Low energy process $e^{+}{e}^{-}\to K^{+}{K}^{-}$ in the extended Nambu-Jona-Lasinio model

Abstract

In the extended Nambu-Jona-Lasinio model, the process of production of charged kaon pair on colliding electron-positron beams in the energy interval 1 - 1.7 GeV is described. In studying of this process, we take into account the contact terms when the pairs $K^{+}$ $K^{-}$ are generated by an intermediate photon, and processes with intermediate vector mesons $\rho$, $\omega$ and $\varphi$ in the ground and in the first radially excited states. The results obtained here are compared with experimental data recently received in Novosibirsk and in Stanford.

8 pages, 4 figures

References in corpus (7)

• Measurement of the ${\mathbf{e}}^{+}{\mathbf{e}}^{-}\to {\mathbf{K}}^{+}{\mathbf{K}}^{-}$ cross section in the energy range $\sqrt{\mathbf{s}}=1.05-2.0$ GeV
• Study of the process $e^{+}{e}^{-}\to K^{+}{K}^{-}$ in the center-of-mass energy range 1010--1060~MeV with the CMD-3 detector
• Measurement of the e+e- -> K+K- cross section in the energy range s**(1/2) = 1.04 - 1.38 GeV with the SND detector in the experiment at the VEPP-2M e+e- collider
• Electromagnetic form factors of charged and neutral kaons in an extended vector-meson-dominance model
• Space-and Time-like Electromagnetic Kaon Form Factors
• Production of $\rho (770)$, $\eta$ pairs in the decays $\rho (1450)\to \rho (770)\eta$, $\tau \to \rho (770)\eta {\nu }_{\tau }$, and in the process of $e^{+}{e}^{-}\to \rho (770)\eta$ in the Extended Nambu - Jona-Lasinio model
• The processes $e^{+}{e}^{-}\to K^{\pm }(K^{\ast \mp }(892),K^{\ast \mp }(1410))$ and $e^{+}{e}^{-}\to (\eta ,{\eta }^{{}^{\prime }}(958))(\varphi (1020),\varphi (1680))$ in the extended Nambu-Jona-Lasinio model