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Application of 1+3 Quasiparticle-vibration Coupling Model to 11Be

GAO Li-li1,2, ZENG Guo-mo1   

  1. (1. College of Physics, Jilin University, Changchun 130021, China; 2. Department of Physics, College of Normal Science, Beihua University, Jilin 132013, Jilin Province, China)
  • Received:2005-03-15 Revised:1900-01-01 Online:2005-11-26 Published:2005-11-26
  • Contact: ZENG Guo-mo

Abstract: The low-lying excitation spectra of 11Be was calculated on the basis of 1+3 quasiparticle-vibration coupling model.Experimentally observed 4 MeV excited state of 11Be has been reprouduced, and the results are in good agreement with experiments. The calculation result shows that some of the low-lying excited levels of 11Be are caused by coupling of 1+3 quasiparticles with even-even vibrating core 8Be. The halo structure of 11Be is also explained reasonably.

Key words: 1+3 quasiparticle-vibration coupling model, 3 quasiparticle excitation, surface collective vibration

CLC Number: 

  • O571