Determination of the Dalitz plot parameter α for the decay η → 3 π0 with the Crystal Ball at MAMI-B
- 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.
- Zehr, F.
DOIAbstract
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<sub>stat</sub>±0.002<sub>syst</sub>
Add to ORKG