Connecting Matrix Elements to Multi-Hadron Form-Factors
Abstract
We discuss developments in calculating multi-hadron form-factors and transition processes via lattice QCD. Our primary tools are finite-volume scaling relations, which map spectra and matrix elements to the corresponding multi-hadron infinite-volume amplitudes. We focus on two hadron processes probed by an external current, and provide various checks on the finite-volume formalism in the limiting cases of perturbative interactions and systems forming a bound state. By studying model-independent properties of the infinite-volume amplitudes, we are able to rigorously define form-factors of resonances.
Cite
@article{arxiv.2111.01098,
title = {Connecting Matrix Elements to Multi-Hadron Form-Factors},
author = {Andrew W. Jackura},
journal= {arXiv preprint arXiv:2111.01098},
year = {2021}
}
Comments
11 pages, 6 figures, proceedings to the 38th International Symposium on Lattice Field Theory (LATTICE21), 26-30 July 2021, Zoom/Gather@Massachusetts Institute of Technology