Helicity amplitudes A_1/2 and A_3/2 for the D₁₃(1520) resonance obtained from the (gamma)over-right-arrow(p)over- right-arrow → p pi⁰ reaction

Ahrens, J. et al. (2002) Helicity amplitudes A_1/2 and A_3/2 for the D₁₃(1520) resonance obtained from the (gamma)over-right-arrow(p)over- right-arrow → p pi⁰ reaction. Physical Review Letters, 88(23), art 232002. (doi:10.1103/PhysRevLett.88.232002)

Abstract

The helicity dependence of the (γ) over right arrow(p) over right arrow →ppi(0) reaction has been measured for the first time in the photon-energy range from 550 to 790 MeV. The experiment, performed at the Mainz microtron MAMI, used a 4pi - detector system, a circularly polarized, tagged photon beam, and a longitudinally polarized frozen-spin target. These data are predominantly sensitive to the D-13(1520) resonance and are used to determine its helicity amplitudes.

• Item Type: Articles
• Additional Information: Thomson UT: 175860500017
• 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., Drechsel, D., 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., Kamalov, S., 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., Ryckbosch, D., Sauer, M., Schoch, B., Schumacher, M., Seitz, B., Speckner, T., Takabayashi, N., Tamas, G., Thomas, A., Tiator, L., Van 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: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007
• ISSN (Online): 1079-7114