What Can we Learn about $\Theta$ Baryon from Unified Picture for Hadron Spectra

Abstract

An analysis of the recent results from several experimental groups reported observation of a new $\Theta$ baryon has been presented from a view point of the unified picture for hadron spectra developed early \cite{12}. It is shown that, in fact, two different $\Theta$ baryons have been discovered. We have also established that both $\Theta$ baryons are excellently incorporated in the unified picture for hadron spectra. It is argued that the presented experimental material revealed an existence of the positive srangeness $\Theta$ partners for the observed $\Lambda$ and $\Sigma$ states with negative strangeness as we predicted.

arXiv comment28 pages, 13 figures, 2 Tables; misprint removed; analysis of ZEUS and DUBNA PBC experiments added, discussion extended, references added

References in corpus (8)

• Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
• Observation of an Exotic $S=+1$ Baryon in Exclusive Photoproduction from the Deuteron
• Evidence for the positive-strangeness pentaquark ${\Theta }^{+}$ in photoproduction with the SAPHIR detector at ELSA
• Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton
• Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction
• Evidence for a narrow baryonic state decaying to K0s-p and K0s-pbar in deep inelastic scattering at HERA
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Cited by in corpus (3)

• The SELEX Measurements in the Unified Picture for Hadron Spectra
• The Nucleon and Delta Baryons in the Unified Picture for Hadron Spectra
• The NA49 Experiment at CERN: Spectral Analysis in the Unified Picture for Hadron Spectra