Space-and Time-like Electromagnetic Kaon Form Factors

Abstract

A simultaneous investigation of the space- and time-like electromagnetic form factors of the charged kaon is presented within the framework of light-cone QCD, with perturbative $k_T$-factorization including Sudakov suppression. The effects of power suppressed sub-leading twists and the genuine ``soft'' QCD corrections turn out to be dominant at low- and moderate-energies/momentum transfers $Q^2$. Our predictions agree well with the available moderate-energy experimental data, including the recent results from the CLEO measurements and certain estimates based on the phenomenological analyses of $J/\psi$ decays.

32 pages, 7 figures

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Cited by in corpus (6)

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• Time-like pion electromagnetic form factors in $k_T$ factorization with the Next-to-leading-order twist-3 contribution
• Pseudoscalar mesons with symmetric bound state vertex functions on the light front
• Pseudoscalar meson decay constants and distribution amplitudes up to twist-4 in the light-front quark model
• Low energy process $e^{+}{e}^{-}\to K^{+}{K}^{-}$ in the extended Nambu-Jona-Lasinio model
• Twist-3 contributions to $\gamma \gamma \to {\pi }^{+}{\pi }^{-},K^{+}{K}^{-}$ processes in perturbative QCD approach