Universität zu Köln

Esmaylzadeh, A., Regis, J-M, Kim, Y. H., Koster, U., Jolie, J., Karayonchev, V, Knafla, Lukas ORCID: 0000-0001-7926-4639, Nomura, K., Robledo, L. M. and Rodirguez-Guzman, R. (2019). Lifetime measurements and shape coexistence in Sr-97. Phys. Rev. C, 100 (6). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

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Abstract

Delayed gamma rays from neutron-rich A = 97 fission fragments were measured using the Lohengrin spectrometer at the high-flux reactor of the Institut Laue-Langevin in Grenoble. Several lifetimes of excited states in Sr-97 were measured using the fast-timing technique. The nucleus Sr-97 exhibits shape coexistence and is located exactly at the border of the spherical (N <= 58) and deformed (N >= 60) ground-state deformation. It is of particular interest to study the shape-coexisting structures at the spherical-deformed border (N = 59). The determined lifetimes within this work are compared to an interacting boson-fermion model calculation that is based on the microscopic energy density functional to provide a better understanding of the spherical-deformed border in strontium isotopes.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Esmaylzadeh, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Regis, J-M UNSPECIFIED UNSPECIFIED UNSPECIFIED Kim, Y. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Koster, U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jolie, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Karayonchev, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Knafla, Lukas lknafla@ikp.uni-koeln.de orcid.org/0000-0001-7926-4639 UNSPECIFIED Nomura, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Robledo, L. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rodirguez-Guzman, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-124426
DOI:	10.1103/PhysRevC.100.064309
Journal or Publication Title:	Phys. Rev. C
Volume:	100
Number:	6
Date:	2019
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9993
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute for Nuclear Physics
Subjects:	Natural sciences and mathematics
Uncontrolled Keywords:	Keywords Language SHELL-MODEL; DEFORMATION; FEATURES; STATES; DECAY; TIMES; ZR Multiple languages Physics, Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/12442