Measurement of the excitation energy of the 7. 654 MeV state of /sup 12/C and the rate of the 3. cap alpha. reaction
Journal Article
·
· Phys. Rev., C; (United States)
The excitation energy of the second excited state of /sup 12/C has been measured to be 7654.00 +- 0.20 keV. Combining this result with the recent precise measurement of the atomic mass of /sup 4/He by Smith and Wapstra, the Q value for the reaction 3..cap alpha.. ..-->.. /sup 12/C(7654.00) is determined to be 379.31 +- 0.21 keV. This result implies a change of +9%, at a stellar temperature of 10/sup 8/ K, in the 3..cap alpha.. reaction rate quoted in the recent compilation of Fowler, Caughlan, and Zimmerman. (AIP)
- Research Organization:
- Cyclotron Laboratory and Physics Department, Michigan State University, East Lansing, Michigan 48824
- OSTI ID:
- 7365007
- Journal Information:
- Phys. Rev., C; (United States), Vol. 13:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 TARGET
PROTON REACTIONS
NITROGEN 15 TARGET
OXYGEN 16 TARGET
ELASTIC SCATTERING
ENERGY LEVELS
EXCITATION
Q-VALUE
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
ENERGY
ENERGY-LEVEL TRANSITIONS
HADRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
SCATTERING
TARGETS
651325* - Nuclear Properties & Reactions
A=6-19
Experimental- Nuclear Reactions & Scattering- (-1987)
651323 - Nuclear Properties & Reactions
A=6-19
Experimental- Energy Levels & Transitions- (-1987)
CARBON 12 TARGET
PROTON REACTIONS
NITROGEN 15 TARGET
OXYGEN 16 TARGET
ELASTIC SCATTERING
ENERGY LEVELS
EXCITATION
Q-VALUE
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
ENERGY
ENERGY-LEVEL TRANSITIONS
HADRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
SCATTERING
TARGETS
651325* - Nuclear Properties & Reactions
A=6-19
Experimental- Nuclear Reactions & Scattering- (-1987)
651323 - Nuclear Properties & Reactions
A=6-19
Experimental- Energy Levels & Transitions- (-1987)