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Coulomb energy differences between isobaric analogue states in 70Br and 70Se

Identification of excited states of the Tz = 0 nucleus 70Br
  • G. de Angelis
  • T. Martinez
  • A. Gadea
  • N. Marginean
  • E. Farnea
  • E. Maglione
  • S. Lenzi
  • W. Gelletly
  • C.A. Ur
  • D.R. Napoli
  • Th. Kroell
  • S. Lunardi
  • B. Rubio
  • M. Axiotis
  • D. Bazzacco
  • A.M. Bizzeti Sona
  • P.G. Bizzeti
  • P. Bednarczyk
  • A. Bracco
  • F. Brandolini
  • F. Camera
  • D. Curien
  • M. De Poli
  • O. Dorvaux
  • J. Eberth
  • H. Grawe
  • R. Menegazzo
  • G. Nardelli
  • J. Nyberg
  • P. Pavan
  • B. Quintana
  • C. Rossi Alvarez
  • P. Spolaore
  • T. Steinhart
  • I. Stefanescu
  • O. Thelen
  • R. Venturelli

Abstract.

Gamma ray transitions de-exciting states in the N = Z nucleus 70Br have been identified for the first time using the GASP and EUROBALL arrays coupled with ancillary detectors. The level scheme of 70Br has been established by means of particle-gated γ-γ and γ-γ-γ coincidences. The Coulomb energy differences between isobaric analogue states in 70Br and 70Se show a deviation from the expected behaviour which could be related to dripline effects.

PACS. 23.20.Lv Gamma transitions and level energies – 21.10.Sf Coulomb energies – 27.50.+e 59 ?A? 89 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2001

Authors and Affiliations

  • G. de Angelis
    • 1
  • T. Martinez
    • 1
  • A. Gadea
    • 1
  • N. Marginean
    • 1
  • E. Farnea
    • 1
  • E. Maglione
    • 2
  • S. Lenzi
    • 2
  • W. Gelletly
    • 3
  • C.A. Ur
    • 2
  • D.R. Napoli
    • 1
  • Th. Kroell
    • 1
  • S. Lunardi
    • 2
  • B. Rubio
    • 4
  • M. Axiotis
    • 1
  • D. Bazzacco
    • 2
  • A.M. Bizzeti Sona
    • 5
  • P.G. Bizzeti
    • 5
  • P. Bednarczyk
    • 6
  • A. Bracco
    • 7
  • F. Brandolini
    • 2
  • F. Camera
    • 7
  • D. Curien
    • 6
  • M. De Poli
    • 1
  • O. Dorvaux
    • 6
  • J. Eberth
    • 8
  • H. Grawe
    • 9
  • R. Menegazzo
    • 2
  • G. Nardelli
    • 10
  • J. Nyberg
    • 11
  • P. Pavan
    • 2
  • B. Quintana
    • 12
  • C. Rossi Alvarez
    • 2
  • P. Spolaore
    • 1
  • T. Steinhart
    • 7
  • I. Stefanescu
    • 7
  • O. Thelen
    • 7
  • R. Venturelli
    • 2
  1. 1.Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, via Romea 4, I-35020 Legnaro, ItalyIT
  2. 2.Dipartimento di Fisica dell'Università and INFN, Sezione di Padova, I-35141 Padova, ItalyIT
  3. 3.Department of Physics, University of Surrey, Guildford, GU2 5XH, UKGB
  4. 4.Instituto de Fisica Corpuscular, E-46100 Valencia, SpainES
  5. 5.Dipartimento di Fisica dell'Università and INFN, Sezione di Firenze, I-50125 Firenze, ItalyIT
  6. 6.Institut de Recherches Subatomiques, CNRS-IN2P3, F-67037 Strasbourg, FranceFR
  7. 7.Dipartimento di Fisica dell' Università and INFN, Sezione di Milano, I-20133 Milano, ItalyIT
  8. 8.Institut für Kernphysik der Universität zu Köln, D-50937 GermanyDE
  9. 9.Gesellschaft für Schwerionenforschung, D-64291 Darmstadt, GermanyDE
  10. 10.Dipartimento di Chimica Fisica dell'Università di Venezia and INFN, Sezione di Padova, ItalyIT
  11. 11.Department of Neutron Research, Uppsala University, Uppsala, SwedenSE
  12. 12.Universidad de Salamanca, E-37008 Salamanca, SpainES

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