https://doi.org/10.1140/epja/i2003-10180-5
Letter
First identification of excited states in the
nucleus 93
Pd
1
Institute of Nuclear Research, Pf. 51, H-4001, Debrecen, Hungary
2
Department of Physics, Royal Institute of Technology, SE-10691, Stockholm, Sweden
3
Laboratori Nazionali di Legnaro, Padova, Italy
4
Institute de Recherches Subatomiques, F-67037, Strasbourg, France
5
H. Niewodniczanski Institute of Nuclear Physics, Krakow, Poland
6
Department of Radiation Sciences, Uppsala University, Uppsala, Sweden
* e-mail: sohler@atomki.hu
The first experimental information about excited states in the N = Z + 1 nucleus 93Pd is presented. The experiment was performed using a 205 MeV 58Ni beam from the Vivitron accelerator at IReS, Strasbourg, impinging on a bismuth-backed 40Ca target. Gamma-rays, neutrons and charged particles emitted in the reactions were detected using the Ge detector array Euroball, the Neutron Wall liquid-scintillator array and the Euclides Si charged-particle detector system. The experimental level scheme is compared with the results of new shell model calculations which predict a coupling scheme with aligned neutron-proton pairs to greatly influence the level structure of nuclei at low excitation energies.
© Società Italiana di Fisica and Springer-Verlag, 2004