Photoproduction of High-Mass Di-Pion Pairs at 15 BeV

Abstract
We have measured the cross section for the photoproduction of di-pions in the mass range 0.9-2.2 BeVc2. The experiment was performed with a 16-BeV bremsstrahlung beam on a Be target. Upper limits on the cross section for photoproduction of high-mass vector mesons are determined.