Light-Meson Two-Photon Decays in Full QCD
High Energy Physics - Lattice
2010-01-21 v1
Abstract
We present a study of two-photon decays of light mesons, focusing on the neutral pion decay. This important process highlights the effects of the axial anomaly in QCD but has been little studied on the lattice. By applying the Lehmann-Symanzik-Zimmermann (LSZ) reduction formula, we reconstruct the electromagnetic matrix elements from three-point vector-vector Green functions calculated on 2+1-flavor isotropic clover lattices.
Keywords
Cite
@article{arxiv.0810.5550,
title = {Light-Meson Two-Photon Decays in Full QCD},
author = {Saul D. Cohen and Huey-Wen Lin and Jozef Dudek and Robert G. Edwards},
journal= {arXiv preprint arXiv:0810.5550},
year = {2010}
}
Comments
7 pages, 4 figures. Talk given at the XXVI International Symposium on Lattice Field Theory (LATTICE 2008), July 14-19, 2008, Williamsburg, Virginia, USA