23–28 Jun 2014
Columbia University
US/Eastern timezone

Volume effects on the method of extracting form factors at zero momentum

23 Jun 2014, 16:50
20m
301 Pupin

301 Pupin

Speaker

Prof. Brian Tiburzi (City College of New York)

Description

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.

Primary author

Prof. Brian Tiburzi (City College of New York)

Presentation materials