The study of leading twist light cone wave function of η_c meson

Abstract

This paper is devoted to the study of leading twist light cone wave function of ${\eta }_c$ meson. The moments of this wave function have been calculated within three approaches: potential models, nonrelativistic QCD and QCD sum rules. Using the results obtained within these approaches the model for the light cone wave function of leading twist has been proposed. Being scale dependent light cone wave function has very interesting properties at scales $\mu >m_c$: improvement of the accuracy of the model, appearance of relativistic tail and violation of nonrelativistic QCD velocity scaling rules. The last two properties are the properties of real leading twist light cone wave function of ${\eta }_c$ meson.

14 pages, 3 figures; minor changes

References in corpus (2)

• Potential-model calculation of an order-v^2 NRQCD matrix element
• The processes $e^{+}{e}^{-}\to J/\Psi {\chi }_{c0},\Psi (2S){\chi }_{c0}$ at $\sqrt{s}=10.6$GeV in the framework of light cone formalism

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• The study of leading twist light cone wave functions of J/Psi meson
• Interpretations for the X(4160) observed in the double charm production at B factories
• Refactorizing NRQCD short-distance coefficients in exclusive quarkonium production
• Perturbative QCD analysis of exclusive J/ψ+η_c production in e^+e^- annihilation
• Leading twist distribution amplitudes of P-wave nonrelativistic mesons
• Which hadronic decay modes are good for ${\eta }_b$ searching: double $J/\psi$ or something else?
• The study of leading twist light cone wave functions of 2S state charmonium mesons
• Study of quark distribution amplitudes of 1S and 2S heavy quarkonium states
• The study of double vector charmonium mesons production at B-factories within light cone formalism
• Radiative and leptonic decays of the pseudoscalar charmonium state ${\eta }_c$