Strange Quark Form-Factors at High Momentum Transfer

The proposed sFF experiment at Jefferson Laboratory will determine the weak neutral current form-factor of the proton at high four-momentum transfer with a measurement of parity-violation in elastic electron-proton scattering. The result will find or place an upper limit on the strangeness form factor at large momentum transfer. This is key to the flavor decomposition of u-quark and d-quark contributions to the nucleon form factors, which requires more stringent limits on possible strangeness contributions than are provided by existing data or lattice QCD calculations. A novel experimental approach, based in part on reconfigured components from the SuperBigBite detector, will achieve the precision necessary for the interpretation of high momentum-transfer proton and neutron form-factors in terms of models of the underlying nuclear structure. The motivation, design, and future prospects for this measurement will be presented.