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

Journal Article · Fri May 04 04:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.182302· OSTI ID:20951334

Jiang, X; Benmokhtar, F; Glashauser, C; McCormick, K; Ransome, R D ^[1]; Arrington, J; Holt, R J; Reimer, P E; Schulte, E C; Wijesooriya, K ^[2]; Camsonne, A ^[3]; Chen, J P; Chudakov, E; Gaskell, D; Hansen, O; Higinbotham, D W; Jager, C W. de; Jones, M K; Lerose, J; Michaels, R ^[4]

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1. Rutgers, State University of New Jersey, Piscataway, New Jersey 08854 (United States)
2. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
3. Universite Blaise Pascal/IN2P3, F-63177 Aubiere (France)
4. Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)

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.

• OSTI ID: 20951334
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 98; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DEUTERONS
GEV RANGE 01-10
ISOVECTORS
PHOTONS
PHOTONUCLEAR REACTIONS
POLARIZATION
PROTONS
QUANTUM CHROMODYNAMICS
TWO-BODY PROBLEM