Lattice Computations of the Pion Form Factor

2); (2) University of Regina; 3); (3) Yale University); David G. Richards (1) ((1) Jefferson Lab; George T. Fleming (1; LHP Collaboration: Frederic D. R. Bonnet (1; Randy Lewis (2); Robert G. Edwards (1)

arxiv: hep-lat/0411028 · v1 · pith:SSTCMOQHnew · submitted 2004-11-20 · ✦ hep-lat · hep-ph· nucl-th

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

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(3) Yale University)

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classification ✦ hep-lat hep-phnucl-th

keywords formcomputefactorfactorsfermionslatticespionasqtad

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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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Lattice Computations of the Pion Form Factor

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