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arXiv · 1609.07260

Electromagnetic transitions in multiple chiral doublet bands

Hui Jia·Bin Qi·Shou-Yu Wang·Shuo Wang·Chen Liu
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Abstract

Multiple chiral doublet bands (M$χ$D) in the $80$, 130 and $190$ mass regions are studied by the model of $γ$=90$^{\circ}$ triaxial rotor coupled with identical symmetric proton-neutron configurations. By selecting the suitable basis, the calculated wave functions are explicitly exhibited to be symmetric under the operator $\hat{A}$, which is defined as rotation by $90^{\circ}$ about 3-axis with the exchange of valance proton and neutron. We found that both $M1$ and $E2$ transitions are allowed between the levels with different values of $A$, while are forbidden between the levels with same values of $A$. Such a selection rule holds true for M$χ$D in different mass regions.

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Hui Jia, Bin Qi, Shou-Yu Wang, Shuo Wang, Chen Liu. 2016-09-23. Electromagnetic transitions in multiple chiral doublet bands. https://doi.org/10.1088/1674-1137%2F40%2F12%2F124103

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