Journal article
Search for a resonant enhancement of the Be-7 + d reaction and primordial Li-7 abundances
Physical review. C, Nuclear physics, Vol.84(4), 042801(R)
10/17/2011
DOI: 10.1103/PhysRevC.84.042801
Abstract
Big Bang nucleosynthesis calculations, constrained by the Wilkinson Microwave Anisotropy Probe results, produce Li-7 abundances almost a factor of four larger than those extrapolated from observations. Since primordial Li-7 is believed to be mostly produced by the beta decay of Be-7, one proposed solution to this discrepancy is a resonant enhancement of the Be-7(d, p)2 alpha reaction rate through the 5/2(+) 16.7-MeV state in B-9. The H-2(Be-7,d)Be-7 reaction was used to search for such a resonance; none was observed. An upper limit on the width of the proposed resonance was deduced.
Details
- Title: Subtitle
- Search for a resonant enhancement of the Be-7 + d reaction and primordial Li-7 abundances
- Creators
- P. D. O'Malley - Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USAD. W. Bardayan - Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USAA. S. Adekola - Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USAS. Ahn - University of Tennessee at KnoxvilleK. Y. Chae - Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USAJ. A. Cizewski - Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USAS. Graves - Tennessee Technological UniversityM. E. Howard - Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USAK. L. Jones - University of Tennessee at KnoxvilleR. L. Kozub - Tennessee Technological UniversityL. Lindhardt - Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USAM. Matos - Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USAB. M. Moazen - Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USAC. D. Nesaraja - Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USAS. D. Pain - Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USAW. A. Peters - Oak Ridge Associated Univ, Oak Ridge, TN 37830 USAS. T. Pittman - University of Tennessee at KnoxvilleK. T. Schmitt - University of Tennessee at KnoxvilleJ. F. Shriner - Tennessee Technological UniversityM. S. Smith - Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USAI. Spassova - Oak Ridge Associated Univ, Oak Ridge, TN 37830 USAS. Y. Strauss - Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USAJ. L. Wheeler - Tennessee Technological University
- Resource Type
- Journal article
- Publication Details
- Physical review. C, Nuclear physics, Vol.84(4), 042801(R)
- DOI
- 10.1103/PhysRevC.84.042801
- NLM abbreviation
- Phys Rev C Nucl Phys
- ISSN
- 0556-2813
- eISSN
- 1089-490X
- Publisher
- American Physical Society
- Number of pages
- 3
- Grant note
- Office of Nuclear Physics, US Department of Energy; United States Department of Energy (DOE) National Science Foundation; National Science Foundation (NSF) DE-FG52-08NA28552; DE-AC05-00OR22725 / National Nuclear Security Administration
- Language
- English
- Date published
- 10/17/2011
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Radiation Oncology
- Record Identifier
- 9984383317602771
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