Semiempirical thermonuclear reaction-rate data for intermediate-mass nuclei

Journal Article · Wed Nov 01 00:00:00 EST 1978 · At. Data Nucl. Data Tables; (United States)

DOI:https://doi.org/10.1016/0092-640X(78)90018-9· OSTI ID:5786082

Woosley, S E; Fowler, W A; Holmes, J A; Zimmerman, B A

Given here are analytic formulas and fitting parameters which adequately represent the results of statistical thermonuclear reaction-rate calculations for over 300 target nuclei having atomic numbers in the range 8< or =Z< or =36 (oxygen through krypton) for temperatures in the range 5 x 10/sup 7/< or =T< or =10/sup 10/ K. These parametrized formulas will be useful to those involved in calculations of energy generation and nucleosynthesis in thermal environments as in stars and supernovae. All exoergic binary reactions involving an intermediate-mass nucleus reacting with n, p, ..cap alpha.., or ..gamma.. in an entrance or exit channel are considered. Ratios for determining the reverse reaction rate are given. These reaction rates have been calculated using global Hauser-Feshbach theory under the assumption that the incident particles have achieved an equilibrium distribution of center-of-mass energies and that all the excited states of each target nucleus are in equilibrium with the ground states of those nuclei. Experimentally determined excited states have been employed in the calculations where available. Otherwise a theoretical nuclear level-density expression was used. Parametrized nuclear partition functions are given for 0< or =T< or =10/sup 10/ K as well as nuclear level-density information.

• Research Organization: W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125
• OSTI ID: 5786082
• Journal Information: At. Data Nucl. Data Tables; (United States), Journal Name: At. Data Nucl. Data Tables; (United States) Vol. 22:5; ISSN ADNDA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
BARYON REACTIONS
CAPTURE
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
DATA FORMS
DIRECT REACTIONS
ENERGY-LEVEL DENSITY
FUNCTIONS
HADRON REACTIONS
HAUSER-FESHBACH THEORY
INTERMEDIATE MASS NUCLEI
KINETICS
MULTI-NUCLEON TRANSFER REACTIONS
NEUTRON REACTIONS
NUCLEAR REACTION KINETICS
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEI
NUCLEON REACTIONS
NUCLEOSYNTHESIS
PARTITION FUNCTIONS
PROTON REACTIONS
REACTION KINETICS
TABLES
THERMONUCLEAR REACTIONS
THREE-NUCLEON TRANSFER REACTIONS
TRANSFER REACTIONS