Year: 2001
Type: article
Abstract: We have measured the cross section of the ${}^{7}\mathrm{Be}(p,\ensuremath{\gamma}{)}^{8}\mathrm{B}$ reaction for ${E}_{\mathrm{c}.\mathrm{m}.}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}185.8$, 134.7, and 111.7 keV using a radioactive ${}^{7}\mathrm{Be}$ target (132 mCi). Single and coincidence spectra of ${\ensuremath{\beta}}^{+}$ and $\ensuremath{\alpha}$ particles from ${}^{8}\mathrm{B}$ and ${}^{8}{\mathrm{Be}}^{*}$ decay, respectively, were measured using a large acceptance spectrometer. The zero energy $S$ factor inferred from these data is $18.5\ifmmode\pm\else\textpm\fi{}2.4\mathrm{eV}\mathrm{b}$ and a weighted mean value of $18.8\ifmmode\pm\else\textpm\fi{}1.7\mathrm{eV}\mathrm{b}$ (theoretical uncertainty included) is deduced when combining this value with our previous results at higher energies.
Source: Physical Review Letters
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2594875264