Measurement of the Proton's Weak Charge at the Qweak Experiment

Details Measurement of the Proton's Weak Charge at the Qweak Experiment Measurement of the Proton's Weak Charge at the Qweak Experiment

2011-10-10

arxiv.org/abs/1110.2218v1

Physics

High Energy Physics

High Energy Physics - Experiment

Proceedings of the DPF-2011 Conference, 7 pages, 6 figures

Scientific paper

The Qweak experiment at Jefferson Laboratory measures the parity violating asymmetry of polarized electrons scattering from a proton target at very low momentum transfer. In the Standard Model, this asymmetry reveals the proton's coupling to the neutral vector current, the weak charge. This value, measured directly for the first time, will provide a precision test of the Standard Model and will constrain the possibility of relevant physics beyond the Standard Model. The planned precision will probe certain classes of new physics at the ~2 TeV scale. In order to challenge the precise predictions, the asymmetry will be measured with a 2.5 percent accuracy. To achieve such a precision, great care has to be taken on many aspects of the experiment. The very low momentum transfer reduces the hadronic effects to the asymmetry and must be determined to half of a percent accuracy. Beam stability is controlled and monitored constantly and background events are carefully studied.

Affiliated with

Also associated with

No associations

Rating

Measurement of the Proton's Weak Charge at the Qweak Experiment 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 Measurement of the Proton's Weak Charge at the Qweak Experiment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the Proton's Weak Charge at the Qweak Experiment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-471122