Determination of the Dalitz plot parameter α for the decay η → 3 π0 with the Crystal Ball at MAMI-B

Unverzagt, M. et al. (2009) Determination of the Dalitz plot parameter α for the decay η → 3 π0 with the Crystal Ball at MAMI-B. European Physical Journal A, 39(2), pp. 169-177. (doi: 10.1140/epja/i2008-10710-7)

Abstract

A precise measurement of the Dalitz plot parameter, α , for the η → 3 π0 decay is presented. The experiment was performed with the Crystal Ball and TAPS large-acceptance photon detectors at the tagged photon beam facility of the MAMI-B electron accelerator in Mainz. High statistics of 1.8 · 106 η → 3 π0 events were obtained, giving the result α = - 0.032±0.002_stat±0.002_syst.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Glazier, Dr Derek and McGeorge, Dr John and Downie, Dr Evangeline and MacGregor, Professor Douglas and Livingston, Dr Kenneth and Annand, Dr John and Rosner, Professor Guenther
• Authors: Unverzagt, M., Aguar-Bartolome, P., Ahrens, J., Annand, J.R.M., Arends, H.J., Beck, R., Bekrenev, V., Boillat, B., Braghieri, A., Branford, D., Briscoe, W.J., Brudvik, J.W., Cherepnya, S., Codling, R., Downie, E.J., Fil'kov, L.V., Glazier, D.I., Gregor, R., Heid, E., Hornidge, D., Jahn, O., Kashevarov, V.L., Kondratiev, R., Korolija, M., Kotulla, M., Krambrich, D., Krusche, B., Lang, M., Lisin, V., Livingston, K., Lugert, S., MacGregor, I.J.D., Manley, D.M., Martinez-Fabregate, M., McGeorge, J.C., Mekterovic, D., Metag, V., Nefkens, B.M.K., Nikolaev, A., Novotny, R., Owens, R.O., Pedroni, P., Polonski, A., Prakhov, S.N., Price, J.W., Rosner, G., Rost, M., Rostomyan, T., Schumann, S., Sober, D., Starostin, A., Supek, I., Tarbert, C.M., Thomas, A., Walcher, T., Watts, D.P., 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