Experimental check of the Gerasimov-Drell-Hearn sum rule for ¹H

Dutz, H. et al. (2004) Experimental check of the Gerasimov-Drell-Hearn sum rule for ¹H. Physical Review Letters, 93(3), 032003. (doi: 10.1103/PhysRevLett.93.032003)

Abstract

For the first time we checked the fundamental Gerasimov-Drell-Hearn (GDH) sum rule for the proton experimentally in the photon energy range from 0.2–2.9 GeV with the tagged photon facilities at MAMI (Mainz) and ELSA (Bonn). New data of the doubly polarized total cross section difference are presented in the energy range from 1.6 to 2.9 GeV. The contribution to the GDH integral from 0.2–2.9 GeV yields [254±5(stat)±12(syst)]  μb with negative contributions in the Regge regime at photon energies above 2.1 GeV. This trend supports the validity of the GDH sum rule.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Annand, Dr John
• Authors: Dutz, H., Helbing, K., Krimmer, J., Speckner, T., Zeitler, G., Ahrens, J., Altieri, S., Annand, J.R.M., Anton, G., Arends, H.J., Beck, R., Bock, A., Bradtke, C., Braghieri, A., von Drachenfels, W., Frommberger, F., Godo, M., Goertz, S., Grabmayr, P., Hasegawa, S., Hansen, K., Harmsen, J., Heid, E., Hillert, W., Holvoet, H., Horikawa, N., Iwata, T., Van Hoorebeke, L., dHose, N., Jennewein, P., Kiel, B., Klein, F., Kondratiev, R., Lang, M., Lannoy, B., Leukel, R., Lisin, V., Menze, D., Meyer, W., Michel, T., Naumann, J., Panzeri, A., Pedroni, P., Pinelli, T., Preobrajenski, I., Radtke, E., Reicherz, G., Rohlof, C., Rostomyan, T., Sauer, M., Schoch, B., Schumacher, M., Tamas, G., Thomas, A., van de Vyver, R., Weihofen, W., and Zapadtka, F.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007
• ISSN (Online): 1079-7114
• Published Online: 16 July 2004