Precise measurement of CP violating τ EDM through e + e − → γ *, ψ(2s) → τ + τ −

Abstract A nonzero electric dipole moment of a tauon, d τ , signals CP violation and provides an important probe for new physics. We study methods to measure d τ at low energy e + e − colliders through the processes e + e − → γ *, ψ(2S) → τ + τ − with τ ± decays into a charged hadron and a tau neutr...

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Bibliographic Details
Main Authors: Xiao-Gang He, Chia-Wei Liu, Jian-Ping Ma, Chang Yang, Zi-Yue Zou
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP04(2025)001
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