Measurement of the internal pair emission branch of the 7. 654-MeV state of /sup 12/C, and the rate of the stellar triple-. cap alpha. reaction
Journal Article
·
· Phys. Rev., C; (United States)
The internal pair decay of the 0/sup +/ 7.65-MeV state of /sup 12/C has been observed in coincidence with inelastic protons from /sup 12/C(p,p')/sup 12/C(7.65), using a plastic scintillator of essentially 4..pi.. sr solid angle. The branching ratio measured, GAMMA/sub ..pi..//GAMMA = (6.0 +- 1.1) x 10/sup -6/, is in excellent agreement with the previous measurement by Alburger, and reduces the uncertainty in the stellar triple-..cap alpha.. reaction rate by almost a factor of 2. Implications for the astrophysical production of /sup 12/C and /sup 16/O are discussed.
- Research Organization:
- Cyclotron Laboratory and Physics Department, Michigan State University, East Lansing, Michigan 48824
- OSTI ID:
- 7228632
- Journal Information:
- Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:3; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of the radiative branching ratio for the 7. 65-MeV state in /sup 12/C using the cascade gamma decays
Limits for the 3[alpha] branching ratio of the decay of the 7. 65 MeV, 0[sub 2][sup +] state in [sup 12]C
THREE-ALPHA DECAY OF C$sup 12$* (16.11 MEV)
Journal Article
·
Sat May 01 00:00:00 EDT 1976
· Phys. Rev., C; (United States)
·
OSTI ID:7285465
Limits for the 3[alpha] branching ratio of the decay of the 7. 65 MeV, 0[sub 2][sup +] state in [sup 12]C
Journal Article
·
Thu Mar 31 23:00:00 EST 1994
· Physical Review, C (Nuclear Physics); (United States)
·
OSTI ID:5016661
THREE-ALPHA DECAY OF C$sup 12$* (16.11 MEV)
Journal Article
·
Tue Oct 31 23:00:00 EST 1961
· Zeitschrift fuer Naturforschung (West Germany) Divided into Z. Nautrforsch., A, and Z. Naturforsch., B: Anorg. Chem., Org. Chem., Biochem., Biophys.,
·
OSTI ID:4804093
Related Subjects
640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
651323* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Energy Levels & Transitions-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BRANCHING RATIO
CARBON 12
CARBON 12 TARGET
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
HADRON REACTIONS
INELASTIC SCATTERING
INTERACTIONS
INTERNAL PAIR PRODUCTION
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 01-10
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEOSYNTHESIS
OXYGEN 16
OXYGEN ISOTOPES
PAIR PRODUCTION
PROTON REACTIONS
SCATTERING
STABLE ISOTOPES
STAR MODELS
TARGETS
Radio & X-Ray Sources
651323* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Energy Levels & Transitions-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BRANCHING RATIO
CARBON 12
CARBON 12 TARGET
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
HADRON REACTIONS
INELASTIC SCATTERING
INTERACTIONS
INTERNAL PAIR PRODUCTION
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 01-10
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEOSYNTHESIS
OXYGEN 16
OXYGEN ISOTOPES
PAIR PRODUCTION
PROTON REACTIONS
SCATTERING
STABLE ISOTOPES
STAR MODELS
TARGETS