Flavor Twisted Boundary Conditions, Pion Momentum, and the Pion Electromagnetic Form Factor

Details Flavor Twisted Boundary Conditions, Pion Momentum, and the Pion Electromagnetic Form Factor Flavor Twisted Boundary Conditions, Pion Momentum, and the Pion Electromagnetic Form Factor

2006-10-18

arxiv.org/abs/hep-lat/0610103v2

Phys.Lett.B645:314-321,2007

Physics

High Energy Physics

High Energy Physics - Lattice

15 pages, 8 figures, revisions to text, refs added

Scientific paper

10.1016/j.physletb.2006.12.041

We investigate the utility of partially twisted boundary conditions in lattice calculations of meson observables. For dynamical simulations, we show that the pion dispersion relation is modified by volume effects. In the isospin limit, we demonstrate that the pion electromagnetic form factor can be computed on the lattice at continuous values of the momentum transfer. Furthermore, the finite volume effects are under theoretical control for extraction of the pion charge radius.

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