Mixing angles and electromagnetic properties of ground state pseudoscalar and vector meson nonets in the light-cone quark model

Ho Meoyng Choi, Chueng Ryong Ji

Research output: Contribution to journalArticlepeer-review

149 Scopus citations

Abstract

Both the mass spectra and the wave functions of the light pseudoscalar (Formula presented) and vector(Formula presented) mesons are analyzed within the framework of the light-cone constituent quark model. A Gaussian radial wave function is used as a trial function of the variational principle for a QCD-motivated Hamiltonian which includes not only the Coulomb plus confining potential but also the hyperfine interaction to obtain the correct (Formula presented)-(Formula presented) splitting. For the confining potential, we use the (1) harmonic oscillator potential and (2) linear potential and compare the numerical results for these two cases. The mixing angles of (Formula presented)-(Formula presented) and (Formula presented)-(Formula presented) are predicted and various physical observables such as decay constants, charge radii, and radiative decay rates, etc., are calculated. Our numerical results in the two cases (1) and (2) are overall not much different from each other and are in good agreement with the available experimental data.

Original languageEnglish
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume59
Issue number7
DOIs
StatePublished - 5 Mar 1999

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