Universität zu Köln

Spagnoletti, P., Simpson, G., Kisyov, S., Bucurescu, D., Regis, J-M, Saed-Samii, N., Blanc, A., Jentschel, M., Koster, U., Mutti, P., Soldner, T., de France, G., Ur, C. A., Urban, W., Bruce, A. M., Bernards, C., Drouet, F., Fraile, L. M., Gaffney, L. P., Ghita, D. G., Ilieva, S., Jolie, J., Korten, W., Kroll, T., Lalkovski, S., Larijarni, C., Lica, R., Mach, H., Marginean, N., Paziy, V, Podolyak, Zs, Regan, P. H., Scheck, M., Smith, J. F., Thiamova, G., Townsley, C., Vancraeyenest, A., Vedia, V., Warr, N., Werner, V and Zielinska, M. (2019). Lifetimes and shape-coexisting states of( 99)Zr. Phys. Rev. C, 100 (1). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

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Abstract

Lifetimes of intermediate-spin states in two rotational bands of Zr-99 have been measured. These states were populated following the neutron-induced fission of U-235 at the PF1B beamline of the Institut Laue-Langevin, Grenoble, during the EXILL-FATIMA campaign. The nucleus Zr-99(59) exhibits shape coexistence and lies precisely on the border of an abrupt change in ground-state deformation when going from N = 58 to N = 60, making its study interesting for understanding the mechanisms involved in the rapid onset of deformation here. The B(E2) values extracted for decays in the nu 3/2[541] band allow quadrupole deformations of beta(2) = 0.34(1) and 0.26(3) to be determined for the 821.6- and 1236.6-keV members, whereas beta(2) = 0.32(3) was found for the 850.5-keV member of the nu 3/2[411] band. Some of the excited states known in Zr-99 have been reasonably described with interacting boson-fermion model (IBFM) calculations. Type-II shell evolution is proposed to play a major role in modifying single-particle energies in Zr-99.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Spagnoletti, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Simpson, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kisyov, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bucurescu, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Regis, J-M UNSPECIFIED UNSPECIFIED UNSPECIFIED Saed-Samii, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Blanc, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jentschel, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Koster, U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mutti, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Soldner, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED de France, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ur, C. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Urban, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bruce, A. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bernards, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Drouet, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fraile, L. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gaffney, L. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ghita, D. G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ilieva, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jolie, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Korten, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kroll, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lalkovski, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Larijarni, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lica, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mach, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Marginean, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Paziy, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Podolyak, Zs UNSPECIFIED UNSPECIFIED UNSPECIFIED Regan, P. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Scheck, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Smith, J. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Thiamova, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Townsley, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vancraeyenest, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vedia, V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Warr, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Werner, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Zielinska, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-135045
DOI:	10.1103/PhysRevC.100.014311
Journal or Publication Title:	Phys. Rev. C
Volume:	100
Number:	1
Date:	2019
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9993
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NUCLEAR-DATA SHEETS; DEFORMATION; ZR; EVOLUTION; SR; ZR-98,ZR-99; SR-96,SR-97; TRANSITION; ISOTOPES; REGION Multiple languages Physics, Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13504