PoS - Proceedings of Science
Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Hadron Spectroscopy and Interactions
Resonance properties from lattice energy levelsusing chiral effective field theory
Z. Guo*, L. Liu, U.G. Meißner, J.A. Oller and A. Rusetsky
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Published on: May 29, 2019
We use chiral effective field theory to study the lattice finite-volume energy levels from meson-meson scattering. Hadron resonance properties and scattering amplitudes at physical masses are determined from the lattice energy levels calculated at unphysically large pion masses. The results from the $\pi\eta, K\bar{K}$ and $\pi\eta'$ coupled-channel scattering and the $a_0(980)$ resonance are given as a concrete example.
DOI: https://doi.org/10.22323/1.334.0055
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