Electromagnetic decay properties of high spin states in [sub 43][sup 91]Tc[sub 48]

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.66· OSTI ID:5286495

Rudolph, D; Gross, C J; Harder, A; Kabadiyski, M K; Lieb, K P; Weiszflog, M ^[1]; Altmann, J; Dewald, A; Eberth, J; Mylaeus, T ^[2]; Grawe, H; Heese, J; Maier, K ^[3]

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1. II. Physikalisches Institut, Universitaet Goettingen, D-37073 Goettingen (Germany)
2. Institut fuer Kernphysik der Universitaet zu Koeln, D-50937 Koeln (Germany)
3. Hahn-Meitner-Insitut GmbH, D-14109 Berlin (Germany)

High spin states in the nucleus [sup 91]Tc have been studied via the fusion evaporation reaction [sup 58]Ni ([sup 36]Ar, 3[ital p]) [sup 91]Tc, at 149 MeV and 140 MeV beam energy. The OSIRIS spectrometer, an additional high purity Ge detector at 162[degree], and several particle detectors were used to measure [gamma][gamma]- and particle-[gamma][gamma] coincidences, directional correlations of oriented states and line shapes due to Doppler-shift attenuation. Lifetimes in the 10[sup [minus]12]--10[sup [minus]9] s range were measured by the recoil distance Doppler-shift method. Some 110 transitions were placed into a level scheme comprising 51 levels reaching up to 12.2 MeV excitation energy and a possible spin [ital I]=49/2[h bar]. A large number of spin-paritly assignments and [ital E]2/[ital M]1 mixing ratios and lifetimes were deduced. This extensive data set is used for a detailed test of shell model calculations. They were performed with different sets of parameters, within either a restricted [pi]([ital p][sub 1/2]), [pi]([ital g][sub 9/2]), [nu]([ital p][sub 1/2]), and [nu]([ital g][sub 9/2]) configuration space or an enlarged configuration space including the [pi]([ital p][sub 3/2]) and [pi]([ital f][sub 5/2]) orbits.

• OSTI ID: 5286495
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663220* -- Electromagnetic Transitions-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
ARGON 36 REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CORRELATIONS
E2-TRANSITIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FERMIONS
GAMMA CASCADES
GAMMA SPECTROSCOPY
HADRONS
HEAVY ION REACTIONS
HIGH SPIN STATES
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIFETIME
M1-TRANSITIONS
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NICKEL 58 TARGET
NUCLEAR CASCADES
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
PROTONS
RADIOISOTOPES
SPECTROSCOPY
TARGETS
TECHNETIUM 91
TECHNETIUM ISOTOPES