Published October 2011
| Version v1
Journal article
Search for a resonant enhancement of the 7Be + d reaction and primordial 7Li abundances
Creators
- O'Malley, P. D.1
- Adekola, A. S.1
- Cizewski, J. A.1
- Howard, M. E.1
- Strauss, S. Y.1
- Bardayan, D. W.2
- Nesaraja, C. D.2
- Pain, S. D.2
- Smith, M. S.2
- Ahn, S.3
- Jones, K. L.3
- Pittman, S. T.3
- Schmitt, K. T.3
- Chae, K. Y.4, 2
- Graves, S.5
- Kozub, R. L.5
- Shriner, J. F. Jr.5
- Wheeler, J. L.5
- Lindhardt, L.6
- Matos, M.6
- and others
- 1. Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903 (United States)
- 2. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
- 3. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States)
- 4. Department of Physics, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of)
- 5. Department of Physics, Tennessee Technological University, Cookeville, Tennessee 38505 (United States)
- 6. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803 (United States)
Description
Big Bang nucleosynthesis calculations, constrained by the Wilkinson Microwave Anisotropy Probe results, produce 7Li abundances almost a factor of four larger than those extrapolated from observations. Since primordial 7Li is believed to be mostly produced by the beta decay of 7Be, one proposed solution to this discrepancy is a resonant enhancement of the 7Be(d,p)2α reaction rate through the 5/2+ 16.7-MeV state in 9B. The 2H(7Be,d)7Be reaction was used to search for such a resonance; none was observed. An upper limit on the width of the proposed resonance was deduced.
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 84
- Journal Issue
- 4
- Journal Page Range
- p. 042801-042801.3
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43079810
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ABUNDANCE; ALPHA PARTICLES; ANISOTROPY; BERYLLIUM 7 REACTIONS; BERYLLIUM 7 TARGET; BETA DECAY; BORON 9; COMPUTERIZED SIMULATION; DEUTERIUM; DEUTERIUM TARGET; DEUTERON REACTIONS; LITHIUM 7; MESONS; MEV RANGE 10-100; MICROWAVE RADIATION; NUCLEOSYNTHESIS; PROTON-EMISSION DECAY; REACTION KINETICS; RESONANCE
- Descriptors DEC
- ALPHA DECAY RADIOISOTOPES; BORON ISOTOPES; BOSONS; CHARGED PARTICLES; CHARGED-PARTICLE REACTIONS; DECAY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; HADRONS; HEAVY ION REACTIONS; HYDROGEN ISOTOPES; IONIZING RADIATIONS; ISOTOPES; KINETICS; LIGHT NUCLEI; LITHIUM ISOTOPES; MEV RANGE; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; RADIATIONS; RADIOISOTOPES; SIMULATION; STABLE ISOTOPES; SYNTHESIS; TARGETS
Optional Information
- Notes
- (c) 2011 American Institute of Physics