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The Proton Spin Structure Function G2p At Low Momentum Transfer, Tobias Badman
The Proton Spin Structure Function G2p At Low Momentum Transfer, Tobias Badman
Doctoral Dissertations
Over the past several decades Jefferson Lab National Accelerator Facility has proven to be extremely successful in its endeavor to study the polarized structure of nucleons. Measurements of these nucleon structure functions have proven to be powerful tools in testing and understanding a number of effective theories of QCD. The neutron spin structure functions, g1n and g2n, and the proton spin structure function, g1p, have been measured to very high precision over a wide kinematic range. However, the second proton structure function, g2p, remained largely unmeasured. The primary goal of Jefferson Lab Hall A experiment E08-027 was to perform an …
The G2p Experiment: A Measurement Of The Proton's Spin Structure Functions, Ryan Zielinski
The G2p Experiment: A Measurement Of The Proton's Spin Structure Functions, Ryan Zielinski
Doctoral Dissertations
The E08-027 (g2p) experiment measured the spin structure functions of the proton at Jefferson Laboratory in Newport News, Va. Longitudinally polarized electrons were scattered from a transversely and longitudinally polarized solid ammonia target in Jefferson Lab's Hall A, with the polarized NH3 acting as an effective proton target. Focusing on small scattering angle events at the electron energies available at Jefferson Lab, the experiment covered a kinematic phase space of 0.02 GeV2 < Q2 < 0.20 GeV2 in the proton's resonance region. The spin structure functions, g1p(x,Q2) and g2p(x,Q2) , are …