Collective Excitations in the Vicinity of N=Z

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In our contribution to the INPC98 conference we reported on the experimental investigation of high spin collective states in medium and heavy mass N≈Z nuclei at LNL. The main purpose is to set light on the role of the proton-neutron interaction in the collective behavior of the nucleus. In medium mass N=Z nuclei, in contrast with the stable nuclei, valence protons and neutrons occupy the same orbitals and one may expect a reinforcement of neutron-proton T=0 (np) pairing correlations[1]. In this interesting subject, the medium mass N=Z=36 72Kr has been studied and completely reported in [2]. In this proceedings we will concentrate in unpublished results concerning the onset of collectivity on nearly spherical nuclei in the 100Sn region. In nuclei with Z=50 and Z=49 dipole bands have been found indicating the presence of "Magnetic Rotation" [3].


  • G. De Angelis
  • N. Belcari
  • D. De Acuña
  • D. R. Napoli
  • T. Martinez
  • M. De Poli
  • P. Spolaore
  • G. Prete
  • E. Fioretto
  • P. Bednarczyk
  • A. Gadea
  • E. Farnea
  • C. A. Ur
  • D. Bazzacco
  • S. M. Lenzi
  • S. Lunardi
  • P. Pavan
  • C. Rossi Alvarez
  • F. Soramel
  • P. G. Bizzeti
  • A. M. Bizzeti-Sona
  • H. Grawe
  • R. Schubart
  • R. Wyss
  • F. Xu
  • A Johnson
  • N. Blasi
  • G. Lo Bianco
  • J. Nyberg
  • J. Persson
  • S. Frauendorf
Enheter & grupper
Externa organisationer
  • Laboratori Nazionali di Legnaro
  • Polish Academy of Learning
  • Instituto de Física Corpuscular
  • “Horia Hulubei” National Institute of Physics and Nuclear Engineering
  • GSI Helmholtz Centre for Heavy Ion Research
  • KTH Royal Institute of Technology
  • Helmholtz-Zentrum Dresden-Rossendorf
  • Istituto Nazionale di Fisica Nucleare, Sezione di Padova INFN
  • Uppsala universitet, Historiska institutionen

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
Titel på värdpublikationProceedings INPC 1998
Utgåva1 SUPPL. 1
StatusPublished - 1999 jul 26
Peer review utfördJa


NamnNuclear Physics A
ISSN (tryckt)0375-9474