https://doi.org/10.1140/epjc/s10052-024-12663-3
Regular Article - Theoretical Physics
Heavy baryon decays into light meson and dark baryon within LCSR
1
School of Physics, East China University of Science and Technology, 200237, Shanghai, China
2
Shanghai Key Laboratory of Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao Tong University, 200240, Shanghai, China
3
School of Materials Science and Physics, China University of Mining and Technology, 221116, Xuzhou, China
4
Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, 210023, Nanjing, Jiangsu, China
Received:
30
January
2024
Accepted:
10
March
2024
Published online:
23
March
2024
We studied the decays of Heavy baryon into a pseudoscalar meson and a dark baryon in the recently developed B-Mesogenesis scenario, where the two types of effective Lagrangians proposed by the scenario are both considered. The decay amplitudes of 
are calculated by light-cone sum rules using its light-cone distribution amplitudes. The decay amplitudes of 
are related with those of through a flavor SU(3) analysis. The uncertainties of threshold parameter and the Borel parameter are both considered in the numerical calculation. The values of effective coupling constants in the B-Mesogenesis are taken as their upper limits that obtained from our previous study on the inclusive decay. The upper limits of the decay branching fractions are presented as functions of the dark baryon mass.
© The Author(s) 2024
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