Recoil-proton polarization in high-energy deuteron photodisintegration with circularly polarized photons

  • X. Jiang
  • , J. Arrington
  • , F. Benmokhtar
  • , A. Camsonne
  • , J. P. Chen
  • , S. Choi
  • , E. Chudakov
  • , F. Cusanno
  • , A. Deur
  • , D. Dutta
  • , F. Garibaldi
  • , D. Gaskell
  • , O. Gayou
  • , R. Gilman
  • , C. Glashauser
  • , D. Hamilton
  • , O. Hansen
  • , D. W. Higinbotham
  • , R. J. Holt
  • , C. W. De Jager
  • M. K. Jones, L. J. Kaufman, E. R. Kinney, K. Kramer, L. Lagamba, R. De Leo, J. Lerose, D. Lhuillier, R. Lindgren, N. Liyanage, K. McCormick, Z. E. Meziani, R. Michaels, B. Moffit, P. Monaghan, S. Nanda, K. D. Paschke, C. F. Perdrisat, V. Punjabi, I. A. Qattan, R. D. Ransome, P. E. Reimer, B. Reitz, A. Saha, E. C. Schulte, R. Sheyor, K. Slifer, P. Solvignon, V. Sulkosky, G. M. Urciuoli, E. Voutier, K. Wang, K. Wijesooriya, B. Wojtsekhowski, L. Zhu

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

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.

Original languageAmerican English
Article number182302
JournalPhysical review letters
Volume98
Issue number18
DOIs
StatePublished - May 1 2007

ASJC Scopus subject areas

  • General Physics and Astronomy

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