Speaker
Dr
David Richards
(Jefferson Lab)
Description
We show how momentum-space derivatives of hadron form factors can be related to their coordinate space moments computed in lattice QCD through a Fourier Transform. The method provides a priori information about the Q^2 dependence of form factors. As a specific application of the method, we obtain the slope of the isovector form factor of the nucleon at the various Q^2 accessible on the lattice, and hence derive the isovector charge radius. The method has potential application to the calculation of other form factors, including those relevant to hadronic weak decays.
Primary author
Dr
Chia Cheng Chang
(Lawrence Berkeley National Laboratory)
Co-authors
Dr
Chris Bouchard
(William and Mary/Glasgow University)
Dr
David Richards
(Jefferson Lab)
Prof.
Kostas Orginos
(William and Mary / JLab)
