Kπ scattering and the K*(892) resonance in 2+1 flavor QCD

Gumaro Rendon, Luka Leskovec, Stefan Meinel, John W. Negele, Srijit Paul, Marcus Petschlies, Andrew Pochinsky, Giorgio Silvi, Sergey Syritsyn

Research output: Contribution to journalConference article

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 KKπ coupling for two different ensembles with pion masses of 317(2) and 178(2) MeV.

Original languageEnglish (US)
Article number073
JournalProceedings of Science
Volume334
StatePublished - Jan 1 2018
Event36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States
Duration: Jul 22 2018Jul 28 2018

ASJC Scopus subject areas

  • General

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    Rendon, G., Leskovec, L., Meinel, S., Negele, J. W., Paul, S., Petschlies, M., Pochinsky, A., Silvi, G., & Syritsyn, S. (2018). Kπ scattering and the K*(892) resonance in 2+1 flavor QCD. Proceedings of Science, 334, [073].