PoS - Proceedings of Science
Volume 430 - The 39th International Symposium on Lattice Field Theory (LATTICE2022) - Plenaries
$B\to D^{(\ast)}\ell\nu$ semileptonic decays at non-zero recoil
A. Vaquero
Full text: pdf
Pre-published on: March 02, 2023
Published on: April 06, 2023
$B$ anomalies play a prominent role in Beyond the Standard Model (BSM) physics searches. In particular, the long standing tension between the inclusive and the exclusive determinations of the CKM matrix element $|V_{cb}|$ and the current tensions in the $R(D)-R(D^\ast)$ plane between theory and experiment have brought the $B\to D^{(\ast)}\ell\nu$ semileptonic processes to the spotlight. Existing lattice-QCD calculations of the $B\to D\ell\nu$ form factors at non-zero recoil are being complemented with very recent developments in the $B\to D^{\ast}\ell\nu$ channel. In this review I discuss recent progress in lattice calculations of $B\to D^{(\ast)}\ell\nu$, as well as the implications of these results for high precision determinations of $|V_{cb}|$ and the Lepton Flavor Universality (LFU) ratios $R(D^{(\ast)})$.
DOI: https://doi.org/10.22323/1.430.0250
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