Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série IJCLAB-PTH
Domaines hep-ph
Date Jeudi 23 Janvier 2025
Heure 11:00
Institut IJCLAB
Salle 114
Nom de l'orateur Leskovec
Prenom de l'orateur Luka
Addresse email de l'orateur
Institution de l'orateur IJS Ljubljana
Titre The $B\to \pi \pi\ell\nu$ process on the lattice
Résumé In the quest for a precise determination of the smallest CKM matrix element,  $|V_{ub}|$, the decay $B \to \rho\,\ell\,\bar{\nu}$ offers a promising route to resolving the discrepancy between exclusive and inclusive determinations. This talk will outline our progress on a lattice QCD calculation of the $B \to \rho\,\ell\,\bar{\nu}$ form factors, where the $\rho$ resonance is treated as an enhancement in P-wave $\pi\pi$ scattering. After discussing the main computational hurdles, I will present details of our calculation and results obtained on a gauge ensemble with 2+1 dynamical quarks at a pion mass of approximately 320 MeV..
Numéro de preprint arXiv
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