Universität zu Köln

Spieker, M., Bucurescu, D., Endres, J., Faestermann, T., Hertenberger, R., Pascu, S., Skalacki, S., Weber, S., Wirth, H. -F., Zamfir, N. -V. and Zilges, A. (2013). Possible experimental signature of octupole correlations in the 0(2)(+) states of the actinides. Phys. Rev. C, 88 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

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Abstract

J(pi) = 0(+) states have been investigated in the actinide nucleus Pu-240 up to an excitation energy of 3 MeV with a high-resolution (p, t) experiment at E-p = 24 MeV. To test the recently proposed J(pi) = 0(2)(+) double-octupole structure, the phenomenological approach of the spdf-interacting boson model has been chosen. In addition, the total 0(+) strength distribution and the 0(+) strength fragmentation have been compared to the model predictions as well as to the previously studied (p, t) reactions in the actinides. The results suggest that the structure of the 0(2)(+) states in the actinides might be more complex than the usually discussed pairing isomers. Instead, the octupole degree of freedom might contribute significantly. The signature of two close-lying 0(+) states below the 2-quasiparticle energy is presented as a possible manifestation of strong octupole correlations in the structure of the 0(2)(+) states in the actinides.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Spieker, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bucurescu, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Endres, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Faestermann, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hertenberger, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pascu, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Skalacki, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Weber, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wirth, H. -F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zamfir, N. -V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zilges, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-473942
DOI:	10.1103/PhysRevC.88.041303
Journal or Publication Title:	Phys. Rev. C
Volume:	88
Number:	4
Date:	2013
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1089-490X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EXCITED-STATES; O+ STATES; NUCLEI; EXCITATIONS; POPULATION; VIBRATION; ISOTOPES Multiple languages Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47394