Search for charged-lepton flavor violation in the production and decay of top quarks using trilepton final states

2023/12/10 by J. Li, Li, Jingyan
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2312.06040

openalex publication_date 2023/12/10 · openalex created_date 2023/12/14 · openalex updated_date 2026/07/28

Abstract

This document describes a search for charged-lepton flavor violation (CLFV) in the production and decay of top quarks using 138 fb^-1 of data collected by the CMS experiment at a center-of-mass energy of 13 TeV. Events are selected for analysis if they contain an opposite-sign electron-muon pair, a third charged lepton (electron or muon), at least one jet, and at most one jet associated with a bottom quark. The analysis utilizes boosted decision trees to separate background processes from a possible signal. The data were found to be consistent with the standard model expectation. Exclusion limits were placed on different CLFV interactions, constituting the most stringent limits to date on these processes.

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