Search for $\Omega (2012)\to K\Xi (1530)\to K\pi \Xi$ at Belle

Abstract

Using data samples of $e^{+}{e}^{-}$ collisions collected at the ${\rm Y}(1S)$, ${\rm Y}(2S)$, and ${\rm Y}(3S)$ resonances with the Belle detector, we search for the three-body decay of the $\Omega (2012)$ baryon to $K\pi \Xi$. This decay is predicted to dominate for models describing the $\Omega (2012)$ as a $K\Xi (1530)$ molecule. No significant $\Omega (2012)$ signals are observed in the studied channels, and 90\% credibility level upper limits on the ratios of the branching fractions relative to $K\Xi$ decay modes are obtained.

arXiv comment16 pages, 5 figures

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Cited by in corpus (20)

• QCD and the Strange Baryon Spectrum
• $\Omega$ baryon spectrum and their decays in a constituent quark model
• Molecular picture for the $\Omega (2012)$ revisited
• Theoretical study of the $\Omega (2012)$ state in the ${\Omega }_c^0\to {\pi }^{+}\Omega (2012{)}^{-}\to {\pi }^{+}(\bar{K}\Xi {)}^{-}$ and ${\pi }^{+}(\bar{K}\Xi \pi {)}^{-}$ decays
• Spectroscopic Study of Strangeness=-3 ${\Omega }^{-}$ Baryon
• Interpretation of the ${\Omega }_c\to {\pi }^{+}\Omega (2012)\to {\pi }^{+}(\bar{K}\Xi )$ relative to ${\Omega }_c\to {\pi }^{+}\bar{K}\Xi$ from the $\Omega (2012)$ molecular perspective
• Can $\Omega (2012)$ be explained as a molecular state?
• Strong decays of the hadronic molecule ${\Omega }^{\ast }(2012)$
• Reanalysis of the newly observed ${\Omega }^{\ast }$ state in hadronic molecule model
• Analysis of $\Omega (2012)$ as a molecule in the chiral quark model
• Further understanding the nature of $\Omega (2012)$ within a chiral quark model
• Understanding the nature of $\Omega (2012)$ in a coupled-channel approach
• 70 Years of Hyperon Spectroscopy: A review of strange $\Xi$, $\Omega$ baryons, and the spectrum of charmed and bottom baryons
• Identifying triple-strangeness $\Omega$ hyperons in light of recent experimental results
• Evidence for Two Excited ${\Omega }^{-}$ Hyperons
• Structure of the ${\Omega }^{-}(2012)$ with Hamiltonian Effective Field Theory
• Measurement of the Resonant and Non-Resonant Branching Ratios in ${\Xi }_c^0\to {\Xi }^0{K}^{+}{K}^{-}$
• Radiative decays of the $\Omega (2012)$ as a hadronic molecule
• Structure of the $\Omega$ baryon and the kaon cloud
• Search for $B^0\to K_S^0{K}_S^0\gamma$ decays at Belle