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2008

Light-Meson Two-Photon Decays in Full QCD

Cohen, Saul D., Lin, Huey-Wen, Dudek, Jozef et al.

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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.

Light-Meson Two-Photon Decays in Full QCD · Around

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X.-D. Ji and C. Jung, Phys. Rev. Lett. 86
2001
Earlier work this paper cites.
X.-D. Ji and C. Jung, Phys. Rev. D64
2001
Earlier work this paper cites.

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J. L. Goity, A. M. Bernstein, and B. R. Holstein, Phys. Rev. D66
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R. G. Edwards and B. Joo (SciDAC), Nucl. Phys. Proc. Suppl. 140
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2005
Cited alongside, same era.

Then

J. J. Dudek and R. G. Edwards, Phys. Rev. Lett. 97
2006
Later among the works it cites.
S. Aoki et al. (PACS-CS) (2008), 0807.1661
2008
Closest in time.

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