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Recoil-Proton Polarization in High-Energy Deuteron Photodisintegration with Circularly Polarized Photons

Journal Article · · Phys. Rev. Lett.
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.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA
Sponsoring Organization:
USDOE - Office of Energy Research (ER)
DOE Contract Number:
AC05-84ER40150
OSTI ID:
903398
Report Number(s):
JLAB-PHY-07-629; DOE/ER/40150-4281
Journal Information:
Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Vol. 98; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English