Year: 2026
Type: preprint
Abstract: BESIII has accumulated 6.4~fb$^{-1}$ of $e^+e^-$ collision data at center-of-mass energies from 4.60 to 4.95~GeV, corresponding to the world's largest sample of $Λ_c^+\barΛ_c^-$ pairs. This proceeding summarizes recent BESIII results on charmed baryon decays, including the first observation of the transverse polarization of the $Λ_c^+$ in $e^+e^-\toΛ_c^+\barΛ_c^-$, a precision measurement of the inclusive decay $Λ_c^+\toΛX$, the first observations of $Λ_c^+\to ne^+ν_e$ and $Λ_c^+\to nπ^+η$ with deep-learning techniques, the first observation of $Λ_c^+\to pK^-e^+ν_e$ together with evidence for $Λ_c^+\toΣ^\pmπ^\mp e^+ν_e$, and partial wave analyses of $Λ_c^+\toΛπ^+η$.
Source: arXiv (Cornell University)
Author: He, Chengzhi
Institution: Peking University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7223158053