English

Measuring the weak mixing angle with the P2 experiment at MESA

Instrumentation and Detectors 2016-12-20 v1 High Energy Physics - Experiment Nuclear Experiment

Abstract

The P2 experiment in Mainz aims to measure the weak mixing angle in electron- proton scattering to a precision of 0.13 %. In order to suppress uncertainties due to proton structure and contributions from box graphs, both a low average momentum transfer Q2Q^2 of 4.51034.5\cdot 10^{-3} GeV2/c2^2/c^2 and a low beam energy of 155 MeV are chosen. In order to collect the enormous statistics required for this measurement, the new Mainz Energy Recovery Superconducting Accelerator (MESA) is being constructed. These proceedings describe the motivation for the measurement, the experimental and accelerator challenges and how we plan to tackle them.

Keywords

Cite

@article{arxiv.1511.03934,
  title  = {Measuring the weak mixing angle with the P2 experiment at MESA},
  author = {Niklaus Berger and Kurt Aulenbacher and Sebastian Baunack and Dominik Becker and Jürgen Diefenbach and Michael Gericke and Kathrin Gerz and Ruth Herbertz and Krishna Kumar and Frank Maas and Matthias Molitor and David Rodríguez Piñeiro and Iurii Sorokin and Paul Souder and Hubert Spiesberger and Alexey Tyukin and Valery Tyukin and Marco Zimmermann},
  journal= {arXiv preprint arXiv:1511.03934},
  year   = {2016}
}

Comments

Proceedings of the PhiPsi15, Sep. 23-26, 2015, Hefei, China

R2 v1 2026-06-22T11:43:40.064Z