%0 Journal Article
%A Adlarson, P.
%A Augustyniak, W.
%A Bardan, W.
%A Bashkanov, M.
%A Bergmann, F. S.
%A Berłowski, M.
%A Bhatt, H.
%A Bondar, A.
%A Büscher, Markus
%A Calén, H.
%A Ciepał, I.
%A Clement, H.
%A Czerwiński, E.
%A Demmich, K.
%A Engels, Ralf W.
%A Erven, A.
%A Erven, W.
%A Eyrich, W.
%A Fedorets, P.
%A Föhl, K.
%A Fransson, K.
%A Goldenbaum, F.
%A Goswami, A.
%A Grigoryev, K.
%A Gullström, C.-O.
%A Heijkenskjöld, L.
%A Hejny, Volker
%A Hüsken, N.
%A Jarczyk, L.
%A Johansson, T.
%A Kamys, B.
%A Kemmerling, G.
%A Khan, F. A.
%A Khatri, G.
%A Khoukaz, A.
%A Khreptak, O.
%A Kirillov, D. A.
%A Kistryn, S.
%A Kleines, H.
%A Kłos, B.
%A Krzemień, W.
%A Kulessa, P.
%A Kupść, A.
%A Kuzmin, A.
%A Lalwani, K.
%A Lersch, D.
%A Lorentz, B.
%A Magiera, A.
%A Maier, R.
%A Marciniewski, P.
%A Mariański, B.
%A Morsch, H.-P.
%A Moskal, P.
%A Ohm, H.
%A Perez del Rio, E.
%A Piskunov, N. M.
%A Prasuhn, D.
%A Pszczel, D.
%A Pysz, K.
%A Pyszniak, A.
%A Ritman, J.
%A Roy, A.
%A Rudy, Z.
%A Rundel, O.
%A Sawant, S.
%A Schadmand, S.
%A Schätti-Ozerianska, I.
%A Sefzick, T.
%A Serdyuk, V.
%A Shwartz, B.
%A Sitterberg, K.
%A Skorodko, T.
%A Skurzok, M.
%A Smyrski, J.
%A Sopov, V.
%A Stassen, R.
%A Stepaniak, J.
%A Stephan, E.
%A Sterzenbach, G.
%A Stockhorst, H.
%A Stroeher, Hans
%A Szczurek, A.
%A Trzciński, A.
%A Varma, R.
%A Wolke, M.
%A Wrońska, A.
%A Wüstner, P.
%A Yamamoto, A.
%A Zabierowski, J.
%A Zieliński, M. J.
%A Złomańczuk, J.
%A Żuprański, P.
%A Żurek, M.
%A Kubis, B.
%A Leupold, S.
%T Measurement of the ω → π+ π− π0 Dalitz plot distribution
%J Physics letters / B
%V 770
%@ 0370-2693
%C Amsterdam
%I North-Holland Publ.
%M FZJ-2017-04046
%P 418-425
%D 2017
%X Using the production reactions pd→3Heω and pp→ppω, the Dalitz plot distribution for the ω→π+π−π0 decay is studied with the WASA detector at COSY, based on a combined data sample of (4.408±0.042)×10^4 events. The Dalitz plot density is parametrised by a product of the P-wave phase space and a polynomial expansion in the normalised polar Dalitz plot variables Z and ϕ. For the first time, a deviation from pure P-wave phase space is observed with a significance of 4.1σ  . The deviation is parametrised by a linear term 1+2αZ, with α determined to be +0.147±0.036, consistent with the expectations of ρ-meson-type final-state interactions of the P-wave pion pairs.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000404196500054
%R 10.1016/j.physletb.2017.03.050
%U https://juser.fz-juelich.de/record/830505