Partial Wave Mixing in Hamiltonian Effective Field Theory

Abstract

We explore partial-wave mixing in the finite volume based on HEFT, and provide the P-Matrix to show the degree of partial-wave mixing. An example of isospin-2 $\pi \pi$ scattering is used to check the consistency between HEFT and Lüscher's method.

Comments: 5 pages, 2 figures, The 18th International Conference on Hadron Spectroscopy and Structure (HADRON2019)