Speaker
Matthias Molitor
(Johannes Gutenberg-Universität Mainz)
Description
The P2 Experiment at the new Mainz Energy-recovering Superconducting Accelerator (MESA) aims at measuring the Weinberg-angle $\theta_\text{W}$ at low Q$^2$ with high precision. Therefore the polarization of the incident electron beam has to be known with a very high accuracy (< 0.3 %). A conventional Mott-polarimeter requires a lot of effort and expanses in calibration to be able to acieve this goal, if at all possible.
The Double Scattering Polarimeter (DSP) promises to be able to meet the requirements with comparably small effort.
In the talk I will discuss the principles of the DSP and present first measurements.
Primary author
Matthias Molitor
(Johannes Gutenberg-Universität Mainz)
