Finite-volume matrix elements in multi-boson states
William Detmold, Michael Flynn
TL;DR
This paper develops theoretical relations to extract matrix elements of multi-boson systems from finite-volume lattice QCD calculations, aiding the study of many-pion and many-kaon systems.
Contribution
It derives new relations for extracting multi-hadron matrix elements in finite-volume QCD, specifically for systems of identical, weakly interacting bosons without spin.
Findings
Derived relations for multi-boson matrix elements in finite volume
Applicable to many-pion and many-kaon systems in lattice QCD
Facilitates physical quantity extraction from lattice measurements
Abstract
We derive the relations necessary for the extraction of matrix elements of multi-hadron systems from finite-volume QCD calculations. We focus on systems of weakly interacting identical particles without spin. These results will be useful in extracting physical quantities from lattice QCD measurements of such matrix elements in many-pion and many-kaon systems
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Taxonomy
TopicsPhysics of Superconductivity and Magnetism · Quantum Chromodynamics and Particle Interactions · Cold Atom Physics and Bose-Einstein Condensates