First cascades in⁷³Br and high-spin states in⁷⁵Br

Level structure ofSe69

“…At low energies, the negative-parity states in 69 Se do not show a rotational structure as observed in the heavier odd-Se and Br isotopes, suggesting a smaller deformation for this part of the level scheme and possibly predominant shell model characteristics. Negative-parity decoupled rotational bands develop already at very low excitation energies in 71 Se [47] and 71,73 Br nuclei [48,49]. With increasing the neutron number, strongly-coupled negative-parity structures characterize the 73,75,77 Se [50-52] and 75,77 Br isotopes [53,54].…”

Exploring binding energy and separation energy dependences of HBT strength

“…For the initialization of the nucleons of the target and projectile, the IDQMD model distinguishes the proton and neutron from each other. The neutron and the proton density distribution are determined from the Skyrme-Hartree-Fock (SHF) method with parameter set SKM * which can give reasonable density distribution for stable and neutron-rich nuclei [46]. One can obtain the radial positions of nucleons in the initial nuclei in terms of the Monte-Carlo method.…”

Recoil Mass Spectrometers in Low-Energy Nuclear Physics

“…A number of new high-spin states were observed in several nuclei and direct corroboration of the identification of 77Sr was obtained. The bottom panel shows the first in beam spectrum for 13Br (19), which is of particular interest in view of a predicted (20) change from prolate to oblate ground-state shapes in this region. No signifi cant evidence fo r 13Kr was fo und with this reaction, which suggests that the best estimates of production cross sections fo r these very neutron-deficient products are in error.…”