Light Quark Spectroscopy Results from FOCUS and E687
classification
✦ hep-ex
keywords
experimentsfocusconfirmdiffractivediffractivelye687enhancementexistence
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Using the FOCUS spectrometer (experiments 687 and 831 at Fermilab) we confirm the existence of a diffractively photoproduced enhancement in $K^+K^- $ at 1750 \mevcc with nearly 100 times the statistics of previous experiments. We also observe a narrow dip structure at 1.9 GeV/c$^2$ in a study of diffractive photoproduction of the $3\pi^+3\pi^-$ final state.
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