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

Abstract

Although the meson decay amplitude described by a two-point function may be regarded as one of the simplest possible physical observable, it is interesting that this apparently simple amplitude bears abundant fundamental informations on QCD vacuum dynamics and chiral symmetry. The light-front zero-mode issue of the vector meson decay constant $f_V$ is in this respect highly non-trivial and deserves careful analyses. We discuss the zero-mode issue in the light-front quark model (LFQM) prediction of $f_V$ 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 $f_V$ analyzing the twist-2 and twist-3 quark-antiquark distribution amplitudes with even chirality.

16 pages, 4 figures

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Cited by in corpus (28)

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• Consistency of the light-front quark model with chiral symmetry in the pseudoscalar meson analysis
• Decay constants of pseudoscalar and vector mesons with improved holographic wavefunction
• Semileptonic $B$ and $B_s$ decays involving scalar and axial-vector mesons
• Revisiting the form factors of $P\to V$ transition within the light-front quark models
• Mixing effects on 1S and 2S state heavy mesons in the light-front quark model
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• Twist-2 Pseudoscalar and Vector Meson Distribution Amplitudes in Light-Front Quark Model with Exponential-type Confining Potential
• Self-consistent light-front quark model analysis of $B\to D\ell {\nu }_{\ell }$ transition form factors
• Tensor form factors of $P\to P,S,V$ and $A$ transitions within the standard and the covariant light-front approaches
• Pseudoscalar meson decay constants and distribution amplitudes up to twist-4 in the light-front quark model
• Systematic twist expansion of $({\eta }_c,{\eta }_b)\to {\gamma }^{\ast }\gamma$ transition form factors in light-front quark model
• Self-consistent $M1$ radiative transitions of excited $B_c$ and heavy quarkonia with different polarizations in the light-front quark model
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• Unambiguous Extraction of the Electromagnetic Form Factors for Spin-1 Particles on the Light-Front
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• Study of $B_{u,d,s}\to K_0^{\ast }(1430)P$ and $K_0^{\ast }(1430)V$ decays within QCD factorization
• Light-front zero-mode issue on the vector meson decay constant
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• Spectroscopy of excited quarkonium states in the light-front quark model
• $B_c$ to $A$ Transition Form Factors and Semileptonic Decays in Self-consistent Covariant Light-front Approach
• Twist-3 Distribution Amplitudes of Pion in the Light-Front Quark Model
• Light-Front Quark Model Analysis of Meson-Photon Transition Form Factor
• Light-Front Quark Model Phenomenology Consistent with Chiral Symmetry
• Self-consistent covariant description of twist-3 distribution amplitude of a pseudoscalar meson in the light-front quark model