Evidence for deformation in

Onset of isomers inCd125,126,127,128and weakened neutron-neutron interaction strength

“…Our data are consistent with an isomer with spin 27/2 − and branched decay as shown in Fig. 3 where the known levels in the lighter odd-mass Cd isotopes are also shown [21][22][23][24]. The observation of the 720-and 743-keV γ rays in all three experiments indicates that these two transitions should de-excite the two lowest levels, although the order of these transitions cannot be determined.…”

“…Thus, these two levels could be driven together in 125 Cd to produce a low-energy isomeric 19/2 + to 19/2 − transition. Buforn et al, have also shown a close connection between the positions of a 25/2 + level in midshell odd-mass Cd isotopes and the 7 − level in adjacent even-even isotopes [22]. Therefore, the 436-keV drop in the position of the 7 − level could also lower the position of the 25/2 + level to a [21][22][23] are also included for systematic comparison.…”

“…Buforn et al, have also shown a close connection between the positions of a 25/2 + level in midshell odd-mass Cd isotopes and the 7 − level in adjacent even-even isotopes [22]. Therefore, the 436-keV drop in the position of the 7 − level could also lower the position of the 25/2 + level to a [21][22][23] are also included for systematic comparison. The relative positions for the 1/2 + , 3/2 + , and 11/2 − levels are taken from Huck et al [24].…”

Promptγ-ray spectroscopy of the neutron-rich124Cd

“…As much of the medium-to-high spin data on nuclei in the neutron-rich mass 80 − 160 regions comes from prompt -ray spectroscopy measurements of spontaneous fission sources then the studies of the symmetric fission region are incomplete. Previous light-ion induced fission reactions have studied the Cd, In and Sn nuclei [6][7][8] though the target-projectile combination chosen did not give a product distribution as neutron-rich as the one reported in the present work.…”