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

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.

6 pages, talk presented at Light Cone 2013, Skiathos, Greece, 20-24 May 2013

References in corpus (2)

• Semileptonic and radiative decays of the B_c meson in light-front quark model
• Self-consistent covariant description of vector meson decay constants and chirality-even quark-antiquark distribution amplitudes up to twist-3 in the light-front quark model

Cited by in corpus (6)

• Charmed ${\Omega }_c$ weak decays into $\Omega$ in the light-front quark model
• Two-particle twist-3 distribution amplitudes of the pion and kaon in the light-front quark model
• Testing the W-exchange mechanism with two-body baryonic B decays
• Weak Radiative Decays of Anti-triplet Bottomed Baryons in Light-Front Quark Model
• The relation between instant and light-front formulations of quantum field theory
• Heavy quark symmetry of ${\Lambda }_b^0$ decays in quark models