beta. /sup +/--electron-capture decay of /sup 69/Se

Journal Article · Wed Jun 01 00:00:00 EDT 1988 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.37.2687· OSTI ID:5261791

Dessagne, P; Miehe, C; Baumann, P; Huck, A; Klotz, G; Ramdane, M; Walter, G; Maison, J M

The ..beta../sup +/--electron-capture decay of /sup 69/Se, produced via the /sup 40/Ca(/sup 32/S, 2pn)/sup 69/Se reaction, has been studied by ..beta..-delayed proton and ..gamma..-ray emissions using the recoil transport helium jet technique. The established decay scheme for /sup 69/Se involves 13 up to now unreported ..gamma.. emitting levels in /sup 69/As. The total proton branching ratio has been measured to be (4.5 +- 1.0) x 10/sup -4/. The autocorrelation analysis of the delayed proton spectra indicates a level spacing in agreement with the back shifted Fermi gas model estimates. The Gamow-Teller beta strength distribution has been measured in 95% of the Q/sub ..beta../ window, up to 6.5 MeV excitation energy in /sup 69/As.

• Research Organization: Centre de Recherches Nucleaires, 67037 Strasbourg, France
• OSTI ID: 5261791
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 37:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651520 -- Nuclear Properties & Reactions
A=39-58
Experimental
651620* -- Nuclear Properties & Reactions
A=59-89
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
ARSENIC 69
ARSENIC ISOTOPES
BARYONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY
BETA-PLUS DECAY RADIOISOTOPES
BRANCHING RATIO
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
COMPOUND-NUCLEUS REACTIONS
DECAY
DELAYED PROTONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EVEN-ODD NUCLEI
FERMIONS
FT VALUE
GAMMA RADIATION
HADRONS
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NEUTRON SPECTRA
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
PARITY
PARTICLE PROPERTIES
PROBABILITY
PROTON SPECTRA
PROTONS
RADIATIONS
RADIOISOTOPES
RECOILS
SELENIUM 69
SELENIUM ISOTOPES
SPECTRA
SPIN
SULFUR 32 REACTIONS