Speaker
Mr
Dominik Becker
(Johannes-Gutenberg Universität Mainz)
Description
After a series of parity violation electron scattering experiments in order to explore the
strangeness content of the nucleon, we plan on a new, improved parity violation experiment where we will measure the weak charge of the proton with a
relative accuracy of 1.7%. This accuracy results in a measurement of the
effective electroweak mixing angle sin^2 theta_W of 1.5 per mille, in
accuracy comparable to the present accuracy stemming from measurements at the Z-pole. It can test new physics beyond the standard model
up to a scale Lambda = 6,4 TeV.
The measurement will be performed a low beam energy of 137 MeV up to
200 MeV with an Q^2 of 0.022 up to 0.049 (Gev/c)^2.
The expected accuracy will be discussed and the experimental strategy will be presented.
Primary author
Prof.
Frank Maas
(Helmholtz-Institut Mainz)
Co-author
Mr
Dominik Becker
(Johannes-Gutenberg Universität Mainz)