Recent results on (semi)-leptonic $D$ decays and charm baryons at BESIII

TL;DR

This paper reviews recent experimental results from BESIII on (semi)-leptonic decays of D mesons and charm baryons, utilizing the largest datasets to date for precision measurements and polarization studies.

Contribution

It presents new measurements of leptonic and semileptonic decays and baryon polarization using the expanded BESIII datasets, advancing understanding of charm hadron decays.

Findings

Improved measurements of D meson decay rates

First polarization measurements of charm baryon pairs

Enhanced data sample size for charm decay analysis

Abstract

The BESIII collaboration has collected the world's largest datasets at the energy thresholds for producing a variety of open-charm hadrons. Most recently, the BESIII collaboration has collected datasets that significantly increase the number of $D^0$, $D^+$, and $\Lambda_c^+$ hadrons for analysis, further improving on previous datasets collected by BESIII. These proceedings highlight recent results that leverage these datasets to study the pure leptonic and semileptonic decays of these hadrons, as well as study the polarization of baryon pairs produced in electron-positron collisions.