A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders

Abstract Charged lepton flavor violation (CLFV) represents a transition between charged leptons of different generations that violates lepton flavor conservation, which is a clear signature of possible new physics beyond the standard model. By exploiting a typical example model of extra Z′ gauge bos...

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Main Authors: Jingshu Li, Wanyue Wang, Xunye Cai, Chuxue Yang, Meng Lu, Zhengyun You, Sitian Qian, Qiang Li
Format: Article
Language:English
Published: SpringerOpen 2023-03-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP03(2023)190
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author Jingshu Li
Wanyue Wang
Xunye Cai
Chuxue Yang
Meng Lu
Zhengyun You
Sitian Qian
Qiang Li
author_facet Jingshu Li
Wanyue Wang
Xunye Cai
Chuxue Yang
Meng Lu
Zhengyun You
Sitian Qian
Qiang Li
author_sort Jingshu Li
collection DOAJ
description Abstract Charged lepton flavor violation (CLFV) represents a transition between charged leptons of different generations that violates lepton flavor conservation, which is a clear signature of possible new physics beyond the standard model. By exploiting a typical example model of extra Z′ gauge boson, we perform a detailed comparative study on CLFV searches at several future lepton colliders, including a 240 GeV electron-positron collider and a TeV scale muon collider. Based on detailed signal and background Monte-Carlo studies with fast detector simulations, we derive the potentials in searching for Z′ mediated CLFV couplings with eμ, eτ and μτ of different future colliders. The results are compared with the current and prospect limits set by either low-energy experiments or the high-energy LHC experiments. The sensitivity of the τ related CLFV coupling strength at future lepton colliders will be significantly improved in comparison to the current best constraints and the prospect constraints for the μτ channel.
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spelling doaj.art-1508b79678094299bda1e1cfeec8c4262023-06-25T11:07:10ZengSpringerOpenJournal of High Energy Physics1029-84792023-03-012023311210.1007/JHEP03(2023)190A comparative study of Z′ mediated charged lepton flavor violation at future lepton collidersJingshu Li0Wanyue Wang1Xunye Cai2Chuxue Yang3Meng Lu4Zhengyun You5Sitian Qian6Qiang Li7School of Physics, Sun Yat-Sen UniversitySchool of Physics, Sun Yat-Sen UniversitySchool of Physics, Sun Yat-Sen UniversitySchool of Physics, Sun Yat-Sen UniversitySchool of Physics, Sun Yat-Sen UniversitySchool of Physics, Sun Yat-Sen UniversitySchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking UniversitySchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking UniversityAbstract Charged lepton flavor violation (CLFV) represents a transition between charged leptons of different generations that violates lepton flavor conservation, which is a clear signature of possible new physics beyond the standard model. By exploiting a typical example model of extra Z′ gauge boson, we perform a detailed comparative study on CLFV searches at several future lepton colliders, including a 240 GeV electron-positron collider and a TeV scale muon collider. Based on detailed signal and background Monte-Carlo studies with fast detector simulations, we derive the potentials in searching for Z′ mediated CLFV couplings with eμ, eτ and μτ of different future colliders. The results are compared with the current and prospect limits set by either low-energy experiments or the high-energy LHC experiments. The sensitivity of the τ related CLFV coupling strength at future lepton colliders will be significantly improved in comparison to the current best constraints and the prospect constraints for the μτ channel.https://doi.org/10.1007/JHEP03(2023)190Lepton Flavour Violation (charged)New Gauge Interactions
spellingShingle Jingshu Li
Wanyue Wang
Xunye Cai
Chuxue Yang
Meng Lu
Zhengyun You
Sitian Qian
Qiang Li
A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders
Journal of High Energy Physics
Lepton Flavour Violation (charged)
New Gauge Interactions
title A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders
title_full A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders
title_fullStr A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders
title_full_unstemmed A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders
title_short A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders
title_sort comparative study of z mediated charged lepton flavor violation at future lepton colliders
topic Lepton Flavour Violation (charged)
New Gauge Interactions
url https://doi.org/10.1007/JHEP03(2023)190
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