Alpha Cluster Formation in 2 ° N e in the Cluster - Orbital Shell Model . II

نویسندگان

  • Kengo OGAWA
  • Yasuyuki SUZUKI
  • S. Hara
  • K. Ogawa
  • Y. Suzuki
چکیده

A cluster-orbital shell model is applied to study the mechanism of a-cluster formation in 2°Ne. For this purpose a realistic effective interaction between the valence nucleons is carefully determined and tested through the low-lying levels of the sd shell nuclei. A calculation including all the configurations up to 4nw excitation is done for the 0+ levels of 2°Ne. Three 0+ states that correspond to the states at Ex=O, 6.72 and 10.97 MeV are reproduced very well. The calculation also predicts such a state that has a large reduced a·width amplitude and can be considered the broad state at 8.7 MeV. The percentage analysis of the wave functions is done to shed light on the mechanism of a·cluster formation.

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تاریخ انتشار 2000