Kπ scattering and excited meson spectroscopy using the stochastic LapH method

Ruairí Brett*, John Bulava, Jacob Fallica, Andrew Hanlon, Ben Hörz, Colin Morningstar

*Corresponding author for this work

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Abstract

Elastic I = 1/2, s- and p-wave Kπ scattering amplitudes are simultaneously calculated using a Lüscher style analysis on a single ensemble of dynamical Wilson-clover fermions at mπ ∼ 230 MeV. Partial wave mixing due to the reduced rotational symmetries of the finite volume is included up to ` = 2. We also present finite-volume QCD spectra on two large anisotropic lattices (323 ×256, 243 ×128) with mπ ∼ 230, 390 MeV respectively. In each symmetry channel, a large basis of one- and two-hadron interpolating operators is employed with all-to-all quark propagation treated using the stochastic LapH method.

Original languageEnglish
Article number071
JournalProceedings of Science
Volume334
Number of pages7
ISSN1824-8039
DOIs
Publication statusPublished - 2018
Event36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States
Duration: 22. Jul 201828. Jul 2018

Conference

Conference36th Annual International Symposium on Lattice Field Theory, LATTICE 2018
CountryUnited States
CityEast Lansing
Period22/07/201828/07/2018

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