000830505 001__ 830505 000830505 005__ 20250129092424.0 000830505 0247_ $$2doi$$a10.1016/j.physletb.2017.03.050 000830505 0247_ $$2ISSN$$a0370-2693 000830505 0247_ $$2ISSN$$a1873-2445 000830505 0247_ $$2Handle$$a2128/14876 000830505 0247_ $$2WOS$$aWOS:000404196500054 000830505 037__ $$aFZJ-2017-04046 000830505 082__ $$a530 000830505 1001_ $$0P:(DE-HGF)0$$aAdlarson, P.$$b0 000830505 245__ $$aMeasurement of the ω → π+ π− π0 Dalitz plot distribution 000830505 260__ $$aAmsterdam$$bNorth-Holland Publ.$$c2017 000830505 3367_ $$2DRIVER$$aarticle 000830505 3367_ $$2DataCite$$aOutput Types/Journal article 000830505 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1499686082_7960 000830505 3367_ $$2BibTeX$$aARTICLE 000830505 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000830505 3367_ $$00$$2EndNote$$aJournal Article 000830505 520__ $$aUsing the production reactions pd→3Heω and pp→ppω, the Dalitz plot distribution for the ω→π+π−π0 decay is studied with the WASA detector at COSY, based on a combined data sample of (4.408±0.042)×10^4 events. The Dalitz plot density is parametrised by a product of the P-wave phase space and a polynomial expansion in the normalised polar Dalitz plot variables Z and ϕ. For the first time, a deviation from pure P-wave phase space is observed with a significance of 4.1σ . The deviation is parametrised by a linear term 1+2αZ, with α determined to be +0.147±0.036, consistent with the expectations of ρ-meson-type final-state interactions of the P-wave pion pairs. 000830505 536__ $$0G:(DE-HGF)POF3-612$$a612 - Cosmic Matter in the Laboratory (POF3-612)$$cPOF3-612$$fPOF III$$x0 000830505 588__ $$aDataset connected to CrossRef 000830505 693__ $$0EXP:(DE-Juel1)WASA-at-COSY-20170712$$5EXP:(DE-Juel1)WASA-at-COSY-20170712$$eWASA (Wide Angle Shower Apparatus) at COSY$$x0 000830505 7001_ $$0P:(DE-HGF)0$$aAugustyniak, W.$$b1 000830505 7001_ $$0P:(DE-HGF)0$$aBardan, W.$$b2 000830505 7001_ $$0P:(DE-HGF)0$$aBashkanov, M.$$b3 000830505 7001_ $$0P:(DE-HGF)0$$aBergmann, F. S.$$b4 000830505 7001_ $$0P:(DE-HGF)0$$aBerłowski, M.$$b5 000830505 7001_ $$0P:(DE-Juel1)156287$$aBhatt, H.$$b6 000830505 7001_ $$0P:(DE-HGF)0$$aBondar, A.$$b7 000830505 7001_ $$0P:(DE-Juel1)131108$$aBüscher, Markus$$b8 000830505 7001_ $$0P:(DE-Juel1)131110$$aCalén, H.$$b9 000830505 7001_ $$0P:(DE-HGF)0$$aCiepał, I.$$b10 000830505 7001_ $$0P:(DE-HGF)0$$aClement, H.$$b11 000830505 7001_ $$0P:(DE-HGF)0$$aCzerwiński, E.$$b12 000830505 7001_ $$0P:(DE-HGF)0$$aDemmich, K.$$b13 000830505 7001_ $$0P:(DE-Juel1)131141$$aEngels, Ralf W.$$b14 000830505 7001_ $$0P:(DE-Juel1)130632$$aErven, A.$$b15 000830505 7001_ $$0P:(DE-Juel1)133883$$aErven, W.$$b16 000830505 7001_ $$0P:(DE-HGF)0$$aEyrich, W.$$b17 000830505 7001_ $$0P:(DE-Juel1)131151$$aFedorets, P.$$b18 000830505 7001_ $$0P:(DE-HGF)0$$aFöhl, K.$$b19 000830505 7001_ $$0P:(DE-HGF)0$$aFransson, K.$$b20 000830505 7001_ $$0P:(DE-Juel1)131167$$aGoldenbaum, F.$$b21 000830505 7001_ $$0P:(DE-Juel1)145969$$aGoswami, A.$$b22 000830505 7001_ $$0P:(DE-Juel1)131170$$aGrigoryev, K.$$b23 000830505 7001_ $$0P:(DE-HGF)0$$aGullström, C.-O.$$b24 000830505 7001_ $$00000-0003-1886-3237$$aHeijkenskjöld, L.$$b25$$eCorresponding author 000830505 7001_ $$0P:(DE-Juel1)131187$$aHejny, Volker$$b26 000830505 7001_ $$0P:(DE-HGF)0$$aHüsken, N.$$b27 000830505 7001_ $$0P:(DE-HGF)0$$aJarczyk, L.$$b28 000830505 7001_ $$0P:(DE-HGF)0$$aJohansson, T.$$b29 000830505 7001_ $$0P:(DE-HGF)0$$aKamys, B.$$b30 000830505 7001_ $$0P:(DE-Juel1)133902$$aKemmerling, G.$$b31 000830505 7001_ $$0P:(DE-Juel1)144005$$aKhan, F. A.$$b32 000830505 7001_ $$0P:(DE-HGF)0$$aKhatri, G.$$b33 000830505 7001_ $$0P:(DE-HGF)0$$aKhoukaz, A.$$b34 000830505 7001_ $$0P:(DE-HGF)0$$aKhreptak, O.$$b35 000830505 7001_ $$0P:(DE-HGF)0$$aKirillov, D. A.$$b36 000830505 7001_ $$0P:(DE-HGF)0$$aKistryn, S.$$b37 000830505 7001_ $$0P:(DE-Juel1)133905$$aKleines, H.$$b38 000830505 7001_ $$0P:(DE-HGF)0$$aKłos, B.$$b39 000830505 7001_ $$0P:(DE-HGF)0$$aKrzemień, W.$$b40 000830505 7001_ $$0P:(DE-Juel1)131225$$aKulessa, P.$$b41 000830505 7001_ $$0P:(DE-Juel1)131227$$aKupść, A.$$b42 000830505 7001_ $$0P:(DE-HGF)0$$aKuzmin, A.$$b43 000830505 7001_ $$0P:(DE-HGF)0$$aLalwani, K.$$b44 000830505 7001_ $$0P:(DE-Juel1)144361$$aLersch, D.$$b45 000830505 7001_ $$0P:(DE-Juel1)131242$$aLorentz, B.$$b46 000830505 7001_ $$0P:(DE-HGF)0$$aMagiera, A.$$b47 000830505 7001_ $$0P:(DE-Juel1)131248$$aMaier, R.$$b48 000830505 7001_ $$0P:(DE-HGF)0$$aMarciniewski, P.$$b49 000830505 7001_ $$0P:(DE-HGF)0$$aMariański, B.$$b50 000830505 7001_ $$0P:(DE-HGF)0$$aMorsch, H.-P.$$b51 000830505 7001_ $$0P:(DE-Juel1)131262$$aMoskal, P.$$b52 000830505 7001_ $$0P:(DE-Juel1)131276$$aOhm, H.$$b53 000830505 7001_ $$0P:(DE-HGF)0$$aPerez del Rio, E.$$b54 000830505 7001_ $$0P:(DE-HGF)0$$aPiskunov, N. 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