Abstract
We propose to search for millicharged particles in electron colliders operated with the center-of-mass energies at , which include Belle II, BESIII, BABAR, and also the proposed experiment Super Tau Charm Factory (STCF). We use the monophoton final state at electron colliders to probe the parameter space of millicharged particles, that is spanned by millicharge and mass . We find that electron colliders have sensitivity to the previously unexplored parameter space for millicharged particles with MeV–GeV mass: for in BABAR, for in BESIII, for in Belle II, and for in STCF.
1 More- Received 17 December 2019
- Accepted 9 June 2020
DOI:https://doi.org/10.1103/PhysRevD.102.015002
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