Lifetime measurements and shape coexistence in 97 Sr

Esmaylzadeh, A. and Régis, J. M. and Köster, U. and Jolie, J. and Karayonchev, Vassil and Knafla, Lukas and Nomura, Keiko and Robledo Martín, Luis Miguel and Rodríguez Guzmán, Rayner Roberto (2019). Lifetime measurements and shape coexistence in 97 Sr. "Physical Review C", v. 100 (n. 6); pp. 1-9. ISSN 2469-9985.


Title: Lifetime measurements and shape coexistence in 97 Sr
  • Esmaylzadeh, A.
  • Régis, J. M.
  • Köster, U.
  • Jolie, J.
  • Karayonchev, Vassil
  • Knafla, Lukas
  • Nomura, Keiko
  • Robledo Martín, Luis Miguel
  • Rodríguez Guzmán, Rayner Roberto
Item Type: Article
Título de Revista/Publicación: Physical Review C
Date: 2019
ISSN: 2469-9985
Volume: 100
Faculty: E.T.S. de Ingenieros Informáticos (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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 97Sr were measured using the fast-timing technique. The nucleus 97Sr 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.

Funding Projects

Government of SpainFPA2015-65929-PUnspecifiedUnspecifiedParticles and AstroParticles in the Universe
Government of SpainFIS2015-63770-PUnspecifiedUnspecifiedMás allá de campo medio y soluciones exactas en sistemas cuánticos de muchos cuerpos
Horizon 2020731096FILL2030Institut Laue-LangevinThe Future of ILL 2030

More information

Item ID: 67111
DC Identifier:
OAI Identifier:
DOI: 10.1103/PhysRevC.100.064309
Official URL:
Deposited by: Memoria Investigacion
Deposited on: 21 May 2021 08:02
Last Modified: 21 May 2021 08:02
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