arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1707.04417nucl-ex
收藏

奇奇核反磁转动的证据:~(142)Eu的例子

Evidence of the Antimagnetic rotation in an odd-odd nucleus: The case of 142Eu

Sajad Ali, S. Rajbanshi, B. Das, S. Chattopadhyay, M. Saha Sarkar, A. Goswami, R. Raut, Abhijit Bisoi, Somnath Nag, S. Saha, J. Sethi, R. Palit, G. Gangopadhyay… 展开作者

Sajad Ali, S. Rajbanshi, B. Das, S. Chattopadhyay, M. Saha Sarkar, A. Goswami, R. Raut, Abhijit Bisoi, Somnath Nag, S. Saha, J. Sethi, R. Palit, G. Gangopadhyay, T. Bhattacharjee, S. Bhattacharyya, G. Mukherjee, A. K. Singh, T. Trivedi

摘要:

本文报道了~(142)Eu在奇-奇核中存在反磁转动带的确凿证据。宇称的状态的四极序列在142 Eu坚定地确定从偏振测量使用印度国家伽马阵列和寿命的一些国家在相同的结构中使用多普勒频移衰减方法进行了测量。随着J(2)/ B(E2)值的增大,四极跃迁强度B(E2)随自旋的减小而减小,从而确定了这些态的起源是反磁旋转。在半经典几何模型的框架内,数值计算的结果得到了很好的再现。

英文摘要:

The present work reported a conclusive evidence for anti-magnetic rotational (AMR) band in an odd-odd nucleus 142Eu. Parity of the states of a quadrupole sequence in 142Eu was firmly identified from polarization measurements using the Indian National Gamma Array and lifetimes of some of the states in the same structure were measured using the Doppler shift attenuation method. The decreasing trends of the deduced quadrupole transition strength B(E2) with spin, along with increasing J(2) / B(E2) values conclusively established the origin of these states as arising from Antimagnetic rotation. The results were well reproduced by numerical calculations within the framework of a semi-classical geometric model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑