Lifetime measurements and shape coexistence in Sr97

Scientific paper - Original scientific paper

• Author: A. Esmaylzadeh
• Author: J.-M. Régis
• Author: Y. H. Kim
• Author: U. Köster
• Author: J. Jolie
• Author: V. Karayonchev
• Author: L. Knafla
• Author: Kosuke Nomura
• Author: L. M. Robledo
• Author: R. Rodríguez- Guzmán
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

Delayed γ 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 97 Sr were measured using the fast-timing technique. The nucleus 97 Sr 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... More 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. Less

• Keywords (english): Nuclear Structure
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review C
• Numbering: vol. 100, no. 6, 064309
• p-ISSN: 2469-9985
• e-ISSN: 2469-9993
• DOI: https://doi.org/10.1103/physrevc.100.064309
• URN:NBN: urn:nbn:hr:217:802061
• Publication: 2019
• Document URL: https://link.aps.org/doi/10.1103/PhysRevC.100.064309
• Type of resource: Text
• Access conditions: Open access
• Public note: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Received 30 July 2019; revised manuscript received 2 September 2019; published 13 December 2019.
• Created on: 2020-08-21 15:56:25