Search for in-band transitions in the candidate superdeformed band in Si28

Superdeformation and dynamical symmetry

“…For the 28 Si case e.g. a candidate for the SD band was rejected recently [23], due to the large value (188.1 W.u.) of the AMD-predicted 4 + → 2 + transition.…”

“…Electromagnetic transitions in the investigated nuclei. The experimental data (and band names, with the exception of the 28 Si Candidate SD band and 44 Ti SD + 0 2 , SD + 2 3 bands, which we named) are from the [56] database except for the indexes: (a): [58], (b): [23], (c): [25], (d): [36], (e): [37], (f): [15], (g): [44], (h): [40], (i): [41], (j): [38]. Energies are in MeV and B(E2) values are in Weisskopf units.…”

“…Using the experimental results reported in the literature and based on analysis of own experimental data a set of candidate SD states has been identified [11], later completed with its experimentally suggested 0 + bandhead [22]. The latest development in the history of the SD band of 28 Si is that establishing a new experimental methodology in [23] the authors sought to determine the transition strength between two states of the assumed SD band, which was predicted to be very large (188.1 W.u.) by AMD calculation [18].…”

The Nuclear Shell Model towards the Drip Lines

“…34 Si and 48 Ca are doubly magic due to the LS magic number 20. 28 Si [14,14] has a known intrinsic oblate deformation [84].…”