Radiative semileptonic decays of beautiful hadrons
Abstract
A bstract We derive predictions for the hadronic matrix elements of radiative semileptonic decays of beautiful hadrons within Heavy Quark Effective Theory (HQET), relevant for future measurements at Belle II and LHCb. Our study considers Λ b → Λ c , $$ {\Lambda}_{c1}^{\left(\ast \right)} $$ Λ c 1 ∗ and $$ \overline{B}\to {D}^{\left(\ast \right)} $$ B ¯ → D ∗ , D ** transitions. The symmetries of HQET highly constrain the number of structure-dependent form factors in all cases. In the soft and sub-leading soft regions, all the form factors are fully determined in terms of non-radiative Isgur-Wise functions and the magnetic dipole moments of the heavy hadrons. The structure of higher order corrections is also briefly discussed.
Fields of Study & Subjects
Quantum Chromodynamics and Particle Interactions
Particle physics theoretical and experimental studies
High-Energy Particle Collisions Research
Publication details
- Journal / source
- Journal of High Energy Physics
- Publisher
- Springer Science and Business Media LLC
- Volume
- 2026
- Issue
- 5
- Publication date
- 11 May 2026
- Language
- EN