Fusion cross sections and thermonuclear reaction rates

1979 ◽  
Vol 50 (9) ◽  
pp. 5569-5571 ◽  
Author(s):  
Asher Peres
1994 ◽  
Vol 49 (2) ◽  
pp. 1205-1213 ◽  
Author(s):  
P. R. Wrean ◽  
C. R. Brune ◽  
R. W. Kavanagh

1985 ◽  
Vol 439 (1) ◽  
pp. 176-188 ◽  
Author(s):  
R.O. Weber ◽  
C.I.W. Tingwell ◽  
L.W. Mitchell ◽  
M.E. Sevior ◽  
D.G. Sargood

1995 ◽  
Vol 48 (1) ◽  
pp. 125
Author(s):  
A.J Morton ◽  
DG Sargood

Nuclear reaction cross sections derived from statistical-model calculations have been used in the calculation of thermonuclear reaction rates for 36 nuclei at temperatures that are representative of the interiors of evolving stars and supernovae as nucleosynthesis approaches the production of nuclei with N = 28. The statistical-model calculations used optical-model parameters in the particle channels which had been selected to give the best overall agreement between theoretical and experimental cross sections for reactions on stable target nuclei in the mass and energy ranges of importance for the stellar conditions of interest. The optical-model parameters used, and the stellar reaction rates obtained, are tabulated. Comparisons are made between these stellar rates and those from other statistical-model calculations in the literature.


1983 ◽  
Vol 36 (4) ◽  
pp. 583 ◽  
Author(s):  
DG Sargood

Values of the ratio of the thermonuclear reaction rate of a reaction, with target nuclei in a thermal distribution of energy states, to the reaction rate with all target nuclei in their ground states are tabulated for neutron, proton and (X-particle induced reactions on the naturally occurring nuclei from 2�Ne to 70Zn, at temperatures of 1, 2, 3�5 and 5 x 109 K. The ratios are determined from reaction rates based on statistical model cross sections.


1993 ◽  
Vol 551 (1) ◽  
pp. 158-172 ◽  
Author(s):  
V.Y. Hansper ◽  
A.J. Morton ◽  
S.G. Tims ◽  
C.I.W. Tingwell ◽  
A.F. Scott ◽  
...  

1982 ◽  
Vol 380 (2) ◽  
pp. 318-334 ◽  
Author(s):  
L.W. Mitchell ◽  
M.R. Anderson ◽  
S.R. Kennett ◽  
D.G. Sargood

1984 ◽  
Vol 62 (2) ◽  
pp. 134-140 ◽  
Author(s):  
M. A. Buckby ◽  
J. D. King

Absolute cross sections for the 28Si(α, p)31P and 54Fe(α, p)57Co reactions have been measured for laboratory bombarding energies over the range 5.52 ≤ Eα ≤ 12.00 MeV, using targets of approximately 4-keV thickness. Ground state reaction rates were then deduced from these cross sections and stellar rates were deduced by multiplying by the ratio of stellar-to-ground state rates obtained from statistical model calculations. Stellar rates for the reverse reactions have been determined and are fitted by a parametric equation for ease of interpolation. The experimental cross sections and rates have been compared with statistical model calculations and are in reasonable agreement for the 54Fe(α, p)57Co reaction but deviate by as much as a factor of three for the 28Si(α, p)31P reaction.


Sign in / Sign up

Export Citation Format

Share Document