Revisiting heavy-flavor conserving weak decays of charmed baryons within the nonrelativistic quark model
Year: 2025
Type: article
Abstract: In this work, we investigate the heavy-flavor conserving weak decays of charmed baryons, specifically the processes Ξ c → Λ c π and Ω c → Ξ c π , where the pole model is employed to account for the nonfactorizable contributions. Additionally, the nonperturbative parameters involved are determined within the framework of the nonrelativistic quark model, utilizing exact baryon wave functions obtained by solving the Schrödinger equation with a nonrelativistic potential. By considering the mixing angle θ ∈ ( 24.4 ° , 32.4 ° ) for Ξ c − Ξ c ′ mixing, we find that the experimental data can be effectively reproduced. Furthermore, we estimate the branching ratios: B ( Ξ c + → Λ c + π 0 ) = ( 8.69 – 9.79 ) × 10 − 3 , B ( Ω c 0 → Ξ c + π − ) = ( 11.3 – 12.1 ) × 10 − 3 , and B ( Ω c 0 → Ξ c 0 π 0 ) = ( 4.67 – 5.23 ) × 10 −
Authors: Yu-Shuai Li, Xiang Liu
Institutions: Peking University, Institute of Modern Physics, Lanzhou University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4408522423