Isovector quadrupole resonance in 13C(γ, n) reaction

Kazushige Maeda, Ito Sachiko, Hideaki Itoh, Osamu Konno, Hideto Matsuyama, Tetsuya Murakami, Takaoki Sasaki, Toshimi Suda, Motonobu Takeya, Tatuo Terasawa

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The photoneutron cross section for 13C was measured in the tagged photon energy range Eγ = 17-70 MeV. Substantial forward to backward asymmetry was observed above the giant dipole resonance region. The observed asymmetries were analyzed by the direct and semi-direct model, assuming two isovector E2 resonances, which locate at Ex = 30:9 ± 1:5 MeV with Γ = 8 ± 6 MeV and Ex = 43:2 ± 1:8 MeV with Γ = 13 ± 6 MeV. They are identified as the T< and T> isospin components of the isovector quadrupole strengths, which exhaust most of the sum rule.

Original languageEnglish
Article number034201
Journaljournal of the physical society of japan
Volume75
Issue number3
DOIs
Publication statusPublished - 2006 Mar 1

Keywords

  • Giant resonance
  • Isovector
  • Photonuclear reaction
  • Tagged photon

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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