The Photoproduction of the $b_1(1235)\pi$ System

Abstract

We report on a study of the reaction, $\gamma p\to p{\pi }^{+}{\pi }^{+}{\pi }^{-}{\pi }^{-}{\pi }^0$, at an incident photon energy of 19.3 GeV. The most significant feature of this reaction is ${\Delta }^{++}$ production which occurs with a cross section of $0.6\pm 0.1\mu$b. An upper limit is set for the cross section for the reaction, $\gamma p\to {\Delta }^{++}{b}_1^{-}(1235)$, and a search is made for resonances decaying to $b_1^{\pm }{\pi }^{\mp }$.

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