Photoproduction of π0 η on protons and the Δ (1700)D33 -resonance

Kashevarov, V.L. et al. (2009) Photoproduction of π0 η on protons and the Δ (1700)D33 -resonance. European Physical Journal A, 42(2), pp. 141-149. (doi:10.1140/epja/i2009-10868-4)

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Abstract

Total and differential cross-sections for the reaction γp → π0ηp have been measured with the Crystal Ball/TAPS detector using the tagged photon facility at the MAMI C accelerator in Mainz. In the energy range Eγ = 0.95–1.4 GeV the reaction is dominated by the excitation and sequential decay of the Δ(1700)D33-resonance. Angular distributions measured with high statistics allow us to determine the ratio of hadronic decay widths ΓηΔπS11 and the ratio of the helicity amplitudes A3/2/A1/2 for this resonance.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Livingston, Dr Kenneth and MacGregor, Professor I and Annand, Dr John and Glazier, Dr Derek and Rosner, Professor Guenther
Authors: Kashevarov, V.L., Fix, A., Aguar-Bartolome, P., Akasoy, L.K., Annand, J.R.M., Arends, H.J., Bantawa, K., Beck, R., Bekrenev, V., Berghauser, H., Boillat, B., Braghieri, A., Branford, D., Briscoe, W.J., Brudvik, J., Cherepnya, S., Downie, E.J., Drexler, P., Fil'kov, L.V., Glazier, D.I., Gregor, R., Heid, E., Hornidge, D., Jahn, O., Jude, T.C., Knezevic, A., Kondratiev, R., Korolija, M., Kotulla, M., Koulbardis, A., Kruglov, S., Krusche, B., Lisin, V., Livingston, K., MacGregor, I.J.D., Maghrbi, Y., Manley, D.M., Martinez-Fabregate, M., McGeorge, J.C., McNicoll, E.F., Mekterovic, D., Metag, V., Micanovic, S., Nefkens, B.M.K., Nikolaev, A., Novotny, R., Ostrick, M., Owens, R.O., Pedroni, P., Pheron, F., Polonski, A., Robinson, J., Prakhov, S.N., Rosner, G., Rostomyan, T., Schumann, S., Sober, D., Starostin, A., Suarez, I.M., Supek, I., Tarbert, C.M., Thiel, M., Thomas, A., Unverzagt, M., Watts, D.P., Zamboni, I., and Zehr, F.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:European Physical Journal A
Publisher:Springer
ISSN:1434-6001
ISSN (Online):1434-601X
Published Online:02 October 2009

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