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Quadrupole moment of superdeformed bands in ~(151)Tb

机译:〜(151)Tb中超形变带的四极矩

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The quadrupole moments of the first two superdeformed (SD) bands in the nucleus ~(151)Tb have been measured with the Doppler Shift Attenuation Method (DSAM) using the EUROGAM γ-ray spectrometer. The first excited band (B2) is identical to the yrast SD band of ~(152)Dy in terms of dynamical moments of inertia and γ-ray energies. The measured relative quadrupole moments of the yrast band (B1) with respect to the band B2 are nicely reproduced by self-consitent Hartree-Fock calculations. The variation of the Q_0 value at the bottom of the yrast band suggests a large admixture between wave functions in the normal and the SD well. This could explain the rather high deexcitation spin for the yrast band.
机译:原子核〜(151)Tb中前两个超形变(SD)谱带的四极矩已使用EUROGAMγ射线光谱仪通过多普勒频移衰减方法(DSAM)进行了测量。在动态惯性矩和γ射线能量方面,第一激发带(B2)与〜(152)Dy的yrast SD带相同。通过自洽Hartree-Fock计算,可以很好地再现相对于B2频段的拉西频段(B1)的相对四极矩。 yrast波段底部Q_0值的变化表明正常井和SD井的波函数之间存在大量混合。这可以解释yrast带的较高的去磁自旋。

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