Partial Wave Mixing in Hamiltonian Effective Field Theory

2019/11/15 by Yan Li, Li, Yan, Jia-Jun Wu +7 · 2 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Quantum optics and atomic interactions #Spectroscopy and Quantum Chemical Studies

paper · pdf · doi:10.48550/arxiv.1912.04810

openalex publication_date 2019/11/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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 Lüscher's method.

Cited by

• Pion photoproduction of nucleon excited states with Hamiltonian effective field theory
• Modified Lüscher zeta-function and the modified effective range expansion in the presence of a long-range force

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