{"paper":{"title":"Precision measurement of the $\\eta\\to\\pi^+\\pi^-\\pi^0$ Dalitz plot distribution with the KLOE detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A. Budano, A. De Santis, A. Di Cicco, A. Di Domenico, A. d'Uffizi, A. Fantini, A. Gajos, A. Kupsc, A. Passeri, A. Ranieri, B. Cao, C. Bloise, D. Babusci, D. Domenici, D. Kami\\'nska, D. Moricciani, E. Czerwi\\'nski, E. Dan\\'e, E. De Lucia, E. Graziani, E. Perez del Rio, F. Bossi, F. Ceradini, F. Curciarello, F. Happacher, F. Sirghi, G. Bencivenni, G. D'Agostini, G. Felici, G. Giardina, G. Mandaglio, G. Morello, G. Venanzoni, I. Sarra, KLOE-2 Collaboration: A. Anastasi, L. Caldeira Balkest\\r{a}hl, L. Heijkenskj\\\"old, L. Tortora, M. Berlowski, M. Martini, M. Mascolo, M. Papenbrock, M. Schioppa, M. Silarski, M. Wolke, P. Branchini, P. Ciambrone, P. De Simone, P. Gauzzi, P. Moskal, P. Santangelo, R. Di Salvo, R. Messi, S. Fiore, S. Giovannella, S. Loffredo, S. Miscetti, T. Johansson, V. De Leo, V. Patera, W. Ikegami Andersson, W. Krzemien, W. Wi\\'slicki","submitted_at":"2016-01-26T11:34:07Z","abstract_excerpt":"Using $1.6$ fb$^{-1}$ of $e^+ e^-\\to\\phi\\to\\eta\\gamma$ data collected with the KLOE detector at DA$\\Phi$NE, the Dalitz plot distribution for the $\\eta \\to \\pi^+ \\pi^- \\pi^0$ decay is studied with the world's largest sample of $\\sim 4.7 \\cdot 10^6$ events. The Dalitz plot density is parametrized as a polynomial expansion up to cubic terms in the normalized dimensionless variables $X$ and $Y$. The experiment is sensitive to all charge conjugation conserving terms of the expansion, including a $gX^2Y$ term. The statistical uncertainty of all parameters is improved by a factor two with respect to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06985","kind":"arxiv","version":1},"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"}