Search for CP violation using t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ events in the lepton+jets channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV
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...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2023
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| Online Access: | https://hdl.handle.net/1721.1/150929 |
| _version_ | 1826189893618892800 |
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| author | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. |
| author_facet | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. |
| author_sort | Tumasyan, A. |
| collection | MIT |
| description | 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
$$ \sqrt{s} $$
= 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 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 ± 0.10 (stat) ± 0.07(syst), and the asymmetries exhibit no evidence for CP-violating effects, consistent with expectations from the standard model. |
| first_indexed | 2024-09-23T08:27:57Z |
| format | Article |
| id | mit-1721.1/150929 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:27:57Z |
| publishDate | 2023 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1509292023-06-21T03:50:25Z Search for CP violation using t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ events in the lepton+jets channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. 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 $$ \sqrt{s} $$ = 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 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 ± 0.10 (stat) ± 0.07(syst), and the asymmetries exhibit no evidence for CP-violating effects, consistent with expectations from the standard model. 2023-06-20T19:37:18Z 2023-06-20T19:37:18Z 2023-06-14 2023-06-18T03:10:36Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/150929 Journal of High Energy Physics. 2023 Jun 14;2023(6):81 PUBLISHER_CC en https://doi.org/10.1007/JHEP06(2023)081 Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Search for CP violation using t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ events in the lepton+jets channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title | Search for CP violation using t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ events in the lepton+jets channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full | Search for CP violation using t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ events in the lepton+jets channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_fullStr | Search for CP violation using t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ events in the lepton+jets channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full_unstemmed | Search for CP violation using t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ events in the lepton+jets channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_short | Search for CP violation using t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ events in the lepton+jets channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_sort | search for cp violation using t t ¯ textrm t overline textrm t events in the lepton jets channel in pp collisions at s sqrt s 13 tev |
| url | https://hdl.handle.net/1721.1/150929 |
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