Some Effects on A Single Particle Energies

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With the phenomenological A-nucleus potentials of Woods-Saxon shape,the effects of the maas-number dependence of the shrinkage,the effective mass m*^ and the charge-symmetry breaking (CSB) on the single particle energies are discussed.It is found that the single particle energies are not sensitive to the effective mass m*^.But the radius parameter depended on the mass number (ro (Ac) = r1 + r2A-2/3) can substantially improve the results.We also found that CSB effect is significant for heavy hypernuclei with a large neutron excess.
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