[01] N. Ghahramany, Physics Department, Shiraz University and Biruni Observatory, Shiraz, Iran. [02] H. Siami, Physics Department, Shiraz University and Biruni Observatory, Shiraz, Iran.

In this article it is attempted to separate σ_tot into longitudinal, σ_Land transverse, σ_T cross-sections and to calculate charged Kaon form factor. The Jlab 2001 (E98-108) data has been used and Rosenbluth separation technique is applied to charged kaon electroproduction at Q^2=1.9〖 and 2.35 (GeV/c)〗^2 in different energies. Data were taken at electron beam energies ranging from 3.40 to 5.75 (GeV).Charged kaon form factor is determined at Q^2=1.9〖 and 2.35 (GeV/c)〗^2 by using Chew-low technique and Regge model. Influence of the kaon pole on the cross-sections is investigated by adopting an off-shell form factor in the Regge model, which better describes the observed energy dependence of σ_T and σ_L.

Kaon Electroproduction, K⁺ Meson, Rosenbluth Separation, Form Factor, Regge Model, Born Model

[01] N. Ghahramany, M. Ghanatian, “Kaon electroproduction off proton”. Iranian Jour. Sci. Tech. A 29, 277 (2005). [02] G. Niculescu et al., “Longitudinal and transverse cross sections in the H(e, e′,K^+)Λ reaction”.Phys. Rev. Lett. 81, 1805 (1998). [03] N. Ghahramany, K. Rostami, and M. Ghanatian, “Charged pion form factor determination in the range of Q^2=0.6 ~ 1.6 〖(Gev/c)〗^2”, Commun. Theor. Phys. 42, 83 (2004). [04] R. A. Williams, C. R. Ji, and S. R. Cotanch, “Crossing and duality consistent study of Λ, Σ^0 and Λ (1405) production by kaon photoproduction and radiative capture”. Phys. Rev. C 43, 452 (1991). [05] R. A. Williams, C. R. Ji, and S. R. Cotanch, “Hyperon electroproduction in a crossing and duality constrained model”. Phys. Rev. C 43, 452 (1991). [06] J. C. David et al., “Electromagnetic production of associated strangeness”. Phys. Rev. C 53, 2613(1996). [07] C. J. Bebek et al., “Electroproduction of K^+meson along the virtual photon direction”. Phys. Rev. D 15, 594 (1977). [08] R. L. Workman, “Kaon photoproduction, Data consistency, coupling constant, and polarization observables”. Phys. Rev. C 44, 552 (1991). [09] R. A. Adelseck, L. E. Wright, “Electromagnetic production of kaon”. Phys. Rev. C 38, 1965 (1988). [10] M. Guidal, J. M. Laget, and M. Vanderhaeghen, “Pseudoscalar meson photoproduction at high energies: from the Regge regime to the hard scattering regime”. Phys. Lett. B 400, 6 (1997). [11] M. Guidal, J. M. Laget, and M. Vanderhaeghen, “Regge description of charged pseudoscalar meson electroproduction above the resonance region”. Phys. Rev. C 57, 1454 (1998). [12] R. C. E. Devenish et al., “Single π^+electroproduction at W= 2 (GeV) and the pion form factor”. Phys. Rev. D 5, 47(1972). [13] S. R. Amendolia et al., “A measurement of the kaon charge radius”. Phys. Lett. B 178, 435(1986). [14] P. Markowitz, M. Iodice, S. Frullani, C. C. Chang, and O. K. Baker, spokespersons, Jefferson Lab Experiment E98-108 (1998) [http://www. jlab. org/expprog/proposals/98/PR98-108. pdf]. [15] M. Coman et al., “Cross sections and Rosenbluth separations in H(e, e′, K^+)Λ up to Q^2 =2.35 〖(GeV/ c)〗^2”.Phys. Rev. C 81, 052201 (2010).