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)

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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
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 (Online):1079-7114
Published Online:16 July 2004

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