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Gamma-ray spectroscopy of low-lying states in /sup 56/Cr

Journal Article · · Phys. Rev., C; (United States)
; ; ; ;
Nuclear properties of the excited states below 3.2 MeV in /sup 56/Cr were studied in the /sup 54/Cr(t, p..gamma..)/sup 56/Cr reaction at E/sub t/ = 2.9 MeV. Reaction-produced protons were detected at 171degree +- 4degree to the beam in coincidence with ..gamma.. rays. ..gamma..-ray angular correlations and branching ratios were measured using an array of five NaI(Tl) crystals, while ..gamma..-ray energies and lifetime limits were obtained using a Ge(Li) detector. Spin assignments for some of the excited states were obtained in addition to multipole mixing-ratio information. The results for the excitation energies (keV), spins, and lifetimes (psec) are: 1007.6 +- 1.5, 2, > or =2; 1832.2 +- 2.6, 2, undetermined; 2327.8 +- 2.6, 2, < or =0.08; 2687 +- 13, 1, 2, 3, or 4, undetermined; 3165.6 +- 6.2, 2, 3, or 4, < or =0.3. The results are compared with shell-model calculations. (AIP)
Research Organization:
Lockheed Palo Alto Research Laboratory, Palo Alto, California 94304
OSTI ID:
7250420
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 14:5; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651523* -- Nuclear Properties &amp; Reactions
A=39-58
Experimental-- Energy Levels &amp; Transitions-- (-1987)
651525 -- Nuclear Properties &amp; Reactions
A=39-58
Experimental-- Nuclear Reactions &amp; Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BRANCHING RATIO
CHARGED-PARTICLE REACTIONS
CHROMIUM 54 TARGET
CHROMIUM 56
CHROMIUM ISOTOPES
COINCIDENCE SPECTROMETRY
CORRELATIONS
DIRECT REACTIONS
ENERGY RANGE
EVEN-EVEN NUCLEI
GAMMA SPECTRA
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIFETIME
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 01-10
MINUTES LIVING RADIOISOTOPES
MIXING RATIO
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
SHELL MODELS
SPECTRA
SPIN
STRIPPING
TARGETS
TRANSFER REACTIONS
TRITON REACTIONS