Measurement of helicity-dependent photoabsorption cross sections on the neutron from 815 to 1825 MeV

Dutz, H. et al. (2005) Measurement of helicity-dependent photoabsorption cross sections on the neutron from 815 to 1825 MeV. Physical Review Letters, 94(16), p. 162001. (doi: 10.1103/PhysRevLett.94.162001)

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Helicity-dependent total photoabsorption cross sections on the deuteron have been measured for the first time at ELSA (Bonn) in the photon energy range from 815 to 1825 MeV. Circularly polarized tagged photons impinging on a longitudinally polarized LiD target have been used together with a highly efficient 4π detector system. The data around 1 GeV are not compatible with predictions from existing multipole analyses. From the measured energy range an experimental contribution to the GDH integral on the neutron of [33.9±5.5(stat)±4.5(syst)] μb is extracted.

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:28 April 2005

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