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/

Global: Zendy Plus annual

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

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigate the decay and the production mechanism of the resonanceX(1812) recently observed in the $\jp\to\gamma X(1812), X(1812)\to\omega\phi$at BESII. The decay widths of $X(1812)\to\eta\eta'$,$ \eta\eta$,$ \omega\phi$,$K^+K^-$,$ \rho^+\rho^-$, $ \omega\omega$,$ K^{*+}K^{*-}$ and $\pi^+\pi^-$ areevaluated based on the scenario of the X(1812) as a candidate of $(\ksks)$molecule. It turns out that the quark exchange mechanism plays an importantrole in the understanding of the large decay width for the$X(1812)\to\omega\phi$. It is also found that the decay widths for$X(1812)\to\eta\eta'$ and $\eta\eta$ are enhanced by the quark exchangemechanism. These channels are suggested to be the tools to test the molecularscenario in experiment. The branching fraction of $Br(X\to\omega\phi)$ isevaluated to be about 4.60%. Searches for additional evidence about the X(1812)in $\jp$ radiative decays are reviewed. In the molecular scenario, the X(1812)production rate is also evaluated to be $\Gamma(\jp\to\gammaX)/\Gamma(\jp\to\gamma K^{*+}K^{*-})=2.13^{+7.41}_{-1.85}$, which is close tothe measured value $2.83\pm0.92$.Comment: 4 figures, 10 page

Study ofX(1812) as a (K^*\bar{K}^*) molecular state

Study ofX(1812) as a (K^\bar{K}^) molecular state