Energy of the 4[sup (+)] isomer and new bands in the odd-odd nucleus [sup 74]Br

• Published in: Physical review. C, Nuclear physics Nuclear physics, 1993-06, Vol.47:6
• Main Authors: Doering, J., Holcomb, J.W., Johnson, T.D., Riley, M.A., Tabor, S.L., Womble, P.C., Winter, G.
• Format: Article
• Language: English
• Subjects: 663220 > Electromagnetic Transitions-- (1992-); 663450 > Heavy-Ion-Induced Reactions & Scattering-- (1992-); 663540 > Nuclear Mass Ranges-- A=39-58-- (1992-); BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BROMINE 74; BROMINE ISOTOPES; CARBON 12 REACTIONS; CHARGED-PARTICLE REACTIONS; COINCIDENCE METHODS; COPPER 65 TARGET; COUNTING TECHNIQUES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; FERMIONS; FLUORINE 19 REACTIONS; HADRONS; HEAVY ION REACTIONS; HIGH SPIN STATES; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITIONS; ISOTOPES; MEV RANGE; MEV RANGE 10-100; MINUTES LIVING RADIOISOTOPES; NEUTRONS; NICKEL 58 TARGET; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ODD-ODD NUCLEI; PROTONS; RADIOISOTOPES; TARGETS 663110 > General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
• ISSN: 0556-2813; 1089-490X
• DOI: 10.1103/PhysRevC.47.2560

High-spin states of the odd-odd nucleus [sup 74]Br were investigated via the reactions [sup 58]Ni ([sup 19]F,2[ital pn])[sup 74]Br and [sup 65]Cu([sup 12]C,3[ital n])[sup 74]Br at beam energies of 62 and 50 MeV, respectively. On the basis of coincidence data new levels have been introduced and partly grouped into rotational bands. Some of these new states decay to known levels of negative-parity bands built on both the ground state and the long-lived 4[sup (+)] isomer. Thus, an excitation energy of 13.8 keV has been deduced for the long-lived isomer in [sup 74]Br. The level sequences observed are interpreted in terms of Nilsson configurations in conjunction with collective excitations.