Meson Electro-Magnetic Form Factors in an Extended Nambu--Jona-Lasinio model including Heavy Quark Flavors

Abstract

Based on an extended NJL model including heavy quark flavors, we calculate the form factors of pseudo-scalar and vector mesons. After take into account of the vector-meson-dominance effect which introduce a form factor correction to the quark vector coupling vertices, the form factors and electric radii of ${\pi }^{+}$ and $K^{+}$ of pseudo-scalar meson in light flavor sector fit the experimental data well. Also the magnetic moments of light vector meson ${\rho }^{+}$ and $K^{\ast +}$ are comparable with other theoretical calculation. The form factors in light-heavy flavor sector are presented to confront with future experiments or theoretical calculations.

References in corpus (5)

• Vector meson form factors and their quark-mass dependence
• Pseudoscalar and vector meson form factors from lattice QCD
• Magnetic moments of vector, axial, and tensor mesons in lattice QCD
• Magnetic moments of mesons
• Electroweak form factors of heavy-light mesons -- a relativistic point-form approach

Cited by in corpus (10)

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• Radiative decays and magnetic moments of the predicted $B_c$-like molecules
• The electromagnetic form factors of heavy-light pseudo-scalar and vector mesons
• Isospin violating decay $D_s^{\ast }\to D_s{\pi }^0$ in chiral perturbation theory
• Multipole Moments of Heavy Vector and Axial-Vector Mesons in QCD
• Valence quark distribution of light $\rho$ and heavy $J/\psi$ vector mesons in light-cone quark model
• Quadrupole moments of spin-1 systems: the rho meson, the S-wave deuteron and some general constraints