Within general partial-wave mixing, a method for reducing the high dimension of the finite-volume Hamiltonian from Hamiltonian effective field theory is proposed. This method provides a new viewpoint on partial-wave mixing, and a set of matrices that can reflect the degree of partial-wave mixing. An example of isospin-2 ππ scattering is used to examine the consistency between this method and L\"{u}scher's method.
@article{arxiv.1912.04810,
title = {Partial Wave Mixing in Hamiltonian Effective Field Theory},
author = {Yan Li and Jia-jun Wu and Curtis D. Abell and Derek B. Leinweber and Anthony W. Thomas},
journal= {arXiv preprint arXiv:1912.04810},
year = {2019}
}
Comments
7 pages, 2 figures, 37th International Symposium on Lattice Field Theory - Lattice2019