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M1 and E2 transition rates from core-excited states in semi-magic 94Ru

  • A. Ertoprak
  • B. Cederwall
  • C. Qi
  • M. Doncel
  • U. Jakobsson
  • B. M. Nyakó
  • G. Jaworski
  • P. Davies
  • G. de France
  • I. Kuti
  • D. R. Napoli
  • R. Wadsworth
  • S. S. Ghugre
  • R. Raut
  • B. Akkus
  • H. Al Azri
  • A. Algora
  • G. de Angelis
  • A. Atac
  • T. Bäck
  • A. Boso
  • E. Clément
  • D. M. Debenham
  • Zs. Dombrádi
  • S. Ertürk
  • A. Gadea
  • F. Ghazi Moradi
  • A. Gottardo
  • T. Hüyük
  • E. Ideguchi
  • H. Li
  • C. Michelagnoli
  • V. Modamio
  • J. Nyberg
  • M. Palacz
  • C. M. Petrache
  • F. Recchia
  • M. Sandzelius
  • M. Siciliano
  • J. Timár
  • J. J. Valiente-Dobón
  • Z. G. Xiao
Regular Article - Experimental Physics
  • 57 Downloads

Abstract.

Lifetimes of high-spin states have been measured in the semi-magic \((N=50)\) nucleus 94Ru. Excited states in 94Ru were populated in the 58Ni(40Ca, 4p)94Ru* fusion-evaporation reaction at the Grand Accélérateur National d’Ions Lourds (GANIL) accelerator complex. DSAM lifetime analysis was performed on the Doppler broadened line shapes in energy spectra obtained from \(\gamma\)-rays emitted while the residual nuclei were slowing down in a thick 6mg/cm^2 metallic 58Ni target. In total eight excited-state lifetimes in the angular momentum range \(I = (13-20)\hbar\) have been measured, five of which were determined for the first time. The corresponding B(M1) and B(E2) reduced transition strengths are discussed within the framework of large-scale shell model calculations to study the contribution of different particle-hole configurations, in particular for analyzing contributions from core-excited configurations.

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Copyright information

© SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • A. Ertoprak
    • 1
    • 2
  • B. Cederwall
    • 1
  • C. Qi
    • 1
  • M. Doncel
    • 1
    • 3
  • U. Jakobsson
    • 1
    • 4
  • B. M. Nyakó
    • 5
  • G. Jaworski
    • 6
  • P. Davies
    • 7
  • G. de France
    • 8
  • I. Kuti
    • 5
  • D. R. Napoli
    • 6
  • R. Wadsworth
    • 7
  • S. S. Ghugre
    • 9
  • R. Raut
    • 9
  • B. Akkus
    • 2
  • H. Al Azri
    • 7
  • A. Algora
    • 5
    • 10
  • G. de Angelis
    • 6
  • A. Atac
    • 1
  • T. Bäck
    • 1
  • A. Boso
    • 11
  • E. Clément
    • 8
  • D. M. Debenham
    • 7
  • Zs. Dombrádi
    • 5
  • S. Ertürk
    • 12
  • A. Gadea
    • 10
  • F. Ghazi Moradi
    • 1
  • A. Gottardo
    • 13
  • T. Hüyük
    • 10
  • E. Ideguchi
    • 14
  • H. Li
    • 1
  • C. Michelagnoli
    • 8
  • V. Modamio
    • 6
  • J. Nyberg
    • 15
  • M. Palacz
    • 16
  • C. M. Petrache
    • 13
  • F. Recchia
    • 11
  • M. Sandzelius
    • 17
  • M. Siciliano
    • 6
  • J. Timár
    • 5
  • J. J. Valiente-Dobón
    • 6
  • Z. G. Xiao
    • 18
  1. 1.Department of PhysicsRoyal Institute of Technology (KTH)StockholmSweden
  2. 2.Department of Physics, Faculty of ScienceIstanbul UniversityIstanbulTurkey
  3. 3.Department of Physics, Oliver Lodge LaboratoryUniversity of LiverpoolLiverpoolUK
  4. 4.Department of ChemistryUniversity of HelsinkiHelsinkiFinland
  5. 5.MTA AtomkiDebrecenHungary
  6. 6.Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di LegnaroLegnaroItaly
  7. 7.Department of PhysicsUniversity of YorkHeslington, YorkUK
  8. 8.Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3Caen Cedex 5France
  9. 9.UGC-DAE Consortium for Scientific ResearchKolkata CentreKolkataIndia
  10. 10.Instituto de Física CorpuscularCSIC-Universidad de ValenciaValenciaSpain
  11. 11.Dipartimento di Fisica e AstronomiaUniversità di PadovaPadovaItaly
  12. 12.Nigde Omer Halisdemir University, Science and Art Faculty, Department of PhysicsNigdeTurkey
  13. 13.Centre de Sciences Nucléaires et Sciences de la Matière, CNRS/IN2P3Université Paris-SaclayOrsayFrance
  14. 14.Research Center for Nuclear PhysicsOsaka UniversityOsakaJapan
  15. 15.Department of Physics and AstronomyUppsala UniversityUppsalaSweden
  16. 16.Heavy Ion LaboratoryUniversity of WarsawWarsawPoland
  17. 17.University of Jyväskylä, Department of PhysicsJyväskyläFinland
  18. 18.Department of PhysicsTsinghua UniversityBeijingChina

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