Negative pion capture in atomic nuclei near the closed neutron shell at N=82

The results of studies of the excitation of high spin states in stopped π--absorption in Nd, Pr, Ce, La and Ba nuclei are reported. States with spins 7-, 8- and 19/2- have been identified. The isomeric ratios for the isotopes 131Ba and 133Ba have been determined to be equal to σsub(m)/σsub(g)=(5.1+-0.5) and (2.2+-0.3), respectively. For the isomers sup(134m)Cs and sup(135m)Cs the isotopic ratio is found to be σsub(msub(1))/σsub(msub(2))=8.2+-2.3. The distinguishing features of the mechanisms of excitation of high spin states by stopped π- and fast protons are discussed