Photon distribution amplitudes and light-cone wave functions in chiral quark models

  title={Photon distribution amplitudes and light-cone wave functions in chiral quark models},
  author={Alexander E. Dorokhov and Wojciech Broniowski and Enrique Ruiz Arriola},
  journal={Physical Review D},
The leading- and higher-twist distribution amplitudes and light-cone wave functions of real and virtual photons are analyzed in chiral quark models. The calculations are performed in the nonlocal quark model based on the instanton picture of the QCD vacuum, as well as in the spectral quark model and the Nambu\char21{}Jona-Lasinio model with the Pauli-Villars regulator, which both treat interaction of quarks with external fields locally. We find that in all considered models the leading-twist… Expand
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