Esmaylzadeh, A., Regis, J-M, Kim, Y. H., Koster, U., Jolie, J., Karayonchev, V, Knafla, L., 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:
CreatorsEmailORCIDORCID Put Code
Esmaylzadeh, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Regis, J-MUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kim, Y. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Koster, U.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jolie, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Karayonchev, VUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Knafla, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nomura, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Robledo, L. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rodirguez-Guzman, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
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: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SHELL-MODEL; DEFORMATION; FEATURES; STATES; DECAY; TIMES; ZRMultiple languages
Physics, NuclearMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/12442

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