Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2003-08-19
AIP Conf.Proc. 698 (2004) 172-175; Eur.Phys.J. A24S2 (2005) 155-158
Physics
High Energy Physics
High Energy Physics - Experiment
5 pages, 2 figures, LaTeX2e, to be published in CIPANP 2003 proceedings
Scientific paper
10.1063/1.1664219
The Qweak experiment at Jefferson Lab aims to make a 4% measurement of the parity-violating asymmetry in elastic scattering at very low $Q^2$ of a longitudinally polarized electron beam on a proton target. The experiment will measure the weak charge of the proton, and thus the weak mixing angle at low energy scale, providing a precision test of the Standard Model. Since the value of the weak mixing angle is approximately 1/4, the weak charge of the proton $Q_w^p = 1-4 \sin^2 \theta_w$ is suppressed in the Standard Model, making it especially sensitive to the value of the mixing angle and also to possible new physics. The experiment is approved to run at JLab, and the construction plan calls for the hardware to be ready to install in Hall C in 2007. The theoretical context of the experiment and the status of its design are discussed.
for the Qweak Collaboration
Mitchell Gregory S.
No associations
LandOfFree
Qweak: A Precision Measurement of the Proton's Weak Charge does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Qweak: A Precision Measurement of the Proton's Weak Charge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Qweak: A Precision Measurement of the Proton's Weak Charge will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-384383