Abstract
We investigate the prospects of the search for a nonzero EDM form factor in -pair production by collisions at BEPC-II collider energies. We compute the expectation values and covariances of simple and optimal -odd observables for -pair production at and 4.95 GeV with subsequent decays of into major leptonic or semihadronic modes. For the decays to two pions and three charged pions, we take the full kinematic information of the hadronic system into account. Applying cuts and using realistic assumptions on the eventually attainable integrated luminosities at these energies, and , respectively, we find the following. By taking into account purely semihadronic and semihadronic-leptonic decays one can achieve with optimal -odd observables the 1 s.d. sensitivities and at (4.95 GeV).
- Received 7 September 2021
- Accepted 11 November 2021
DOI:https://doi.org/10.1103/PhysRevD.104.115002
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society