Spectroscopy of high spin states in /sup 73/Br

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.36.2409· OSTI ID:5660219

Heese, J; Lieb, K P; Luehmann, L; Ulbig, S; Woermann, B; Alber, D; Grawe, H; Haas, H; Spellmeyer, B

We report on the measurement of level energies, lifetimes, ..gamma..-ray intensities, and angular distributions in /sup 73/Br, obtained in the reactions /sup 40/Ca(/sup 36/Ar,3p) and /sup 40/Ca(/sup 40/Ca,..cap alpha..3p). The g factor of the 241 keV isomeric state (tau = 50 ns) was determined to be g = 1.31(9) from the Larmor precession in an external magnetic field. The fully aligned members of a rotationally aligned g/sub 9/2/ band were identified up to spin I/sup ..pi../ = (33/2/sup +/; the E2 transition strengths indicate a large prolate deformation decreasing from ..beta../sub 2/ = 0.37(4) to ..beta../sub 2/ = 0.33 at rotational frequency h-dash-bar..omega..approx. =0.45 MeV. The negative parity yrast bands with signatures ..cap alpha.. = +- 1/2 were established up to a probable spin of (37/2/sup -/. The ..cap alpha.. = +1/2 yrast band shows a one quasiparticle to three quasiparticle band transition at the same frequency, probably associated with the alignment of two g/sub 9/2/ protons. The structure of /sup 73/Br, which is very similar to that of /sup 75/Br, has been interpreted with the Strutinsky-Bogolyubov cranking and deformed configuration mixing models.

• Research Organization: II. Physikalisches Institut, Universitaet Goettingen, D-3400 Goettingen, Federal Republic of Germany
• OSTI ID: 5660219
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 36:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
ARGON 36 REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BROMINE 73
BROMINE ISOTOPES
CALCIUM 40 REACTIONS
CALCIUM 40 TARGET
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
COMPOUND-NUCLEUS REACTIONS
CONFIGURATION MIXING
DATA
DISTRIBUTION
E2-TRANSITIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
EXPERIMENTAL DATA
FERMIONS
GAMMA RADIATION
HADRONS
HEAVY ION REACTIONS
HIGH SPIN STATES
INFORMATION
INTERACTIONS
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOMERIC TRANSITIONS
ISOTOPES
LIFETIME
MEV RANGE
MEV RANGE 100-1000
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
PARITY
PARTICLE PROPERTIES
PROTONS
RADIATIONS
RADIOISOTOPES
ROTATIONAL STATES
SPIN
TARGETS
YRAST STATES