2020/11/07 by Shuifa Shen, Jiejie Shen, Shen, Shuifa +17
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Nuclear Experiment (nucl-ex) #hep-ex #nucl-ex
paper · pdf · doi:10.48550/arxiv.2011.04897
9 pages,5 figures. arXiv admin note: substantial text overlap with arXiv:1606.08173
arxiv created 2020/11/07 · arxiv updated 2020/11/11
High-spin states in 84Rb are studied by using the 70Zn(18O, p3n)84Rb reaction at a beam energy of 75 MeV. Three high-lying negative-parity bands are established, whose level spacings are very regular, i.e., there is no signature splitting. The dipole character of the transitions of these three bands is assigned by the gamma-gamma directional correlations of oriented states (DCO) intensity ratios and the multipolarity M1 is suggested by analogy with multiparticle excitations in neighboring nuclei. Strong M1 and weak or no E2 transitions are observed. All these characteristic features show they are magnetic rotational bands.