Speaker
Luka Leskovec
Description
The production mechanism of resonances varies between experiments. One way to produce the \rho resonance at LHCb and BelleII is through the semileptonic B-meson decay, B\to\rho\ell\nu. It's transition amplitude provides insight into how the resonances are made and helps determine one of the basic parameters of the standard model, the CKM matrix element V_{ub}. In this talk, we will present our progress towards a lattice QCD determination of B\to\rho (\to \pi\pi) \ell \nu transition amplitude, with N_f=2+1 clover fermions whose mass corresponding to m_\pi ~ 320 MeV and L=3.6 fm. We will briefly introduce the theoretical framework and discuss some preliminary results.
Primary author
Luka Leskovec
