TY  - CONF
AU  - Rendon, Gumaro
AU  - Leskovec, Luka
AU  - Meinel, Stefan
AU  - Negele, John
AU  - Paul, Srijit
AU  - Petschlies, Marcus
AU  - Pochinsky, Andrew
AU  - Silvi, Giorgio
AU  - Syritsyn, Sergey
TI  - $K \pi$ scattering and the $K^*(892)$ resonance in 2+1 flavor QCD
VL  - LATTICE2018
CY  - Trieste
PB  - SISSA
M1  - FZJ-2018-07095
T2  - Proceedings of Science
SP  - 7 p.
PY  - 2019
N1  - 7 pages, 3 figures, Proceedings of the 36th Annual International Symposium on Lattice Field Theory (Lattice 2018), 22-28 July 2018, Michigan State University, East Lansing, Michigan USA
AB  - In this project, we will compute the form factors relevant for $B \to K^*(\to K \pi)\ell^+\ell^-$ decays. To map the finite-volume matrix elements computed on the lattice to the infinite-volume $B \to K \pi$ matrix elements, the $K \pi$ scattering amplitude needs to be determined using L\'uscher'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 $K^* K \pi$ coupling for two different ensembles with pion masses of $317(2)$ and $178(2)$ MeV.
T2  - 36th Annual International Symposium on Lattice Field Theory
CY  - 22 Jul 2018 - 28 Jul 2018, East Lansing, Michigan (USA)
Y2  - 22 Jul 2018 - 28 Jul 2018
M2  - East Lansing, Michigan, USA
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
UR  - https://juser.fz-juelich.de/record/858189
ER  -