In-beam study and structure of the N = 82 nucleus 141Pr

High-spin states in ¹⁴¹Pr have been studied in the reactions ¹³⁹La(α, 2n)¹⁴¹Pr and ¹⁴⁰Ce(d, n)¹⁴¹Pr. Using in-beam spectroscopic methods energies, intensities, excitation functions, γγ coincidences, time and angular distributions and the linear polarization of γ-rays as well as conversion electron spectra were measured. Positive- and negative-parity states of ¹⁴¹Pr have been established for spin values up to $\text{J =}\text{27}\text{2}$ and E_x < 4750 keV including 19 news lvels. For three levels ns-lifetimes were determined. The experimental data on positive-parity states are in remarkable agreement with shell-model predictions. In the case of positive-parity states no evidence for particle-core coupling is found. The shell-model investigation suggests, however, that the negative-parity states in ¹⁴¹Pr as well as in ¹⁴³Pm can be explained by particle-core coupling.