Study of three quasi-two-body channels fromπ+pinteractions at 3.9 GeV/c
B. Haber,M. F. Hodous,R. I. Hulsizer,V. Kistiakowsky,A. Levy,I. A. Pless,R. A. Singer,J. Wolfson,R. K. Yamamoto;B. Haber;M. F. Hodous;R. I. Hulsizer;V. Kistiakowsky;A. Levy;I. A. Pless;R. A. Singer;J. Wolfson;R. K. Yamamoto;
physical review d1975Vol. 11pp. 495-509
154
yamamoto1975physicalstudy
Abstract
The pπ+π0 and pπ+π+π− final states from π+p interactions at 3.9 GeV/c have been analyzed by the prism-plot technique and the following three quasi-two-body channels have been studied in detail: π+p→ρ+p, π+p→π0Δ++, and π+p→ρ0Δ++. Results are presented on cross sections, differential cross sections, and single and joint spin density matrix elements. These are compared with the Dar-Watts-Weisskopf absorption model and Reggeized pion-exchange model predictions. Relations among joint spin density matrix elements for ρ0Δ++ are compared with quark-model predictions.