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Primordial lithium - New reaction rates, new abundances, new constraintsNewly measured nuclear reaction rates for H-3(alpha, gamma)Li-7 (higher than previous values) and Li-7(p, alpha)He-4 (lower than previous values) are shown to increase the Li-7 yield from big band nucleosynthesis for lower baryon-to-photon ratio (less than about 4 x 10 to the 10th). Recent revisions in the He-3(alpha, gamma)Be-7 and the D(p, gamma)He-3 rates enhance the high (greater than 4 x 10 to the 10th) Li-7(Be) production. New, independent determinations of Li abundances in extreme population II stars are in excellent agreement with the work of Spites and give continued confidence in the use of Li-7 in big bang baryon density determinations.
Document ID
19880043918
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kawano, Lawrence
(NASA Lewis Research Center Cleveland, OH, United States)
Schramm, David
(NASAFermilab Astrophysics Center Batavia; Chicago, University, IL, United States)
Steigman, Gary
(Ohio State University Columbus, United States)
Date Acquired
August 13, 2013
Publication Date
April 15, 1988
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 327
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
88A31145
Distribution Limits
Public
Copyright
Other

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