https://doi.org/10.1140/epjc/s10052-023-11282-8
Regular Article - Theoretical Physics
Semileptonic b-baryon decays within a new physics approach
School of Physics, University of Hyderabad, 500046, Hyderabad, India
Received:
5
August
2022
Accepted:
30
January
2023
Published online:
10
February
2023
The excess in the measurement of the branching fractions of 
and 
from the standard model expectation hints the existence of new physics beyond the standard model. Motivated by these indications, we study similar modes mediated by 
transitions, in particular, the semileptonic b-baryon decay modes 
and 
. We consider a general low energy effective Hamiltonian approach, which includes both standard model and new physics contributions. Within different new physics scenarios, we investigate the impact of the new contributions on these modes and present predictions for various semileptonic 
-spectra.
© The Author(s) 2023
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