{"paper":{"title":"Measurement of the $pn \\to pp\\pi^0\\pi^-$ Reaction in Search for the Recently Observed Resonance Structure in $d\\pi^0\\pi^0$ and $d\\pi^+\\pi^-$ systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A.Goswami, A.Jany, A.Khoukaz, A.Kup\\'s\\'c, A.Magiera, A.Pricking, A.Pyszniak, A.Roy, A.Schmidt, A.Szczurek, A.Trzci\\'nski, A.Wro\\'nska, A.Yamamoto, B.H\\\"oistad, B.Kamys, B.K{\\l}os, B.K.Nandi, B.Lorentz, B.Maria\\'nski, B.R.Jany, C.F.Redmer, C.--O.Gullstr\\\"om, C.Zheng, D.A.Kirillov, D.Coderre, D.Lersch, D.Prasuhn, D.Pszczel, E.Czerwi\\'nski, E.Doroshkevich, E.Perez del Rio, E.Stephan, F.A.Khan, F.Goldenbaum, F.Hauenstein, F.Hinterberger, F.S.Bergmann, G.J.Wagner, G.Kemmerling, G.Sterzenbach, H.Bhatt, H.Cal\\'en, H. Clement, H.Kleines, H.Ohm, H.--P.Morsch, H.Stockhorst, H.Str\\\"oher, I.Ciepa{\\l}, I.Ozerianska, J.Klaja, J.Ritman, J.Smyrski, J.Stepaniak, J.Zabierowski, J.Z{\\l}oma\\'nczuk, K.Demmich, K.F\\\"ohl, K.Fransson, K.Grigoryev, K.Lalwani, K.Pysz, L.Heijkenskj\\\"old, L.Jarczyk, L.Li, M.Bashkanov, M.Ber{\\l}owski, M.B\\\"uscher, M.Hodana, M.J.Zieli\\'nski, M.Krapp, M.Mikirtychiants, M.Siemaszko, M.Skurzok, M.Wolke, M.\\.Zurek, N.M.Piskunov, N.Shah, P.Adlarson, P.Fedorets, P.Goslawski, P.Kulessa, P.Marciniewski, P.Moskal, P.Pluci\\'nski, P.Podkopa{\\l}, P.Wurm, P.W\\\"ustner, P.\\.Zupra\\'nski, R.Engels, R.Maier, R.Siudak, R.Stassen, R.Varma, S.Kistryn, S.Sawant, S.Schadmand, T.Johansson, T.Sefzick, T.Skorodko, T.Tolba, V.Hejny, V.Serdyuk, V.Sopov, W.Augustyniak, W.Bardan, W.Erven, W.Eyrich, W.Krzemie\\'n, W.W\\k{e}glorz, W.Zipper, X.Yuan, Z.Rudy","submitted_at":"2013-06-21T13:19:55Z","abstract_excerpt":"Exclusive measurements of the quasi-free $pn \\to pp\\pi^0\\pi^-$ reaction have been performed by means of $pd$ collisions at $T_p$ = 1.2 GeV using the WASA detector setup at COSY. Total and differential cross sections have been obtained covering the energy region $\\sqrt s$ = (2.35 - 2.46) GeV, which includes the region of the ABC effect and its associated resonance structure. No ABC effect, {\\it i.e.} low-mass enhancement is found in the $\\pi^0\\pi^-$-invariant mass spectrum -- in agreement with the constraint from Bose statistics that the isovector pion pair can not be in relative s-wave. At the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5130","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}