May 2011

Conference Paper

Search for Fingerprints of Tetrahedral Symmetry in ^{156}Gd

By:
Doan, Q. T.; Curien, D.; Stezowski, O.; Dudek, J.; Mazurek, K.; Gozdz, A.; Piot, J.; Duchene, G.; Gall, B.; Molique, H.; Richet, M.; Guinet, D.; Redon, N.; Schmitt, Ch.; Jones, P.; Peura, P.; Ketelhut, S.; Nyman, M.; Jakobsson, U.; Greenlees, P. T.; Julin, R.; Juutinen, S.; Rahkila, P.; Maj, A.; Zuber, K.; Bednarczyk, P.; Schunck, Nicolas F; Dobaczewski, J.; Astier, A.; Deloncle, I.; Verney, D.; De Angelis, G.; Gerl, J.
Journal Name:
Acta Physica Polonica B
Page Number:
725-730
Volume:
40
Issue Number:
3
Publication Date:
May 2011
Conference Name:
Zakopane Conference on Nuclear Physics
Conference Location:
Zakopane, Poland

Abstract

Theoretical predictions suggest the presence of tetrahedral symmetry as an explanation for the vanishing intra-band E2 transitions at the bottom of the odd-spin negative-parity band in ^{156}Gd. The present study reports on experiment performed to address this phenomenon. It allowed to remove certain ambiguities related to the intra-band E2 transitions in the negative-parity bands to determine the new inter-band transitions and reduced probability ratios B(E2)/B(E1) and, for the first time, to determine the experimental uncertainties related to the latter observable.