CP violation studies at Super Tau-Charm Facility

Abstract

Charge-parity ($CP$) violation in the tau-charm energy region is a promising area for sensitive tests of Standard Model (SM) predictions and searches for new, beyond the SM physics. A future Tau-Charm Facility that operates at center-of-mass energies between 2.0 and 7.0 GeV, with a peak luminosity of $0.5\times 10^{35}$~cm${}^{-2}$s${}^{-1}$, would provide huge numbers of hadrons and tau ($\ddot{I}„$) leptons that are produced in low-background environments and with well understood kinematic properties. In this report, prospects for unique studies of $CP$ violation in the decay of charmed hadrons, and in the production and decay of hyperons and $\ddot{I}„$ leptons at a next-generation tau-charm facility are discussed. In addition, opportunities for improved tests of $CPT$ invariance test in $K^0-{\bar{K}}^0$ mixing are presented.