2018 Impact factor 2.481
Hadrons and Nuclei


Eur. Phys. J. A 10, 151-155

Spectroscopy of $\bf {^{112}Pd}$ using heavy-ion-induced fission

R. Krücken1, 2, S.J. Asztalos2, R.M. Clark2, M.A. Deleplanque2, R.M. Diamond2, P. Fallon2, I.Y. Lee2, A.O. Macchiavelli2, G.J. Schmid2, F.S. Stephens2, K. Vetter2 and Jing-Ye Zhang1, 3

1  A.W. Wright Nuclear Structure Laboratory, Yale University, New Haven, CT 06520, USA
2  Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
3  University of Tennessee, Knoxville, TN 37996, USA

reiner.kruecken@yale.edu

(Received: 28 November 2000 / Revised version: 1 February 2001 Communicated by D. Guerrau)

Abstract
High-spin states in 112Pd were studied using prompt $\gamma$-ray spectroscopy with Gammasphere following heavy-ion-induced fission in the reaction 18O + 208Pb at 91 MeV. A new 8+ level at 2638 keV was discovered with transitions connecting it to the yrast band and the quasi-gamma band. The three, now established, closely spaced 8+ states indicate a mixing between the ground-state band, s-band, and quasi-gamma band. Several high-spin structures with likely negative parity have been extended to higher spin and it is proposed that they are based on the $\nu h_{11/2}
(g_{7/2}d_{5/2})$ and $\nu h_{11/2}(s_{1/2}d_{3/2})$ configurations.

PACS
23.20.Lv - Gamma transitions and level energies.
25.70.Jj - Fusion and fusion-fission reactions.
21.60.-n - Nuclear-structure models and methods.
27.60.+j - $90 \le A \le 149$ .

© Società Italiana di Fisica, Springer-Verlag 2001