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Identification Of Chiral Bands In 135Ce

机译:在135CE中识别手性带

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High spin states in 135Ce were studied following the 124Sn(16O, 5n)135Ce reaction with an array of 8 Compton suppressed clover detectors and a multiplicity filter consisting of 14 NaI(T1) detectors. The decay scheme of 135Ce shows a pair of ΔI = 1 bands which have nearly degenerate energies. The levels in two bands cross each other near the band head spin and again close to the highest spin. Both these bands have similar intensity and moment of inertia. Inter-band transitions have been observed in both directions. Both the bands have also similar B(M1)/B(E2) ratios with increasing rotational frequency. Lifetimes of levels up to a spin of 41/2 have been measured to obtain inband B(M1), B(E2) values and the ratios of the infra band and inter band B(M1) values. It has been concluded from the present observations that these bands may form a `Chiral doublet' in 135Ce.
机译:在124SN(160,5N)135CE反应之后,使用8个COPON抑制的三叶草探测器和由14个NAI(T1)检测器组成的多个滤波器,研究了135CE中的高旋转状态。 135ce的衰减方案显示了一对ΔI= 1带,其具有几乎简化的能量。两个带中的水平在带头旋转附近彼此交叉,并再次接近最高旋转。这两个乐队都有类似的强度和惯性矩。在两个方向上观察到带间过渡。频带也具有相似的B(M1)/ B(E2)比率,随着旋转频率的增加。已经测量了41/2旋转的水平的寿命以获得接头B(M1),B(E2)值和频段和频段B(M1)值的比率。从本发明观察中得出结论,这些乐队可以在135CE中形成“手平双板”。

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