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First determination of generalized polarizabilities of the proton by a virtual Compton scattering experiment

Roche, J. et al. (2000) First determination of generalized polarizabilities of the proton by a virtual Compton scattering experiment. Physical Review Letters, 85 (4). 708 -711. ISSN 0031-9007 (doi:10.1103/PhysRevLett.85.708)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.85.708

Abstract

Absolute differential cross sections for the reaction ep to ep gamma have been measured at a four-momentum transfer with virtuality Q/sup 2/=0.33 GeV/sup 2/ and polarization epsilon =0.62 in the range 33.6 to 111.5 MeV/c for the momentum of the outgoing photon in the photon-proton center of mass frame. The experiment has been performed with the high-resolution spectrometers at the Mainz Microtron MAMI. From the photon angular distributions, two structure functions which are a linear combination of the generalized polarizabilities have been determined for the first time.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):UNSPECIFIED
Authors: Roche, J., Friedrich, J.M., Lhuillier, D., Bartsch, P., Baumann, D., Berthot, J., Bertin, P.Y., Breton, V., Boeglin, W.U., Bohm, R., d'Hose, N., Derber, S., Degrande, N., Ding, M., Distler, M.O., Ducret, J.E., Ewald, I., Fonvieille, H., Friedrich, J., Guichon, P.A.M., Holvoet, H., Hyde-Wright, Ch, Jennewein, P., Kahrau, M., Kerhoas, S., Krygler, K.W., Lannoy, B., Liesenfeld, A., Marchand, C., Marchand, D., Marroncle, J., Martino, J., Merkel, H., Merle, P., de Meyer, G., Mougey, J., Muller, U., Neuhausen, R., Pospischil, Th, Quemener, G., Ravel, O., Roblin, Y., Rohe, D., Rosner, G., Ryckbosch, D., Schmieden, H., Tamas, G., Tytgat, M., Vanderhaeghen, M., Van Hoorebeke, L., Van de Vyver, R., van de Wiele, J., Vernin, P., Wagner, A., Walcher, Th, and Weiss, M.
Subjects:Q Science > QC Physics
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

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