Abstract
A light scalar or vector particles have been introduced as a possible explanation for the anomaly and dark matter phenomena. Using events collected by the BESIII detector, we search for a light muon philic scalar or vector in the processes with invisible decays. No obvious signal is found, and the upper limits on the coupling between the muon and the particles are set to be between and for the mass in the range of at 90% credibility level.
- Received 3 November 2023
- Revised 14 December 2023
- Accepted 25 January 2024
DOI:https://doi.org/10.1103/PhysRevD.109.L031102
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