Helicity dependence of the gamma p to n pi /sup +/ pi /sup 0/ reaction in the second resonance region

Ahrens, J. et al. (2003) Helicity dependence of the gamma p to n pi /sup +/ pi /sup 0/ reaction in the second resonance region. Physics Letters B, 551(1-2), 49 -55. (doi:10.1016/S0370-2693(02)03008-3)

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Publisher's URL: http://dx.doi.org/10.1016/S0370-2693(02)03008-3

Abstract

The helicity dependence of the total cross section for the gamma p to n pi /sup +/ pi /sup 0/ reaction has been measured for the first time at incident photon energies from 400 to 800 MeV. The measurement was performed with the large acceptance detector DAPHNE at the tagged photon beam facility of the MAMI accelerator in Mainz. This channel is found to be excited predominantly when the photon and proton have a parallel spin orientation, due to the intermediate production of the D/sub 13/ resonance.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Seitz, Dr Bjoern and Annand, Dr John and Rosner, Professor Guenther
Authors: Ahrens, J., Altieri, S., Annand, J.R.M., Anton, G., Arends, H.J., Aulenbacher, K., Beck, R., Bradtke, C., Braghieri, A., Degrande, N., d'Hose, N., Dutz, H., Goertz, S., Grabmayr, P., Hansen, K., Harmsen, J., von Harrach, D., Hasegawa, S., Hasegawa, T., Heid, E., Helbing, K., Holvoet, H., Van Hoorebeke, L., Horikawa, N., Iwata, T., Jahn, O., Jennewein, P., Kageya, T., Kiel, B., Klein, F., Kondratiev, R., Kossert, K., Krimmer, J., Lang, M., Lannoy, B., Leukel, R., Lisin, V., Matsuda, T., McGeorge, J.C., Meier, A., Menze, D., Meyer, W., Michel, T., Naumann, J., Panzeri, A., Pedroni, P., Pinelli, T., Preobrajenski, I., Radtke, E., Reichert, E., Reicherz, G., Rohlof, C., Rosner, G., Rostomyan, T., Rovelli, C., Ryckbosch, D., Sauer, M., Schoch, B., Schumacher, M., Seitz, B., Speckner, T., Takabayashi, N., Tamas, G., Thomas, A., Van de Vyver, R., Wakai, A., Weihofen, W., Wissmann, F., Zapadtka, F., and Zeitler, G.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier BV
ISSN:0370-2693
ISSN (Online):1873-2445

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