## Abstract

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) |
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Article number | 073 |

Journal | Proceedings of Science |

Volume | 334 |

State | Published - Jan 1 2018 |

Event | 36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States Duration: Jul 22 2018 → Jul 28 2018 |

## ASJC Scopus subject areas

- General