https://doi.org/10.1140/epjc/s10052-025-14278-8
Regular Article - Theoretical Physics
Isospin sum rules for bottom-baryon weak decays
Department of Physics, Hunan Normal University, 410081, Changsha, China
Received:
18
March
2025
Accepted:
4
May
2025
Published online:
3
June
2025
Isospin symmetry, as the most precise flavor symmetry, can be used to extract information about hadronic dynamics. The effective Hamiltonian operators of bottom quark weak decays are zero under a series of isospin lowering operators 
, which permits us to generate isospin sum rules without the Wigner–Eckart invariants. In this work, we derive hundreds of isospin sum rules for the two- and three-body non-leptonic decays of bottom baryons. They provide hints for new decay modes and the isospin partners of pentaquark states.
© The Author(s) 2025
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