In this project, we will compute the form factors relevant for B → K∗(→ Kπ)`+`− decays. To map the finite-volume matrix elements computed on the lattice to the infinite-volume B → Kπ matrix elements, the Kπ scattering amplitude needs to be determined using Lüscher’s method. Here we present preliminary results from our calculations with 2 + 1 flavors of dynamical clover fermions. We extract the P-wave scattering phase shifts and determine the K∗ resonance mass and the K∗Kπ coupling for two different ensembles with pion masses of 317(2) and 178(2) MeV.
|Original language||English (US)|
|State||Published - Nov 26 2018|
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