Probing the CP Property of ALP-photon Interactions at Future Lepton Colliders

Jian-Nan Ding, Yandong Liu, Muyuan Song

We investigate a charge-parity (CP) odd axion-like particle (ALP) featuring simultaneous CP-conserving ($a{F}_{\mu \nu }{\tilde{F}}^{\mu \nu }$) and CP-violating ($a{F}_{\mu \nu }{F}^{\mu \nu }$) ALP-photon int…