Volume Effects on the Method of Extracting Form Factors at Zero Momentum
High Energy Physics - Lattice
2014-09-23 v2 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
The Rome method allows one to extract form factors using lattice computations performed strictly at zero momentum. We investigate the size of finite volume effects resulting from this method. As a test case, we focus on the pion charge radius and show how to ascertain the finite volume effect with the aid of chiral perturbation theory. The framework developed can easily be generalized to account for modified infrared physics of other low-energy matrix elements extracted at zero momentum.
Keywords
Cite
@article{arxiv.1409.5769,
title = {Volume Effects on the Method of Extracting Form Factors at Zero Momentum},
author = {Brian C. Tiburzi},
journal= {arXiv preprint arXiv:1409.5769},
year = {2014}
}
Comments
7 pages, talk given at the 32nd International Symposium on Lattice Field Theory, 23-28 June, 2014, Columbia University New York, NY