Charmed baryon decays at BESIII · arXivDesk2604.14716Apr 16, 20265 pages, 4 figures, proceedings for Baryons 2025 conference
Charmed baryon decays at BESIII
Xudong Yu
Abstract
BESIII has accumulated 4.5 fb−1 of e+e− collision data in the 4.6 to 4.7 GeV energy range, corresponding to the world's largest sample of Λc+Λˉc−
pairs. This paper summarizes recent BESIII results on charmed-baryon decays, including the observation of the rare semi-leptonic decay
Λc+→ne+νe using a Graph Neural Network, the first measurement of the decay asymmetry in the pure
-exchange decay
Λc+→Ξ0K+ , and branching fraction measurements of the inclusive decays
Λc+→Xe+νe and
Λˉc−→nˉX . We also report partial wave analyses of
Λc+→Λπ+π0 and
Λc+→Λπ+η , measurements of Cabibbo-suppressed decays such as
Λc+→pπ0 , and studies of
KS0−KL0 asymmetries in
decays.
at BESIII