{"paper":{"title":"Measurement of the branching ratios $\\psi^\\prime \\to e^+ e^-$, $\\psi^\\prime \\to J/\\psi \\pi \\pi$ and $\\psi^\\prime \\to J/\\psi \\eta$","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Buzzo, A. Santroni, A. Tomaradze, C. Patrignani, D. Bettoni, D. Joffe, E. Luppi, E. Menichetti, E. Robutti, F. Marchetto, G. Borreani, G. Cibinetto, G. Garzoglio, G. Lasio, G. Stancari, I. Uman, J. Kasper, J. L. Rosen, J. Schultz, K. E. Gollwitzer, K. K. Seth, M. Andreotti, M. Graham, M. Hu, M. Lo Vetere, M. Macri, M. Mandelkern, M. Marinelli, M. M. Obertino, M. Negrini, M. Pallavicini, M. Stancari, N. Pastrone, P. Dalpiaz, P. Rumerio, P. Zweber, R. Calabrese, R. Cester, R. Mussa, R. Rusack, S. Bagnasco, S. H. Seo, S. Pordes, S. Werkema, T. K. Pedlar, T. Vidnovic III, W. Baldini, W. Roethel, Z. Metreveli","submitted_at":"2005-02-15T10:28:24Z","abstract_excerpt":"We have measured several branching ratios for $\\psi^\\prime$ decay using the data collected by FNAL E835 experiment during year 2000, obtaining ${\\cal B}(\\psi^\\prime \\to e^+ e^-) = 0.0068\\pm0.0001\\pm0.0004$, ${\\cal B}(\\psi^\\prime \\to J/\\psi \\pi^+ \\pi^-) = 0.292\\pm0.005\\pm0.018$, ${\\cal B}(\\psi^\\prime \\to J/\\psi \\pi^0 \\pi^0) = 0.167\\pm0.005\\pm0.014$ and ${\\cal B}(\\psi^\\prime \\to J/\\psi \\eta) = 0.028\\pm0.002\\pm0.002$. We also present a measurement of the dipion mass distribution in the decays $\\psi^\\prime \\to J/\\psi \\pi \\pi$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0502027","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0502027/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}