On the narrow dip structure at 1.9 GeV/c2 in diffractive photoproduction
P. L. Frabetti
Abstract
The narrow dip observed at 1.9 GeV/c2 by the Fermilab experiment E687 in diffractive photoproduction of ~3π+3π- is examined. The E687 data are refitted, a mechanism is proposed to explain why this resonance appears as a dip, and possible interpretations are discussed.
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