English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

We investigate the production of a cascade hyperon ($\Xi$) and bound $\Xi^-$hypernuclei in the $(K^-,K^+)$ reaction on proton and nuclear targets,respectively, within a covariant effective Lagrangian model. The $K^+\Xi^-$production vertex is described by excitation, propagation and decay of$\Lambda$ and $\Sigma$ resonance states in the initial collision of a $K^-$meson with a free or bound proton in the incident channel. The parameters ofthe resonance vertices are taken from previous studies and SU(3) symmetryconsiderations. The model is able to provide a good description of theavailable data on total and differential cross sections for the $p(K^-,K^+)\Xi^-$ reaction. The same mechanism was used to describe the hypernuclearproduction reactions $^{12}$C$(K^-,K^+)^{12}{/!/!/!_{/Xi^-}}$Be and$^{28}$Si$(K^-,K^+)^{28}{/!/!/!_{\Xi^-}}$Mg, where $\Xi$ bound state spinorscalculated within a phenomenological model have been employed. Both theelementary and hypernuclear production cross sections are dominated by thecontributions from the $\Lambda$(1520) intermediate resonant state. The beammomentum dependence of the $0^\circ$ differential cross sections for theformation of the $\Xi$ hypernuclei is found to be remarkably different fromwhat has been observed previously in the impulse approximation modelcalculations

$\Xi^-$ hyperon and hypernuclear production in the $(K^-,K^+)$ reaction on nucleon and nuclei in a field theoretical model