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arXiv · 1005.1673

Space-and Time-like Electromagnetic Kaon Form Factors

Udit Raha·Hiroaki Kohyama
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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 $J/ψ$ decays.

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Udit Raha, Hiroaki Kohyama. 2010-05-10. Space-and Time-like Electromagnetic Kaon Form Factors. https://doi.org/10.1103/physrevd.82.114012

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