Coupling to Multihadron States with Chiral Fermions
J. Fallica*,
K.F. Liu,
J. Liang and
G. Wang*: corresponding author
Published on:
May 29, 2019
Abstract
Chiral symmerty is presumed to be a crucial component in the strong interaction and QCD, but its role in spectroscopy, especially for baryons, has not been fully explored. Compounding this, chiral fermions are uncommon in lattice calculations due to their expensive nature. We calculate ηπ, Kπ and Nπ states with qˉq and qqq interpolation fields at a=0.114fm on a 483×96 mixed-action lattice at the physical pion mass, with domain-wall sea quarks and overlap valence quarks. We study the spectral weights of these states as a function of the valence pion mass, which ranges from mπ=115−665MeV, to be compared with the results from non-chiral clover valence quarks on the same domain-wall lattice in order to examine their non-chiral effects, which are expected to decrease with the lattice spacing.
DOI: https://doi.org/10.22323/1.334.0080
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