Speaker
Description
The weak mixing angle can be measured in parity-violating elastic electron-proton scattering. The aim of the P2 experiment is a very precise measurement of the weak mixing angle with an accuracy of 0.15% at a low four-momentum transfer of Q2 = 4.5x10^{-3} GeV^2. In combination with existing measurements at the Z pole with comparable accuracy, this comprises a test of the standard model with a sensitivity towards new physics up to a mass scale of 50 TeV. In addition to the measurement using a liquid hydrogen target, other targets, such as carbon and lead, are considered for measuring parity-violating elastic electron scattering. The experiment will be built at the future MESA accelerator in Mainz. In this talk, the motivation and challenges for these measurements will be discussed.
| Keyword-1 | Standard Model Test |
|---|---|
| Keyword-2 | Electron scattering |
| Keyword-3 | Fundamental Symmetries |
