Search for charged-lepton flavor violation in top quark production and decay in pp collisions at s $$ \sqrt{s} $$ = 13 TeV
Abstract Results are presented from a search for charged-lepton flavor violating (CLFV) interactions in top quark production and decay in pp collisions at a center-of-mass energy of 13 TeV. The events are required to contain one oppositely charged electron-muon...
| Main Authors: | , , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2022
|
| Online Access: | https://hdl.handle.net/1721.1/143486 |
| _version_ | 1826194280633335808 |
|---|---|
| author | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. 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. Schöfbeck, R. Schwarz, D. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. 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. Schöfbeck, R. Schwarz, D. |
| author_sort | Tumasyan, A. |
| collection | MIT |
| description | Abstract
Results are presented from a search for charged-lepton flavor violating (CLFV) interactions in top quark production and decay in pp collisions at a center-of-mass energy of 13 TeV. The events are required to contain one oppositely charged electron-muon pair in the final state, along with at least one jet identified as originating from a bottom quark. The data correspond to an integrated luminosity of 138 fb−1, collected by the CMS experiment at the LHC. This analysis includes both the production (q → eμt) and decay (t → eμq) modes of the top quark through CLFV interactions, with q referring to a u or c quark. These interactions are parametrized using an effective field theory approach. With no significant excess over the standard model expectation, the results are interpreted in terms of vector-, scalar-, and tensor-like CLFV four-fermion effective interactions. Finally, observed exclusion limits are set at 95% confidence levels on the respective branching fractions of a top quark to an eμ pair and an up (charm) quark of 0.13 × 10−6 (1.31 × 10−6), 0.07 × 10−6 (0.89 × 10−6), and 0.25 × 10−6 (2.59 × 10−6) for vector, scalar, and tensor CLFV interactions, respectively. |
| first_indexed | 2024-09-23T09:53:38Z |
| format | Article |
| id | mit-1721.1/143486 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:53:38Z |
| publishDate | 2022 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1434862023-12-07T18:21:34Z Search for charged-lepton flavor violation in top quark production and decay in pp collisions at s $$ \sqrt{s} $$ = 13 TeV Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. 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. Schöfbeck, R. Schwarz, D. Massachusetts Institute of Technology. Department of Physics Abstract Results are presented from a search for charged-lepton flavor violating (CLFV) interactions in top quark production and decay in pp collisions at a center-of-mass energy of 13 TeV. The events are required to contain one oppositely charged electron-muon pair in the final state, along with at least one jet identified as originating from a bottom quark. The data correspond to an integrated luminosity of 138 fb−1, collected by the CMS experiment at the LHC. This analysis includes both the production (q → eμt) and decay (t → eμq) modes of the top quark through CLFV interactions, with q referring to a u or c quark. These interactions are parametrized using an effective field theory approach. With no significant excess over the standard model expectation, the results are interpreted in terms of vector-, scalar-, and tensor-like CLFV four-fermion effective interactions. Finally, observed exclusion limits are set at 95% confidence levels on the respective branching fractions of a top quark to an eμ pair and an up (charm) quark of 0.13 × 10−6 (1.31 × 10−6), 0.07 × 10−6 (0.89 × 10−6), and 0.25 × 10−6 (2.59 × 10−6) for vector, scalar, and tensor CLFV interactions, respectively. 2022-06-21T13:32:52Z 2022-06-21T13:32:52Z 2022-06-15 2022-06-19T03:11:58Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/143486 Journal of High Energy Physics. 2022 Jun 15;2022(6):82 PUBLISHER_CC en https://doi.org/10.1007/JHEP06(2022)082 Creative Commons Attribution https://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. 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. Schöfbeck, R. Schwarz, D. Search for charged-lepton flavor violation in top quark production and decay in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title | Search for charged-lepton flavor violation in top quark production and decay in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full | Search for charged-lepton flavor violation in top quark production and decay in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_fullStr | Search for charged-lepton flavor violation in top quark production and decay in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full_unstemmed | Search for charged-lepton flavor violation in top quark production and decay in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_short | Search for charged-lepton flavor violation in top quark production and decay in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_sort | search for charged lepton flavor violation in top quark production and decay in pp collisions at s sqrt s 13 tev |
| url | https://hdl.handle.net/1721.1/143486 |
| work_keys_str_mv | AT tumasyana searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT adamw searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT andrejkovicjw searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT bergauert searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT chatterjees searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT dragicevicm searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT escalantedelvallea searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT fruhwirthr searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT jeitlerm searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT krammern searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT lechnerl searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT likod searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT mikuleci searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT paulitschp searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT pittersfm searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT schieckj searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT schofbeckr searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev AT schwarzd searchforchargedleptonflavorviolationintopquarkproductionanddecayinppcollisionsatssqrts13tev |