%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, M.
%A Calén, H.
%A Ciepał, I.
%A Clement, H.
%A Coderre, D.
%A Czerwiński, E.
%A Demmich, K.
%A Doroshkevich, E.
%A Engels, R.
%A Erven, A.
%A Eyrich, W.
%A Fedorets, P.
%A Föhl, K.
%A Fransson, K.
%A Goldenbaum, F.
%A Goslawski, P.
%A Goswami, A.
%A Grigoryev, K.
%A Gullström, C.-O.
%A Hauenstein, F.
%A Heijkenskjöld, L.
%A Hejny, V.
%A Höistad, B.
%A Hüsken, N.
%A Jarczyk, L.
%A Johansson, T.
%A Kamys, B.
%A Kemmerling, G.
%A Khan, F. A.
%A Khoukaz, A.
%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 Mikirtychiants, M.
%A Morsch, H.-P.
%A Moskal, P.
%A Ohm, H.
%A Ozerianska, I.
%A Perez del Rio, E.
%A Piskunov, N. M.
%A Podkopał, P.
%A Prasuhn, D.
%A Pricking, A.
%A Pszczel, D.
%A Pysz, K.
%A Pyszniak, A.
%A Ritman, J.
%A Roy, A.
%A Rudy, Z.
%A Sawant, S.
%A Schadmand, S.
%A Sefzick, T.
%A Serdyuk, V.
%A Shwartz, B.
%A Siudak, R.
%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 Ströher, H.
%A Szczurek, A.
%A Täschner, A.
%A Trzciński, A.
%A Varma, R.
%A Wagner, G. J.
%A Wolke, M.
%A Wrońska, A.
%A Wüstner, P.
%A Wurm, P.
%A Yamamoto, A.
%A Yurev, L.
%A Zabierowski, J.
%A Zieliński, M. J.
%A Zink, A.
%A Złomańczuk, J.
%A Żuprański, P.
%A Żurek, M.
%A WASA-at-COSY Collaboration
%T ABC effect and resonance structure in the double-pionic fusion to ${}^{3}\mathrm{He}$
%J Physical review / C
%V 91
%N 1
%@ 0556-2813
%C Woodbury, NY
%I Inst.
%M FZJ-2015-00482
%P 015201
%D 2015
%X Exclusive and kinematically complete measurements of the double pionic fusion to 3He have been performed in the energy region of the so-called ABC effect, which denotes a pronounced low-mass enhancement in the ππ-invariant mass spectrum. The experiments were carried out with the WASA detector setup at COSY (the cooler synchrotron at Forschungszentrum Jülich). Similar to the observations in the basic pn→dπ0π0 reaction and in the dd→4Heπ0π0 reaction, the data reveal a correlation between the ABC effect and a resonance-like energy dependence in the total cross section. Differential cross sections are well described by the hypothesis of d∗ resonance formation during the reaction process in addition to the conventional t-channel ΔΔ mechanism. The deduced d∗ resonance width can be understood from collision broadening due to Fermi motion of the nucleons in initial and final nuclei.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000348728100005
%R 10.1103/PhysRevC.91.015201
%U https://juser.fz-juelich.de/record/186406