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Multi-hadron spectroscopy in a large physical volume

High Energy Physics - Lattice 2018-04-18 v1
Authors: John Bulava , Ben Hörz , Colin Morningstar
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Abstract

We demonstrate the efficacy of the stochastic LapH method to treat all-to-all quark propagation on a Nf=2+1N_f = 2+1 CLS ensemble with large linear spatial extent L=5.5L = 5.5 fm, allowing us to obtain the benchmark elastic isovector p-wave pion-pion scattering amplitude to good precision already on a relatively small number of gauge configurations. These results hold promise for multi-hadron spectroscopy at close-to-physical pion mass with exponential finite-volume effects under control.

Keywords

chiral perturbation theory

Cite

@article{arxiv.1710.04545,
  title  = {Multi-hadron spectroscopy in a large physical volume},
  author = {John Bulava and Ben Hörz and Colin Morningstar},
  journal= {arXiv preprint arXiv:1710.04545},
  year   = {2018}
}

Comments

8 pages, 4 figures. Presented at Lattice 2017, the 35th International Symposium on Lattice Field Theory, Granada, Spain, 18-24 June 2017

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