Speaker
Mr
Stefan Lunkenheimer
(KPH)
Description
MAGIX is a versatile fixed-target experiment and will be built on the new accelerator MESA (Mainz Energy-Recovering Superconducting Accelerator) in Mainz. The accelerator will deliver polarized electron beams with currents up to $1\,\mathrm{mA}$ and energy up to $105\,\mathrm{MeV}$. Using its internal gas-target, MAGIX will reach a luminosity of $\mathcal{O}(10^{35}\,\mathrm{cm}^{−2}\mathrm{s}^{−1})$. This allows to study processes with very low cross section at small momentum transfer in a rich physical program.
The poster presents the planned measurements of the nucleosynthesis process $^{12}\mathrm C(\alpha,\gamma)^{16}\mathrm O$ to determine its S-factor. In the experiment we will scatter electrons on oxygen atoms and we will detect the scattered electrons in coincidence with the produced $\alpha$-particles. With this measurement we will determine the cross section of the inverse kinematic as a function of the outgoing center of mass energy of the carbon-$\alpha$-system to calculate the S-factor. Hereby we will present the results of the actual simulations and the parameter range that MAGIX will be able to explore. Additionally the planned experimental setup will be discussed.
Primary author
Mr
Stefan Lunkenheimer
(KPH)
