Phys. Rev. Lett. 98, 182302 (2007) [5 pages]Recoil-Proton Polarization in High-Energy Deuteron Photodisintegration with Circularly Polarized PhotonsReceived 5 February 2007; published 1 May 2007 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. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.182302
DOI:
10.1103/PhysRevLett.98.182302
PACS:
25.20.−x, 24.70.+s, 24.85.+p, 25.10.+s
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