軽い中性子過剰核の低エネルギー反応ダイナミクス(大振幅集団運動の微視的理論,研究会報告)

概要

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The monopole excitation (0_<g.s.>^+→0<ex.>^+) of light neutron-excess systems ^<10,12>Be=α+α+XN (X=2,4) are investigated by the generalized two-center cluster model. We analyze the mechanism of an enhancement of the monopole strength in connection to the adiabatic energy surfaces for α-α distance. We find that the monopole strength is strongly enhanced if there is a smooth connection of adiabatic energy surfaces between the ground state and the excited final state. In ^<10>Be, the monopole breakup reaction of ^<10>Be+^<12>C is also investigated by the coupled discretized-continuum channels method.
2011-05-20