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Angular dependence of recoil proton polarization in high-energy γ d to p n

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arxiv nucl-ex/0702002 v1 pith:RTY6FBJ2 submitted 2007-02-02 nucl-ex hep-exnucl-th

Angular dependence of recoil proton polarization in high-energy γ d to p n

classification nucl-ex hep-exnucl-th
keywords polarizationangulardependenceprotonrecoilbenchmarkcalculationschromodynamics
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We measured the angular dependence of the three recoil proton polarization components in two-body photodisintegration of the deuteron at a photon energy of 2 GeV. These new data provide a benchmark for calculations based on quantum chromodynamics. Two of the five existing models have made predictions of polarization observables. Both explain the longitudinal polarization transfer satisfactorily.. Transverse polarizations are not well described, but suggest isovector dominance.

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