Isoscalar and isovector kaon form factors from $e^{+}{e}^{-}$ and $\tau$ data

Abstract

The recent precise measurements of the $e^{+}{e}^{-}\to K_S{K}_L$ and $e^{+}{e}^{-}\to K^{+}{K}^{-}$ cross sections and the hadronic spectral function of the ${\tau }^{-}\to K^{-}{K}_S{\nu }_{\tau }$ decay are used to extract the isoscalar and isovector electromagnetic kaon form factors and their relative phase in a model independent way. The experimental results are compared with a fit based on the vector-meson-dominance model.

9 pages, 6 figures

References in corpus (6)

• Cross sections for the reactions $e^{+}{e}^{-}\to K_S^0{K}_L^0$, $K_S^0{K}_L^0{\pi }^{+}{\pi }^{-}$, $K_S^0{K}_S^0{\pi }^{+}{\pi }^{-}$, and $K_S^0{K}_S^0{K}^{+}{K}^{-}$ from events with initial-state radiation
• Updated measurement of the $e^{+}{e}^{-}\to \omega {\pi }^0\to {\pi }^0{\pi }^0\gamma$ cross section with the SND detector
• Study of the process $e^{+}{e}^{-}\to K_S^0{K}_L^0$ in the center-of-mass energy range 1004--1060 MeV with the CMD-3 detector at the VEPP-2000 $e^{+}{e}^{-}$ collider
• 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 spectral function for the ${\tau }^{-}\to K^{-}{K}_S{\nu }_{\tau }$ decay

Cited by in corpus (10)

• Kaon electromagnetic form factors in dispersion theory
• What can we learn about light-meson interactions at electron-positron colliders?
• Will the subprocesses $\rho (770,1450{)}^0\to K^{+}{K}^{-}$ contribute large branching fractions for $B^{\pm }\to {\pi }^{\pm }{K}^{+}{K}^{-}$ decays?
• Resonances in $e^{+}{e}^{-}$ annihilation near 2.2 GeV
• Contributions for the kaon pair from $\rho (770)$, $\omega (782)$ and their excited states in the $B\to K\bar{K}h$ decays
• Resonance contributions $\varphi (1020,1680)\to K\bar{K}$ for the three-body decays $B\to K\bar{K}h$
• Dispersive analysis of the Primakoff reaction $\gamma K\to K\pi$
• Contributions of the kaon pair from $\rho (770)$ for the three-body decays $B\to DK\bar{K}$
• Resonances $\rho (1450{)}^{+}$ and $\rho (1700{)}^{+}$ in $B\to DKK$ decays
• Resonances $\varphi (1020)$ and $\varphi (1680)$ contributions for the three-body decays $B^{+}\to D_s^{+}K\bar{K}$