Systematic Studies with the Qweak Tracking System

ORAL

Abstract

Qweak is an upcoming experiment at the Thomas Jefferson National Accelerator Lab that will use parity-violating elastic electron-proton scattering to measure the weak charge of the proton (Q$^{P}_{weak}$). This experiment will be a sensitive test for physics beyond the standard model, as Q$^{P}_{weak}$ is well predicted in the Standard Model. Longitudinally polarized electrons will scatter off a liquid hydrogen target and pass through a toroidal-field magnetic spectrometer. In order to perform a 4\% measurement of Q$^{P}_{weak}$, we will need to measure the momentum transfer (Q$^{2}$) to 0.5\%. The Q$^{2}$ will be measured using a tracking system consisting of two gas electron multipliers (GEM), four horizontal drift chambers (HDC), and four vertical drift chambers (VDC). In this talk I will outline the design and status of each tracking device and discuss the details of the Q$^{2}$ measurement, as well as several systematic studies that will be performed with this tracking system.

Authors

  • John Leckey

    William and Mary