Published January 24, 2008
| Version v1
Journal article
The SE1 factor of the 12C(α,γ)16O Reaction and the 16N β-delayed α Decay
Creators
- 1. University of Notre Dame, Notre Dame, IN 46530 (United States)
- 2. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- 3. Ohio University, Athens, Ohio 45701 (United States)
- 4. University of North Carolina, Chapel Hill, North Carolina 27599 (United States)
- 5. Northwestern University, Evanston, Illinois 60208 (United States)
Description
The 12C(α,γ)16O reaction is of great importance for the understanding the nuclear synthesis and explosion mechanism of the supernova. The cross section at the relevant stellar burning energies, around 300 keV, is dominated by the sub-threshold resonances. The 16N β-delayed α decay data provide the most sensitive constrain on this sub-threshold resonance. Using twin-ionization chambers, we have measured the α particles and 12C recoil nuclei in coincidence. The spectrum has been fitted together with the published 12C(α,γ)16O data and the elastic scattering phase shift data using R-matrix. The SE1 factor at 300 keV has been determined as 73±21 keVb
Additional details
Identifiers
- DOI
- 10.1063/1.2870303;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 972
- Journal Issue
- 1
- Journal Page Range
- p. 261-269
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- Carpathian summer school of physics 2007 on exotic nuclei and nuclear/particle astrophysics (II)
- Dates
- 21-31 Aug 2007
- Place
- Sinaia (Romania)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39069724
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALPHA DECAY; ALPHA PARTICLES; ALPHA REACTIONS; CARBON 12 TARGET; CROSS SECTIONS; ELASTIC SCATTERING; ENERGY SPECTRA; IONIZATION CHAMBERS; KEV RANGE; NITROGEN 16; NUCLEOSYNTHESIS; OXYGEN 16; PHASE SHIFT; PHOTONS; R MATRIX; RECOILS; RESONANCE; STAR BURNING; SUPERNOVAE
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BINARY STARS; BOSONS; CHARGED PARTICLES; CHARGED-PARTICLE REACTIONS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; ERUPTIVE VARIABLE STARS; EVEN-EVEN NUCLEI; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MASSLESS PARTICLES; MATRICES; MEASURING INSTRUMENTS; NITROGEN ISOTOPES; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; ODD-ODD NUCLEI; OXYGEN ISOTOPES; RADIATION DETECTORS; RADIATIONS; RADIOISOTOPES; SCATTERING; SECONDS LIVING RADIOISOTOPES; SPECTRA; STABLE ISOTOPES; STARS; SYNTHESIS; TARGETS; VARIABLE STARS
Optional Information
- Notes
- (c) 2008 American Institute of Physics