Polarization transfer in proton compton scattering at high momentum transfer

  • D. J. Hamilton*
  • , V. H. Mamyan
  • , K. A. Aniol
  • , J. R.M. Annand
  • , P. Y. Bertin
  • , L. Bimbot
  • , P. Bosted
  • , J. R. Calarco
  • , A. Camsonne
  • , G. C. Chang
  • , T. H. Chang
  • , J. P. Chen
  • , Seonho Choi
  • , E. Chudakov
  • , A. Danagoulian
  • , P. Degtyarenko
  • , C. W. De Jager
  • , A. Deur
  • , D. Dutta
  • , K. Egiyan
  • H. Gao, F. Garibaldi, O. Gayou, R. Gilman, A. Glamazdin, C. Glashausser, J. Gomez, J. O. Hansen, D. Hayes, D. Higinbotham, W. Hinton, T. Horn, C. Howell, T. Hunyady, C. E. Hyde-Wright, X. Jiang, M. K. Jones, M. Khandaker, A. Ketikyan, V. Kubarovsky, K. Kramer, G. Kumbartzki, G. Laveissière, J. Lerose, R. A. Lindgren, D. J. Margaziotis, P. Markowitz, K. McCormick, Z. E. Meziani, R. Michaels, P. Moussiegt, S. Nanda, A. M. Nathan, D. M. Nikolenko, V. Nelyubin, B. E. Norum, K. Paschke, L. Pentchev, C. F. Perdrisat, E. Piasetzky, R. Pomatsalyuk, V. A. Punjabi, I. Rachek, A. Radyushkin, B. Reitz, R. Roche, M. Roedelbronn, G. Ron, F. Sabatie, A. Saha, N. Savvinov, A. Shahinyan, Y. Shestakov, S. Airca, K. Slifer, P. Solvignon, P. Stoler, S. Tajima, V. Sulkosky, L. Todor, B. Vlahovic, L. B. Weinstein, K. Wang, B. Wojtsekhowski, H. Voskanyan, H. Xiang, X. Zheng, L. Zhu
*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Compton scattering from the proton was investigated at s=6.9GeV2 and t=-4.0GeV2 via polarization transfer from circularly polarized incident photons. The longitudinal and transverse components of the recoil proton polarization were measured. The results are in disagreement with a prediction of perturbative QCD based on a two-gluon exchange mechanism, but agree well with a prediction based on a reaction mechanism in which the photon interacts with a single quark carrying the spin of the proton.

Original languageEnglish
Article number242001
JournalPhysical Review Letters
Volume94
Issue number24
DOIs
StatePublished - 24 Jun 2005
Externally publishedYes

Fingerprint

Dive into the research topics of 'Polarization transfer in proton compton scattering at high momentum transfer'. Together they form a unique fingerprint.

Cite this