Electromagnetic Corrections in Partially Quenched Chiral Perturbation Theory

Details Electromagnetic Corrections in Partially Quenched Chiral Perturbation Theory Electromagnetic Corrections in Partially Quenched Chiral Perturbation Theory

2006-10-30

arxiv.org/abs/hep-lat/0610127v1

Phys.Rev.D75:014505,2007

Physics

High Energy Physics

High Energy Physics - Lattice

11 pages

Scientific paper

10.1103/PhysRevD.75.014505

We introduce photons in Partially Quenched Chiral Perturbation Theory and calculate the resulting electromagnetic loop-corrections at NLO for the charged meson masses and decay constants. We also present a numerical analysis to indicate the size of the different corrections. We show that several phenomenologically relevant quantities can be calculated consistently with photons which couple only to the valence quarks, allowing the use of gluon configurations produced without dynamical photons.

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