105Pd的负宇称高自旋结构
Negative-parity high-spin structure of 105Pd
AI总结：
研究105Pd核负宇称高自旋结构，通过特定反应及仪器观察新能带并扩展旧能带，与模型计算比较后为准粒子构型分配能带，否定了对第三个解耦能带的一种解释，且强耦合能带不表现手征性。
AI中文摘要：
通过96Zr(13C,4n)105Pd反应，在51和58MeV入射能量下，利用EUROBALL IV伽马射线光谱仪结合DIAMANT带电粒子阵列，研究了105Pd核的负宇称中高自旋结构。观察到新的能带并扩展了先前报道的能带。共观察到六个具有E2跃迁的解耦能带和一个具有M1+E2跃迁的强耦合能带。将观察到的能谱和B(M1)/B(E2)比率与量子粒子转子模型计算结果进行比较，据此为准粒子构型分配到两个新观察到的解耦能带以及强耦合能带。先前对第三个解耦能带作为双声子摆动激发的可能解释缺乏支持，观察表明该能带可能具有伽马带性质。强耦合能带与本实验中未观察到另一个强耦合能带一致，不表现出手征性。
英文摘要：
Negative-parity medium- and high-spin structure of the nucleus 105Pd was studied through the 96Zr(13C,4n)105Pd reaction at incident energies of 51 and 58 MeV, using the EUROBALL IV gamma-ray spectrometer in conjunction with the DIAMANT charged particle array. New bands have been observed and the previously reported bands have been extended to higher energies and spins. Altogether six decoupled bands with E2 transitions and one strongly coupled band with M1 + E2 transitions have been observed. The observed energy spectra and B(M1)/B(E2) ratios are compared with results of quantum particle rotor model calculations. Based on these comparisons, quasiparticle configurations can be assigned to two newly observed decoupled bands as well as to the strongly coupled band. The previously emerged possible interpretation for the third decoupled band as a two-phonon wobbling excitation lacks support. The observations indicate possible gamma-band nature for this band. The strongly coupled band, consistently with the absence of another observed strongly coupled band in this experiment, does not exhibit chirality.
