Candidate magnetic rotation sequence in⁸⁶Sr

Abstract

High-spin states in 86Sr have been investigated by using in-beam γ ray spectroscopy with the 82Se(9Be, 5n)86Sr reaction at a beam energy of 53 MeV. A new dipole sequence has been observed and the mixed configurations of unpaired valence nucleons and before the alignment and the configuration after the alignment are assigned respectively. Shell-model and self-consistent titled axis cranking relativistic mean-field model calculations are performed to interpret the rotational structure and the characteristic features of magnetic rotation have been presented for the sequence.

Possible ‘stapler’ band in 109Ag nucleus

“…Hence, the dipole bands are also referred to as magnetic rotational bands to distinguish them from the cases of collective 'electric' rotational bands [4,5]. Since the first observation of magnetic rotational band in Pb nucleus, more than 200 magnetic rotational bands have been reported experimentally in the A ∼ 60 [6][7][8], 80 [9][10][11][12][13][14][15][16], 110 , 140 [45][46][47][48][49][50][51][52][53][54][55][56][57][58], and 190 [59][60][61][62][63][64][65][66][67][68][69][70][71][72][73] mass regions.…”