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Measuring proton spin polarizabilities with polarized compton scattering
Polarized nuclear Compton scattering on a proton target provides a test of low energy QCD. The beam-target asymmetries of a circularly polarized Bremsstrahlung photon beam on a transversely polarized butanol target (Σ2 x) and on a longitudinally polarized butanol target (Σ 2z), and the beam asymmetry of a linearly polarized Bremsstrahlung beam on an unpolarized hydrogen target (Σ 3) are sensitive to the proton spin polarizabilities, third order terms in the energy expansion of the Compton scattering amplitude. This experiment consisted of the Σ2x measurement, both just below and above two-pion threshold.^
Nuclear physics and radiation
Martel, Philippe Paul, "Measuring proton spin polarizabilities with polarized compton scattering" (2013). Doctoral Dissertations Available from Proquest. AAI3556270.