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arXiv · 1311.0552

Light-front zero-mode issue on the vector meson decay constant

Ho-Meoyng Choi·Chueng-Ryong Ji
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Abstract

We discuss the light-front zero-mode issue in the light-front quark model (LFQM) prediction of a vector meson decay constant from the perspective of the vacuum fluctuation consistent with the chiral symmetry of QCD. We extend the exactly solvable manifestly covariant Bethe-Salpeter model calculation to the more phenomenologically accessible realistic LFQM and present a self-consistent covariant description of the vector meson decay constant analyzing the twist-2 and twist-3 quark-antiquark distribution amplitudes with even chirality.

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Ho-Meoyng Choi, Chueng-Ryong Ji. 2013-11-04. Light-front zero-mode issue on the vector meson decay constant. https://doi.org/10.1007/s00601-013-0789-8

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