Search for CP violating top quark couplings in pp collisions at s $$ \sqrt{s} $$ = 13 TeV
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...
| 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/1721.1/151129 |
| _version_ | 1826209232421126144 |
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| author | Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Pitters, F. M. Schieck, J. Schöfbeck, R. Spanring, M. Templ, S. Waltenberger, W. |
| author_facet | Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Pitters, F. M. Schieck, J. Schöfbeck, R. Spanring, M. Templ, S. Waltenberger, W. |
| author_sort | Tumasyan, A. |
| collection | MIT |
| description | 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,
O
$$ \mathcal{O} $$
1 and
O
$$ \mathcal{O} $$
3, which are Lorentz scalars. The observable
O
$$ \mathcal{O} $$
1 is constructed from the four-momenta of the charged leptons and the reconstructed top quarks, while
O
$$ \mathcal{O} $$
3 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. |
| first_indexed | 2024-09-23T14:19:17Z |
| format | Article |
| id | mit-1721.1/151129 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:19:17Z |
| publishDate | 2023 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1511292023-07-18T03:16:30Z Search for CP violating top quark couplings in pp collisions at s $$ \sqrt{s} $$ = 13 TeV Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Pitters, F. M. Schieck, J. Schöfbeck, R. Spanring, M. Templ, S. Waltenberger, W. 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, O $$ \mathcal{O} $$ 1 and O $$ \mathcal{O} $$ 3, which are Lorentz scalars. The observable O $$ \mathcal{O} $$ 1 is constructed from the four-momenta of the charged leptons and the reconstructed top quarks, while O $$ \mathcal{O} $$ 3 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. 2023-07-17T14:02:14Z 2023-07-17T14:02:14Z 2023-07-04 2023-07-16T03:10:55Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/151129 Journal of High Energy Physics. 2023 Jul 04;2023(7):23 PUBLISHER_CC en https://doi.org/10.1007/JHEP07(2023)023 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. Bergauer, T. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Pitters, F. M. Schieck, J. Schöfbeck, R. Spanring, M. Templ, S. Waltenberger, W. Search for CP violating top quark couplings in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title | Search for CP violating top quark couplings in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full | Search for CP violating top quark couplings in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_fullStr | Search for CP violating top quark couplings in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full_unstemmed | Search for CP violating top quark couplings in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_short | Search for CP violating top quark couplings in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_sort | search for cp violating top quark couplings in pp collisions at s sqrt s 13 tev |
| url | https://hdl.handle.net/1721.1/151129 |
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