NEUTRAL B(1235) PRODUCTION IN THE REACTION NEGATIVE PION-PROTON ---> OMEGA NEUTRAL PION NEUTRON AT 8.45 GEV/C.

摘要

We have performed a sequential decay analysis of the reaction.;at 8.45 GeV/c in a counter - spark chamber experiment conducted at the Argonne National Laboratory Zero Gradient Synchrotron. The production and decay properties of the B('0) meson are presented, along with the differential cross section for the reaction (pi)('-)p (--->) B('0)n. We present evidence for the existence of the (rho)'(1250) meson (IJ('PC) = 11('--)). Our study of the B('0) production indicates dominance of A(,2) exchange (nucleon spin flip). We have found significant amounts of D-wave in the B('0) (--->) (omega)(pi)('0) decay. The production mechanisms for (rho)'(1250) are similar to those for (rho)(770) production and are dominated by (pi) exchange.;(pi)('-)p (--->) (omega)(pi)('0)n.