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26 May 2020
 
  » arxiv » nucl-th/0105047

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Anomalous rotational-alignment in N=Z nuclei and residual neutron-proton interaction
Yang Sun ; Javid A. Sheikh ;
Date 21 May 2001
Journal Phys.Rev. C64 (2001) 031302
Subject nucl-th nucl-ex
AbstractRecent experiments have demonstrated that the rotational-alignment for the $N=Z$ nuclei in the mass-80 region is considerably delayed as compared to the neighboring $N e Z$ nuclei. We investigate whether this observation can be understood by a known component of nuclear residual interactions. It is shown that the quadrupole-pairing interaction, which explains many of the delays known in rare-earth nuclei, does not produce the substantial delay observed for these $N=Z$ nuclei. However, the residual neutron-proton interaction which is conjectured to be relevant for $N=Z$ nuclei is shown to be quite important in explaining the new experimental data.
Source arXiv, nucl-th/0105047
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