DEEP-INELASTIC REACTIONS - A NEW TOOL FOR NUCLEAR SPECTROSCOPY

Binary reaction products of Mo-92+Ni-60, Cd-106+Fe-54, Sn-124+Se-80,Ge -76, Pb-208+Ni-64 and Gd-160+S-36, Cl-37 heavy ion collisions 10-15% a bove the barrier have been studied in gamma-ray thick target experimen ts. The product yield distributions have been obtained for some of the reactions from gamma-gamma coincidence intensities as well as from ta rget radioactivity measurements. The mass transfer between colliding n uclei is discussed in terms of mass and charge equilibration processes . These deep inelastic processes were found to populate a large number of neutron-rich nuclei strongly enough for yrast spectroscopy studies . New spectroscopic results are presented for the sdf shell nuclei Si- 33, P-34, Cl-39, for (64),(65),(66),Ni-67 products and for heavy tin i sotopes (119),(121),(122),(123),(124) Sn. Also yrast excitations in th e Ni-68 have been identified showing a substantial subshell closure at neutron number N = 40.