Measurement of the radiative branching ratio for the 7. 65-MeV state in /sup 12/C using the cascade gamma decays

Journal Article · Sat May 01 04:00:00 EDT 1976 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.13.2033· OSTI ID:7285465

Obst, A W; Braithwaite, W J

A measurement of the cascade ..gamma.. radiation from the 7.65-MeV J/sup pi/=0/sup +/ state in /sup 12/C is reported. The cascade ..gamma.. radiation through the 4.44-MeV J/sup pi/=2/sup +/ state in /sup 12/C is responsible for 98% of stellar /sup 12/C production, the remaining 2% proceeding by E0 pair decay. The two E2 ..gamma.. rays were measured in coincidence with inelastically scattered protons which resonantly populated the 7.65-MeV state at E/subp/ = 10.48 MeV. A high efficiency detection system was used, consisting of four 12.5-cm x 12.5-cm NaI ..gamma.. detectors and four silicon surface barrier particle counters. A value of (4.09 +- 0.29) x 10/sup -4/ was obtained for the radiative branching ratio, in agreement with the larger of the two sets of values previously reported. (AIP)

• Research Organization: Center for Nuclear Studies, University of Texas at Austin, Texas 78712
• OSTI ID: 7285465
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Journal Issue: 5 Vol. 13:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651323* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BRANCHING RATIO
CARBON 12
CARBON ISOTOPES
DECAY
ENERGY SOURCES
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
GAMMA CASCADES
ISOTOPES
LIGHT NUCLEI
NUCLEAR CASCADES
NUCLEI
STABLE ISOTOPES
STARS