ON GAMMA-DECAY OF GIANT-DIPOLE RESONANCE IN TIN ISOTOPES

VY PONOMAREV*, A KRASZNAHORKAY

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Abstract

The cross sections of excitation of the isovector giant dipole resonance in Sn-116, Sn-124 isotopes by inelastic scattering of alpha-particles in coincidence with gamma-decay into the ground state and the first excited 2+ state are presented. An attempt has been made to interpret a strong decay into the 2(1)+ state as a result of coupling of the giant dipole resonance (GDR) with the GDR built on the first 2+ state. For that, the microscopic calculation of the GDR fine structure has been performed within the quasiparticle phonon model. The results of calculations are in qualitative agreement with the experimental data.

Original languageEnglish
Pages (from-to)150-158
Number of pages9
JournalNuclear Physics A
Volume550
Issue number1
Publication statusPublished - 30-Nov-1992

Keywords

  • INELASTIC ALPHA-SCATTERING
  • QUADRUPOLE-RESONANCE
  • PHOTON-DECAY
  • EXCITATION
  • NUCLEI
  • PB-208

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