 (stat) $\pm$ 0.07 (syst), and the asymmetries exhibit no evidence for CP-violating effects, consistent with expectations from the standard model.
Originele taal-2 | English |
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Artikelnummer | 81 |
Aantal pagina's | 47 |
Tijdschrift | JHEP |
Volume | 2023 |
Nummer van het tijdschrift | 6 |
DOI's | |
Status | Published - 14 jun 2023 |
Bibliografische nota
Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-20-005 (CMS Public Pages)Vingerafdruk
Duik in de onderzoeksthema's van 'Search for CP violation using $\mathrm{t\bar{t}}$ events in the lepton+jets channel in pp collisions at $\sqrt{s}$ = 13 TeV'. Samen vormen ze een unieke vingerafdruk.-
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iBOF/23/074: Ontsluiten van de charm-Higgs koppeling bij de LHC
D'Hondt, J., Lowette, S., Van Mechelen, P. & Dobur, D.
1/01/23 → 31/12/26
Project: Fundamenteel
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Datasets
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Search for CP violation using $\mathrm{t\bar{t}}$ events in the lepton+jets channel in pp collisions at $\sqrt{s}$ = 13 TeV
Bols, E. S. (Creator), D'Hondt, J. (Creator), De Moor, A. (Creator), Delcourt, M. (Creator), El Faham, H. (Creator), Lowette, S. (Creator), Moortgat, S. (Creator), Morton, A. (Creator), Müller, D. (Creator), Sahasransu, A. R. (Creator), Tavernier, S. (Creator), Van Doninck, W. (Creator), Vannerom, D. (Creator) & Stylianou, N. (Creator), HEPData, 10 mei 2022
DOI: 10.17182/hepdata.114781, https://www.hepdata.net/record/ins2077553
Dataset