Crystal Barrel Results on Two-Body Decays of the Scalar Glueball
Stefan Spanier (University of Zuerich, Switzerland)
TL;DR
The paper reports on Crystal Barrel's analysis of scalar meson resonances, identifying the f0(1500) as a scalar glueball candidate and providing new decay data crucial for understanding its properties.
Contribution
It presents new decay data and analysis identifying the f0(1500) as a scalar glueball candidate based on partial wave analysis and decay patterns.
Findings
f0(1500) identified as a scalar glueball candidate
New decay data for kaonic channels up to 1700 MeV
Partial wave analysis supports scalar meson nonet assignment
Abstract
The Crystal Barrel Collaboration observes scalar meson resonances in annihilation. Based on the measurements and partial wave analyses these are candidates for the P groundstate nonet. The supernummerary resonance is identified as a scalar groundstate glueball. Important information for its characterization comes from the decay pattern into pseudoscalar and scalar mesons. Data on kaonic decays in the mass region up to 1700 MeV are now avaible at Crystal Barrel. New analysis results are presented.
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Taxonomy
TopicsHigh-pressure geophysics and materials · Quantum Chromodynamics and Particle Interactions · Mineralogy and Gemology Studies