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

Abstract

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.

Authors:
; ; ; ;  [1]; ; ; ; ;  [2];  [3]; ; ; ; ; ; ; ; ;  [4]
  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) (and others)
Publication Date:
OSTI Identifier:
20951334
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 18; Other Information: DOI: 10.1103/PhysRevLett.98.182302; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DEUTERONS; GEV RANGE 01-10; ISOVECTORS; PHOTONS; PHOTONUCLEAR REACTIONS; POLARIZATION; PROTONS; QUANTUM CHROMODYNAMICS; TWO-BODY PROBLEM

Citation Formats

Jiang, X., Benmokhtar, F., Glashauser, C., McCormick, K., Ransome, R. D., Arrington, J., Holt, R. J., Reimer, P. E., Schulte, E. C., Wijesooriya, K., Camsonne, A., Chen, J. P., Chudakov, E., Gaskell, D., Hansen, O., Higinbotham, D. W., Jager, C. W. de, Jones, M. K., Lerose, J., and Michaels, R. Recoil-Proton Polarization in High-Energy Deuteron Photodisintegration with Circularly Polarized Photons. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.182302.
Jiang, X., Benmokhtar, F., Glashauser, C., McCormick, K., Ransome, R. D., Arrington, J., Holt, R. J., Reimer, P. E., Schulte, E. C., Wijesooriya, K., Camsonne, A., Chen, J. P., Chudakov, E., Gaskell, D., Hansen, O., Higinbotham, D. W., Jager, C. W. de, Jones, M. K., Lerose, J., & Michaels, R. Recoil-Proton Polarization in High-Energy Deuteron Photodisintegration with Circularly Polarized Photons. United States. doi:10.1103/PHYSREVLETT.98.182302.
Jiang, X., Benmokhtar, F., Glashauser, C., McCormick, K., Ransome, R. D., Arrington, J., Holt, R. J., Reimer, P. E., Schulte, E. C., Wijesooriya, K., Camsonne, A., Chen, J. P., Chudakov, E., Gaskell, D., Hansen, O., Higinbotham, D. W., Jager, C. W. de, Jones, M. K., Lerose, J., and Michaels, R. Fri . "Recoil-Proton Polarization in High-Energy Deuteron Photodisintegration with Circularly Polarized Photons". United States. doi:10.1103/PHYSREVLETT.98.182302.
@article{osti_20951334,
title = {Recoil-Proton Polarization in High-Energy Deuteron Photodisintegration with Circularly Polarized Photons},
author = {Jiang, X. and Benmokhtar, F. and Glashauser, C. and McCormick, K. and Ransome, R. D. and Arrington, J. and Holt, R. J. and Reimer, P. E. and Schulte, E. C. and Wijesooriya, K. and Camsonne, A. and Chen, J. P. and Chudakov, E. and Gaskell, D. and Hansen, O. and Higinbotham, D. W. and Jager, C. W. de and Jones, M. K. and Lerose, J. and Michaels, R.},
abstractNote = {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.},
doi = {10.1103/PHYSREVLETT.98.182302},
journal = {Physical Review Letters},
number = 18,
volume = 98,
place = {United States},
year = {Fri May 04 00:00:00 EDT 2007},
month = {Fri May 04 00:00:00 EDT 2007}
}