Radiative $\pi \rho$ and $\pi \omega$ transition form factors in a light-front constituent quark model

Abstract

The form factors of the $\pi \rho$ and $\pi \omega$ radiative transitions are evaluated within a light-front constituent quark model, using for the first time the eigenfunctions of a light-front mass operator reproducing the meson mass spectrum and including phenomenological Dirac and Pauli quark form factors in the one-body electromagnetic current operator. The sensitivity of the transition form factors both to the meson wave functions and to the constituent quark form factors is illustrated. It is shown that the measurement of the $\pi \rho$ and $\pi \omega$ radiative transitions could help in discriminating among various models of the meson structure.

arXiv comment9 pages, latex, 4 figures available as separate .uu file, to appear in Phys. Lett. B

References in corpus (4)

• Nonperturbative Light-Front QCD
• Electromagnetic form factors of the $\rho$ meson in a light-front constituent quark model
• Soft contribution to the pion form factor from light-cone QCD sum rules
• Hard Constituent Quarks and Electroweak Properties of Pseudoscalar Mesons

Cited by in corpus (28)

• Explicitly Covariant Light-Front Dynamics and Relativistic Few-Body Systems
• The deuteron: structure and form factors
• Mixing angles and electromagnetic properties of ground state pseudoscalar and vector meson nonets in the light-cone quark model
• Relativistic constituent quark model with infrared confinement
• Rare exclusive semileptonic b -> s transitions in the Standard Model
• A pure S-wave covariant model for the nucleon
• Pair term in the Electromagnetic Current within the Front-Form Dynamics: Spin-0 Case
• Charge form factor of $\pi$ and $K$ mesons
• Nonvanishing zero modes in the light-front current
• Electromagnetic Structure of Few-Nucleon Ground States
• Electroproduction of the Roper resonance and the constituent quark model
• Weak Decay Form Factors of Heavy Pseudoscalar Mesons within a Light-Front Constituent Quark Model
• Magnetic properties of ground-state mesons
• Rare decays B -> (K, K*) (l+ l-, nu bar{nu}) in the quark model
• Space-like and time-like pion-rho transition form factors in the light-cone formalism
• Poincare Invariant Algebra From Instant to Light-Front Quantization
• Calculation of the Isgur-Wise function from a light-front constituent quark model
• Conformal Symmetry and Pion Form Factor: Soft and Hard Contributions
• Light-Cone Quark Model Analysis of Radially Excited Pseudoscalar and Vector Mesons
• Constituent quarks, chiral symmetry, and chiral point of the constituent quark model
• Investigating the ratio of CKM matrix elements $|V_{ub}|/|V_{cb}|$ from semileptonic decay $B_s^0\to K^{-}{\mu }^{+}{\nu }_{\mu }$ and kaon twist-2 distribution amplitude
• Covariant Spectator Theory of $np$ scattering: Deuteron form factors
• A connection between inclusive semileptonic decays of bound and free heavy quarks
• Multipole Moments of Heavy Vector and Axial-Vector Mesons in QCD
• $\omega -\pi {\gamma }^{\ast }$ transition form factor in proton-proton collisions
• Space- and time-like form factors for $\omega \to \pi {\gamma }^{\ast }$ and $K^{\ast }\to K{\gamma }^{\ast }$ in light-front quark model
• Extended van Royen-Weisskopf formalism for lepton-antilepton meson decay widths within non-relativistic quark models
• Lower bound to the mass of a relativistic three-boson system in the light-cone