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

被引：3

作者：

Li, Jingshu ^{[1
]}

Wang, Wanyue ^{[1
]}

Cai, Xunye ^{[1
]}

Yang, Chuxue ^{[1
]}

Lu, Meng ^{[1
]}

You, Zhengyun ^{[1
]}

Qian, Sitian ^{[2
,3
]}

Li, Qiang ^{[2
,3
]}

机构：

[1] Sun Yat Sen Univ, Sch Phys, Guangzhou 510275, Peoples R China

[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[3] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 2023卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Lepton Flavour Violation (charged); New Gauge Interactions;

D O I：

10.1007/JHEP03(2023)190

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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 e mu, e tau and mu tau 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 tau 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 mu tau channel.

引用

页数：12

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