English

ALPs searches at BESIII

High Energy Physics - Experiment 2023-05-16 v1

Abstract

A search for an axion-like particle with 2.7 billion ψ(3686)\psi(3686) events collected by the BESIII detector is presented. No significant signal is observed, and the upper limits on the branching fraction of J/ψγaJ/\psi\rightarrow\gamma a and the ALP-photon coupling constant gaγγg_{a\gamma\gamma} are set at the 95% confidence level in the mass range of 0.165ma2.840.165\leq m_a\leq 2.84 GeV/c2c^2. The limits on B(J/ψγa)B(J/\psi\rightarrow\gamma a) range from 8.3×1088.3\times10^{-8} to 1.8×1061.8\times10^{-6} over the search region, and the constraints on the ALP-photon coupling are the most stringent to date for 0.165ma1.4680.165\leq m_a\leq 1.468 GeV/c2c^2.

Keywords

Cite

@article{arxiv.2305.08043,
  title  = {ALPs searches at BESIII},
  author = {Peicheng Jiang},
  journal= {arXiv preprint arXiv:2305.08043},
  year   = {2023}
}

Comments

4 pages, 4 figures, contribution to the 2023 Electroweak session of the 57th Rencontres de Moriond

R2 v1 2026-06-28T10:33:51.811Z