High resolution spectroscopy in the third minimum of 232Pa

L. Csige, M. Csatlós, T. Faestermann, J. Gulyás, D. Habs, R. Hertenberger, M. Hunyadi, A. Krasznahorkay, H. J. Maier, P. G. Thirolf, H. F. Wirth

Research output: Article


The fission probability of 232Pa was measured as a function of the excitation energy in order to search for hyperdeformed (HD) transmission resonances using the (d,pf) transfer reaction on a radioactive 231Pa target. The experiment was performed at the Tandem accelerator of the Maier-Leibnitz Laboratory (MLL) at Garching using the 231Pa (d,pf) reaction at a bombarding energy of E d = 12MeV and with an energy resolution of ΔE = 5.5 keV. Two groups of transmission resonances have been observed at excitation energies of E* = 5.7 and 5.9MeV. The fine structure of the resonance group at E* = 5.7MeV could be interpreted as overlapping rotational bands with a rotational parameter characteristic to a HD nuclear shape (h 2=2φ = 2.05 keV). The fission barrier parameters of 232Pa have been determined by fitting TALYS nuclear reaction code calculations to the overall structure of the fission probability.

Original languageEnglish
Pages (from-to)291-296
Number of pages6
JournalActa Physica Polonica B
Issue number2
Publication statusPublished - febr. 1 2012


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Csige, L., Csatlós, M., Faestermann, T., Gulyás, J., Habs, D., Hertenberger, R., Hunyadi, M., Krasznahorkay, A., Maier, H. J., Thirolf, P. G., & Wirth, H. F. (2012). High resolution spectroscopy in the third minimum of 232Pa. Acta Physica Polonica B, 43(2), 291-296. https://doi.org/10.5506/APhysPolB.43.291