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Zeitschrift für Physik A Atoms and Nuclei

, Volume 320, Issue 2, pp 273–281 | Cite as

Disappearance of the hindrance ofE1-transition involving loosely bound nucleon

  • T. Uchiyama
  • H. Morinaga
Nuclei

Abstract

AlthoughE1-transition between levels below giant dipole resonance are almost always strongly hindered, there are several exceptions as observed in11Be and13C. These fastE1-transitions are studied by adopting a simple “cutoff” model, in which the behavior of single particle wave functions only outside of the nucleus contribute. The results are compared with the particle-GDR coupling model. The reason why theE1-hindrance disappears is explained. We also investigate the direct capture of thermal neutron by40Ca andN=82 nuclei, where similar situation is observed. Further, the implication of the direct capture in multiple neutron capture is discussed.

Keywords

Elementary Particle Single Particle Coupling Model Thermal Neutron Neutron Capture 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • T. Uchiyama
    • 1
  • H. Morinaga
    • 2
  1. 1.Department of PhysicsTohoku UniversitySendaiJapan
  2. 2.Fakultät für PhysikTechnische Universität MünchenGarchingGermany

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