Lattice Computations of the Pion Form Factor
LHP Collaboration: Frederic D. R. Bonnet (1, 2), Robert G. Edwards, (1), George T. Fleming (1, 3), Randy Lewis (2), David G. Richards (1) ((1), Jefferson Lab, (2) University of Regina, (3) Yale University)
TL;DR
This paper presents lattice QCD computations of the pion electromagnetic form factor using different fermion discretizations, demonstrating methods applicable to related meson transition form factors.
Contribution
It introduces computational techniques for pion form factors with domain wall and Wilson fermions, extendable to other meson transition form factors.
Findings
Computed pion form factors with domain wall and Wilson fermions.
Results demonstrate the feasibility of these methods for meson form factor calculations.
Methods can be extended to rho-to-gamma-pi transition form factors.
Abstract
We report on a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present results computed with domain wall valence fermions on MILC asqtad lattices, as well as with Wilson fermions on quenched lattices. The methods can easily be extended to rho-to-gamma-pi transition form factors.
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