High-spin states in the odd-odd nucleus /sup 212/At

Journal Article · Sat Sep 01 00:00:00 EDT 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.20.960· OSTI ID:6089680

Sjoreen, T P; Garg, U; Fossan, D B; Beene, J R; Alexander, T K; Earle, E D; Haeusser, O; McDonald, A B

The properties of high-spin states in /sup 212/At, including three isomers, have been studied with the /sup 208/Pb(/sup 7/Li,3n)/sup 212/At reaction. In-beam measurements with Ge(Li) and intrinsic Ge detectors of ..gamma..-ray excitation functions, ..gamma..-..gamma.. coincidences, ..gamma..-ray angular distributions, pulsed-beam-..gamma.. timing, and perturbed angular distributions with an applied magnetic field were made to establish a decay scheme, level energies, ..gamma..-ray multipolarities, spin-parity assignments, isomeric lifetimes, and g factors. High-spin states up to 15h were identified as predominantly three proton ((..pi..h/sub 9/2/)/sup 3/ or (..pi..h/sub 9/2/)/sup 2/(..pi..i/sub 13/2/)) states of the (N=126) /sup 211/At nucleus coupled to a neutron in either the g/sub 9/2/, i/sub 11/2/, or j/sub 15/2/ orbitals. The experimental energy levels, g factors, and B (M2) value are compared with shell model calculations.

• Research Organization: Department of Physics, State University of New York, Stony Brook, New York 11794
• OSTI ID: 6089680
• Journal Information: Phys. Rev., C; (United States), Vol. 20:3
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASTATINE 212
ENERGY-LEVEL TRANSITIONS
HIGH SPIN STATES
LEAD 208 TARGET
LITHIUM 7 REACTIONS
FUSION REACTIONS
ANGULAR DISTRIBUTION
COINCIDENCE SPECTROMETRY
EVAPORATION MODEL
EXCITATION FUNCTIONS
GAMMA SPECTRA
ISOMERIC TRANSITIONS
LANDE FACTOR
LIFETIME
MULTIPOLARITY
NEUTRON SPECTRA
NEUTRONS
PARITY
SHELL MODELS
SPIN
ALPHA DECAY RADIOISOTOPES
ANGULAR MOMENTUM
ASTATINE ISOTOPES
BARYONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY LEVELS
FERMIONS
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
PARTICLE PROPERTIES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTRA
TARGETS
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