Light-cone quark model predictions for radiative meson decays

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The authors investigate the radiative decays of pseudoscalar ({pi}, {Kappa}, {eta}, {eta}{prime}), vector ({rho}, {Kappa}{sup *}, {omega}, {phi}) and axial vector ({Alpha}{sub 1}) mesons using a simple relativistic constituent quark model. For both simplicity and relativity, they take advantage of the distinguished features in the light-cone quantization method; (1) the Fock-state expansion of meson wavefunctions are not contaminated by the vacuum fluctuation, (2) the problem of assigning quantum numbers J{sup PC} to mesons is circumvented by the Melosh transformation. Except the well-known constituent quark masses of (u,d,s) quarks and the spin-averaged meson masses, the only parameter in the model is ... continued below

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Choi, H.M. & Ji, Chueng-Ryong June 1, 1996.

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The authors investigate the radiative decays of pseudoscalar ({pi}, {Kappa}, {eta}, {eta}{prime}), vector ({rho}, {Kappa}{sup *}, {omega}, {phi}) and axial vector ({Alpha}{sub 1}) mesons using a simple relativistic constituent quark model. For both simplicity and relativity, they take advantage of the distinguished features in the light-cone quantization method; (1) the Fock-state expansion of meson wavefunctions are not contaminated by the vacuum fluctuation, (2) the problem of assigning quantum numbers J{sup PC} to mesons is circumvented by the Melosh transformation. Except the well-known constituent quark masses of (u,d,s) quarks and the spin-averaged meson masses, the only parameter in the model is the gaussian parameter Beta which determines the broadness (or sharpness) of radial wavefunction. Their overall predictions of pseudoscalar, vector and axial vector meson radiative decay processes are remarkably in a good agreement with the experimental data.

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1664 Kilobytes pages

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  • Report No.: DOE/ER/40150-1625
  • Report No.: JLAB-THY-96-05
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 756801
  • Archival Resource Key: ark:/67531/metadc709452

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  • June 1, 1996

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  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 5, 2016, 9:47 p.m.

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Choi, H.M. & Ji, Chueng-Ryong. Light-cone quark model predictions for radiative meson decays, article, June 1, 1996; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc709452/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.