# Semileptonic B decays and the inclusive determination of |Vub| - High Energy Physics - Phenomenology

Semileptonic B decays and the inclusive determination of |Vub| - High Energy Physics - Phenomenology - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We present a new theoretical framework for the study of $B\to X u \ell u$decays, which includes all known perturbative and non-perturbativecontributions and a description of leading and subleading Fermi motion effects.The perturbative and non-perturbative regimes are separated by a hard-Wilsonian cutoff $\mu \sim 1$ GeV. We bring into focus some problems related tothe high $q^2$ region and to Weak Annihilation effects. We provide estimates ofthe CKM parameter $|V {ub}|$ using the described framework and discuss therelated theoretical uncertainty.

Autor: P. Giordano

Fuente: https://arxiv.org/