Spin assignment of the first discovered superdeformed band ^(152)Dy(1)

Ｓｐｉｎａｓｓｉｇｎｍｅｎｔｏｆｔｈｅｆｉｒｓｔ ｄｉｓｃｏｖｅｒｅｄｓｕｐｅｒｄｅｆｏｒｍｅｄｂａｎｄ^（１５２）Ｄｙ（１）ＬｅｉＹｉ－Ａｎ（雷奕安）（ＩｎｓｔｉｔｕｔｅｏｆＴｈｅｏｒｅｔｉｃａｌＰｈｙｓｉｃｓ，ｔｈｅＣｈｉｎｅｓｅＡｃａｄｅｍｙｏ?..

Using the several criteria for the spin assignment of a rotational band based on very general argument, the spill of the lowest level observed in the yrast SD band 152Dy(1)is assigned to be I0=26=602.4keV), and it is demonstrated that spin assignments of I0≤25 as well as I0≥27 are in contradiction with these criteria.