Document Type
Other
Department/Program
Physics
Journal Title
XIITH QUARK CONFINEMENT AND THE HADRON SPECTRUM
Pub Date
2017
Volume
137
Abstract
The Q(weak) experiment, which took data at Jefferson Lab in the period 2010 - 2012, will precisely determine the weak charge of the proton by measuring the parity-violating asymmetry in elastic e-p scattering at 1.1 GeV using a longitudinally polarized electron beam and a liquid hydrogen target at a low momentum transfer of Q(2) = 0.025 ( GeV/c)(2). The weak charge of the proton is predicted by the Standard Model and any significant deviation would indicate physics beyond the Standard Model. The technical challenges and experimental apparatus for measuring the weak charge of the proton will be discussed, as well as the method of extracting the weak charge of the proton. The results from a small subset of the data, that has been published, will also be presented. Furthermore an update will be given of the current status of the data analysis.
Recommended Citation
Dowd, J. F., Q(weak): First Direct Measurement of the Proton's Weak Charge (2017). XIITH QUARK CONFINEMENT AND THE HADRON SPECTRUM, 137.
https://doi.org/10.1051/epjconf/201713708005
DOI
https://doi.org/10.1051/epjconf/201713708005
