Relative production rates of $^{6}$He, $^{9}$Be, $^{12}$C in astrophysical environments

Details Relative production rates of $^{6}$He, $^{9}$Be, $^{12}$C in astrophysical environments Relative production rates of $^{6}$He, $^{9}$Be, $^{12}$C in astrophysical environments

2010-05-31

arxiv.org/abs/1005.5647v2

Europhys.Lett.90:52001,2010

Physics

Nuclear Physics

Nuclear Theory

5 pages, 4 figures

Scientific paper

10.1209/0295-5075/90/52001

We assume an environment of neutrons and $\alpha$-particles of given density and temperature where nuclear syntheses into $^{6}$He, $^{9}$Be and $^{12}$C are possible. We investigate the resulting relative abundance as a function of density and temperature. When the relative abundance of $\alpha$-particles $Y_{\alpha}$ is between 0.2 and 0.9, or larger than 0.9, the largest production is $^{9}$Be or $^{12}$C, respectively. When $Y_{\alpha}<0.2$ $^{6}$He is mostly frequently produced for temperatures above about 2 GK whereas the $^{9}$Be production dominates at smaller temperatures.

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