Speaker
Description
The $^{3}$He($\alpha,\gamma$)$^{7}$Be reaction plays a significant role in Big Bang nucleosynthesis, as well as in stellar hydrogen burning. It affects the nucleosynthesis of primordial $^{7}$Li, as well as the theoretical prediction of solar $^{7}$Be and $^{8}$B neutrino fluxes.
A measurement of its $\gamma$-ray angular distribution was performed using the 5$\,$MV Pelletron accelerator at the Felsenkeller shallow-underground laboratory in Dresden. A $^4$He beam was used to irradiate solid $^3$He implanted targets. The prompt $\gamma$-rays were detected using more than 20 HPGe crystals surrounding the setup.
This contribution will report on experimental data in the energy range of $E_{cm} = 450 - 1220\,$keV, as well as its impact on S(0). Furthermore the results will be put into context of already existing data sets.
