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Showing 1 to 2 of 2 for “"beam normal single spin asymmetry"”.
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Precision measurement of the weak charge of the proton and parity violation in the N → ∆ transition
… the proton. Qweak measured the parity-violating asymmetry in elastic electron-proton scattering at an extreme forward angle (Q² = 0.0249 (GeV/c)² ). From the data gathered via the 1.16 GeV 180 μA longitudinally polarized electron beam scattering off the unpolarized photons in the liquid hydrogen …
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Parity-Violating Elastic Electron Nucleon Scattering: Measurement of the Strange Quark Content of the Nucleon and Towards a Measurement of the Weak Charge of the Proton
… of the high quality, highly polarized electron beam available at Thomas Jefferson National Accelerator Facility. Q<sub>weak</sub> will measure the weak mixing angle, sin²θ<sub>W</sub>, via a measurement of the weak charge of the proton, at a four-momentum transfer, Q² ~ 0.026 GeV²/c². The …