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New sum rules for the B$_{c}$→ J/ψ form factors
We derive new sum rules for the form factors of the $ {B}_c\to J/\psi \ell {\overline{\nu}}_{\ell } $ semileptonic transitions, employing the vacuum-to-B$_{c}$ correlation function of the J/ψ-interpolating and b → c weak currents. In the heavy quark limit and at a space-like momentum transfer to the...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2022
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/JHEP01(2023)032 http://cds.cern.ch/record/2827616 |