STUDY OF N=82-NUCLEI IN REACTION 142ND(D,3HE)141PR

The ground state of 142Nd and five states of 141Pr have been studied using the reaction 142Nd(d, 3He)141Pr at an incident deuteron energy of 29.0 MeV. In the region 0-3 MeV excitation of 141Pr, five states at energies 0.0, 0.145, 1.12, 1.30 and 1.61 MeV were observed. The absolute differential cross sections determined for these transitions in the angular range 10°-40° were analysed with conventional distorted-wave calculations using the code DWUCK. Transferred angular momentum values and spectroscopic factors were determined. The excitation spectrum of 141Pr is compared with other recent reaction and decay scheme studies and is discussed in the framework of the quasiparticle description. A separate determination of the excitation energy of the first excited state was also obtained by measuring the energy of the γ-ray emitted in the decay of this level following its population in the β- decay of 141Ce. The measurement was performed with a curved-crystal spectrometer and resulted in the value Eγ = 145.450±0.005 keV. © 1969.