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arXiv · hep-lat/0110220

Pion Decay Constant, $Z_A$ and Chiral Log from Overlap Fermions

S. J. Dong·T. Draper·I. Horvath·F. X. Lee·J. B. Zhang
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Abstract

We report our calculation of the pion decay constant $f_π$, the axial renormalization constant $Z_A$, and the quenched chiral logarithms from the overlap fermions. The calculation is done on a quenched $20^4$ lattice at $a=0.148$ fm using tree level tadpole improved gauge action. The smallest pion mass we reach is about 280 MeV. The lattice size is about 4 times the Compton wavelength of the lowest mass pion.

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S. J. Dong, T. Draper, I. Horvath, F. X. Lee, J. B. Zhang. 2001-10-30. Pion Decay Constant, $Z_A$ and Chiral Log from Overlap Fermions. https://doi.org/10.1016/s0920-5632(01)01708-x

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