Study of C parity violating and strangeness changing J/ψ → PP weak decays *

Abstract

Although weak decays are rare, they are possible within the standard model of elementary particles. Inspired by the potential prospects of the future intensity frontier, the C parity violating , decays and the strangeness changing , decays are studied via the perturbative QCD approach. It is determined that the decays have relatively large branching ratios, approximately on the order of , which might be within the measurement capability and sensitivity of the future STCF experiment.