Photoproduction of Xi off nucleons

Abstract

The photoproduction reaction $\gamma N\to KK\Xi$ is investigated based on a relativistic meson-exchange model of hadronic interactions. The production amplitude is calculated in the tree-level approximation from relevant effective Lagrangians, whose (coupling constant) parameters are mostly fixed from the empirical data and/or quark models together with SU(3) symmetry considerations. Gauge invariance of the resulting amplitude is maintained by introducing the contact currents by extending the gauge-invariant approach of Haberzettl for one-meson photoproduction to two-meson photoproduction. The role of the intermediate low-lying hyperons and of the intermediate higher-mass hyperon resonances are analyzed in detail. In particular, the basic features of the production of ${\Xi }^{-}(1318)$ in $\gamma p\to K^{+}{K}^{+}{\Xi }^{-}$ and their possible manifestations in the forthcoming experimental data are discussed.

18 pages, 17 figures, REVTeX, 1 figure added, to appear in Phys. Rev. C

Cited by in corpus (9)

• Xi and Omega baryons in the Skyrme model
• Nucleon and Delta resonances in K Sigma(1385) photoproduction from nucleons
• $\bar{K}+N\to K+\Xi$ reaction and $S=-1$ hyperon resonances
• Role of high-spin hyperon resonances in the reaction of $\gamma p\to K^{+}{K}^{+}{\Xi }^{-}$
• 70 Years of Hyperon Spectroscopy: A review of strange $\Xi$, $\Omega$ baryons, and the spectrum of charmed and bottom baryons
• Double-strangeness exchange reactions in a hybrid Regge-plus-resonance approach
• Gauge invariance of meson photo- and electroproduction currents revisited
• Radiative decays of the $\Omega (2012)$ as a hadronic molecule
• Momentum dependence of near-threshold photoproduction of ${\Xi }^{-}$ hyperons off nuclei and their properties in the nuclear medium