Meson Decay Constants from the Valence Approximation to Lattice QCD

F. Butler; H. Chen; J. Sexton; A. Vaccarino; D. Weingarten

doi:10.1016/0550-3213(94)90232-1

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arXiv · hep-lat/9310009

Meson Decay Constants from the Valence Approximation to Lattice QCD

F. Butler·H. Chen·J. Sexton·A. Vaccarino·D. Weingarten

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Abstract

We evaluate $f_π/ m_ρ$, $f_K/ m_ρ$, $1/f_ρ$, and $ m_ϕ/(f_ϕ m_ρ)$, extrapolated to physical quark mass, zero lattice spacing and infinite volume, for lattice QCD with Wilson quarks in the valence (quenched) approximation. The predicted ratios differ from experiment by amounts ranging from 12\% to 17\% equivalent to between 0.9 and 2.8 times the corresponding statistical uncertainties.

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F. Butler, H. Chen, J. Sexton, A. Vaccarino, D. Weingarten. 1993-10-07. Meson Decay Constants from the Valence Approximation to Lattice QCD. https://doi.org/10.1016/0550-3213(94)90232-1

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