PoS - Proceedings of Science
Volume 346 - 23rd International Spin Physics Symposium (SPIN2018) - Parallel Session: Fundamental Symmetries and Spin Physics Beyond the Standard Model (D. Dutta and A. Wirzba)
Status of the P2 Experiment: A Measurement of the Weak Mixing Angle at Low Energy
S. Baunack*, D. Becker, K. Imai and F. Maas
Full text: pdf
Pre-published on: August 19, 2019
Published on: August 23, 2019
Abstract
The P2 experiment at the upcoming MESA accelerator in Mainz aims for a high precision measurement of the Weak Mixing Angle at low momentum transfer. Access is given by measuring the parity violating asymmetry in the elastic scattering of polarized electrons off unpolarized protons. Deviations in the observed value from the Standard Model expectation give hints to new physics beyond the Standard Model. We present the planned setup and studies on the achievable precision. Further options by using nuclear targets are also discussed.
DOI: https://doi.org/10.22323/1.346.0081
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