August 29, 2022 to September 4, 2022
America/New_York timezone

Semileptonic $B \to D^*$ Decay with Lattice QCD

Sep 3, 2022, 4:30 PM
30m
Palm Ballroom 3 ,

Palm Ballroom 3 ,

Parallel session talk Heavy Flavors and the CKM Matrix HF: Heavy Flavors and the CKM Matrix

Speaker

Judd Harrison (University of Glasgow)

Description

We present preliminary lattice QCD results from the HPQCD collaboration for the $B\to D^*$ form factors, including tensor form factors. We use these results to construct the differential decay rate, which we compare directly to experimental data. We also present a 'lattice only' determination of the ratio, $R(D^*)=\Gamma(B\to D^*\tau\overline{\nu}_\tau)/\Gamma(B\to D^*\mu\overline{\nu}_\mu)$, as well as a model-independent determination of the CKM matrix element $|V_{cb}|$.

Primary author

Judd Harrison (University of Glasgow)

Presentation materials