Search for charm rare decays at BESIII

TL;DR

This paper reviews recent searches for rare and forbidden charm hadron decays conducted at the BESIII experiment, leveraging large datasets to explore phenomena beyond the Standard Model.

Contribution

It provides a comprehensive summary of the latest experimental efforts and results in searching for rare charm decays at BESIII.

Findings

No evidence of rare charm decays observed so far.

Stringent upper limits set on branching fractions of certain decay modes.

Enhanced sensitivity due to large data samples.

Abstract

The BESIII experiment has collected 2.6 billion $\psi(3686)$ events, 10 billion events, 20 $fb^{-1}$ of $D$ meson pairs at 3.773 GeV, and 7.33 $fb^{-1}$ of $D_sD_s^*$ events from 4.128 to 4.226 GeV. These huge data samples allow us to search for rare or forbidden processes in charm hadron decays. We summarize the recent research of charm rare decays at BESIII in this paper.