Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory
A search for new physics in top quark production with additional final-state leptons is performed using data collected by the CMS experiment in proton-proton collisions at s...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2024
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| Online Access: | https://hdl.handle.net/1721.1/153285 |
| _version_ | 1811093269818376192 |
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| author | Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P. S. Jeitler, M. Krammer, N. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. Schwarz, D. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P. S. Jeitler, M. Krammer, N. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. Schwarz, D. |
| author_sort | Hayrapetyan, A. |
| collection | MIT |
| description | A search for new physics in top quark production with additional final-state leptons is performed using data collected by the CMS experiment in proton-proton collisions at
s
$$ \sqrt{s} $$
= 13 TeV at the LHC during 2016–2018. The data set corresponds to an integrated luminosity of 138 fb−1. Using the framework of effective field theory (EFT), potential new physics effects are parametrized in terms of 26 dimension-six EFT operators. The impacts of EFT operators are incorporated through the event-level reweighting of Monte Carlo simulations, which allows for detector-level predictions. The events are divided into several categories based on lepton multiplicity, total lepton charge, jet multiplicity, and b-tagged jet multiplicity. Kinematic variables corresponding to the transverse momentum (pT) of the leading pair of leptons and/or jets as well as the pT of on-shell Z bosons are used to extract the 95% confidence intervals of the 26 Wilson coefficients corresponding to these EFT operators. No significant deviation with respect to the standard model prediction is found. |
| first_indexed | 2024-09-23T15:42:34Z |
| format | Article |
| id | mit-1721.1/153285 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:42:34Z |
| publishDate | 2024 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1532852024-07-11T18:51:35Z Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P. S. Jeitler, M. Krammer, N. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. Schwarz, D. Massachusetts Institute of Technology. Department of Physics A search for new physics in top quark production with additional final-state leptons is performed using data collected by the CMS experiment in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV at the LHC during 2016–2018. The data set corresponds to an integrated luminosity of 138 fb−1. Using the framework of effective field theory (EFT), potential new physics effects are parametrized in terms of 26 dimension-six EFT operators. The impacts of EFT operators are incorporated through the event-level reweighting of Monte Carlo simulations, which allows for detector-level predictions. The events are divided into several categories based on lepton multiplicity, total lepton charge, jet multiplicity, and b-tagged jet multiplicity. Kinematic variables corresponding to the transverse momentum (pT) of the leading pair of leptons and/or jets as well as the pT of on-shell Z bosons are used to extract the 95% confidence intervals of the 26 Wilson coefficients corresponding to these EFT operators. No significant deviation with respect to the standard model prediction is found. 2024-01-09T17:27:58Z 2024-01-09T17:27:58Z 2023-12-12 2023-12-31T04:20:41Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/153285 Journal of High Energy Physics. 2023 Dec 12;2023(12):68 PUBLISHER_CC en https://doi.org/10.1007/JHEP12(2023)068 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P. S. Jeitler, M. Krammer, N. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. Schwarz, D. Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory |
| title | Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory |
| title_full | Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory |
| title_fullStr | Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory |
| title_full_unstemmed | Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory |
| title_short | Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory |
| title_sort | search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory |
| url | https://hdl.handle.net/1721.1/153285 |
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