Space-and Time-like Electromagnetic Kaon Form Factors

Details Space-and Time-like Electromagnetic Kaon Form Factors Space-and Time-like Electromagnetic Kaon Form Factors

2010-05-10

arxiv.org/abs/1005.1673v1

Phys.Rev.D82:114012,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

32 pages, 7 figures

Scientific paper

10.1103/PhysRevD.82.114012

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.

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