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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

$K\pi$ scattering and excited meson spectroscopy using the Stocastic LapH method

Jul 26, 2018, 8:50 AM
20m
105 (Kellogg Hotel and Conference Center)

105

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Ruairí Brett (Carnegie Mellon University)

Description

Elastic $I=1/2$, $s$- and $p$-wave $K\pi$ scattering amplitudes are simultaneously calculated using a Lüscher style analysis on a single ensemble of dynamical Wilson-clover fermions at $m_\pi \sim 230$MeV. Partial wave mixing due the reduced rotational symmetries of the finite volume is included up to $\ell=2$. We also present finite-volume QCD spectra on two large anisotropic lattices ($32^3\times256$, $24^3\times128$) with $m_\pi \sim 230, 390$MeV. 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.

Primary author

Ruairí Brett (Carnegie Mellon University)

Co-authors

Dr Andrew Hanlon (Helmholtz-Institut Mainz, JGU) Dr Ben Hörz (PRISMA Cluster of Excellence and Institute for Nuclear Physics, Johannes Gutenberg-Universität) Prof. Colin Morningstar (Carnegie Mellon University) Dr Jacob Fallica (University of Kentucky) Prof. John Bulava (Dept. of Mathematics and Computer Science and CP3-Origins, University of Southern Denmark)

Presentation Materials