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Published December 1, 2021 | Submitted + Published
Journal Article Open

Study of the reactions e⁺e⁻ → π⁺π⁻π⁰π⁰π⁰π⁰ and π⁺π⁻π⁰π⁰π⁰η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Lees, J. P.
Poireau, V.
Tisserand, V.
Grauges, E.
Palano, A.
Eigen, G.
Brown, D. N.
Kolomensky, Yu. G.
Fritsch, M.
Koch, H.
Schroeder, T.
Cheaib, R.
Hearty, C.
Mattison, T. S.
McKenna, J. A.
So, R. Y.
Blinov, V. E.
Buzykaev, A. R.
Druzhinin, V. P.
Golubev, V. B.
Kozyrev, E. A.
Kravchenko, E. A.
Onuchin, A. P.
Serednyakov, S. I.
Skovpen, Yu. I.
Solodov, E. P. ORCID icon
Todyshev, K. Yu.
Lankford, A. J.
Dey, B.
Gary, J. W.
Long, O.
Eisner, A. M.
Lockman, W. S.
Panduro Vazquez, W.
Chao, D. S.
Cheng, C. H. ORCID icon
Echenard, B. ORCID icon
Flood, K. T.
Hitlin, D. G. ORCID icon
Kim, J.
Li, Y.
Lin, D. X.
Middleton, S.
Miyashita, T. S.
Ongmongkolkul, P.
Oyang, J.
Porter, F. C. ORCID icon
Röhrken, M.
Huard, Z.
Meadows, B. T.
Pushpawela, B. G.
Sokoloff, M. D.
Sun, L.
Smith, J. G.
Wagner, S. R.
Bernard, D.
Verderi, M.
Bettoni, D.
Bozzi, C.
Calabrese, R.
Cibinetto, G.
Fioravanti, E.
Garzia, I.
Luppi, E.
Santoro, V.
Calcaterra, A.
de Sangro, R.
Finocchiaro, G.
Martellotti, S.
Patteri, P.
Peruzzi, I. M.
Piccolo, M.
Rotondo, M.
Zallo, A.
Passaggio, S.
Patrignani, C.
Shuve, B. J.
Lacker, H. M.
Bhuyan, B.
Mallik, U.
Chen, C.
Cochran, J.
Prell, S.
Gritsan, A. V.
Arnaud, N.
Davier, M.
Le Diberder, F.
Lutz, A. M.
Wormser, G.
Lange, D. J.
Wright, D. M.
Coleman, J. P.
Gabathuler, E.
Hutchcroft, D. E.
Payne, D. J.
Touramanis, C.
Bevan, A. J.
Di Lodovico, F.
Sacco, R.
Cowan, G.
Banerjee, Sw.
Brown, D. N.
Davis, C. L.
Denig, A. G.
Gradl, W.
Griessinger, K.
Hafner, A.
Schubert, K. R.
Barlow, R. J.
Lafferty, G. D.
Cenci, R.
Jawahery, A.
Roberts, D. A.
Cowan, R.
Robertson, S. H.
Seddon, R. M.
Neri, N.
Palombo, F.
Cremaldi, L.
Godang, R.
Summers, D. J.
Taras, P.
De Nardo, G.
Sciacca, C.
Raven, G.
Jessop, C. P.
LoSecco, J. M.
Honscheid, K.
Kass, R.
Gaz, A.
Margoni, M.
Posocco, M.
Simi, G.
Simonetto, F.
Stroili, R.
Akar, S.
Ben-Haim, E.
Bomben, M.
Bonneaud, G. R.
Calderini, G.
Chauveau, J.
Marchiori, G.
Ocariz, J.
Biasini, M.
Manoni, E.
Rossi, A.
Batignani, G.
Bettarini, S.
Carpinelli, M.
Casarosa, G.
Chrzaszcz, M.
Forti, F.
Giorgi, M. A.
Lusiani, A.
Oberhof, B.
Paoloni, E.
Rama, M.
Rizzo, G.
Walsh, J. J.
Zani, L.
Smith, A. J. S.
Anulli, F.
Faccini, R.
Ferrarotto, F.
Ferroni, F.
Pilloni, A.
Piredda, G.
Bünger, C.
Dittrich, S.
Grünberg, O.
Heß, M.
Leddig, T.
Voß, C.
Waldi, R.
Adye, T.
Wilson, F. F.
Emery, S.
Vasseur, G.
Aston, D.
Cartaro, C.
Convery, M. R.
Dorfan, J.
Dunwoodie, W.
Ebert, M.
Field, R. C.
Fulsom, B. G.
Graham, M. T.
Hast, C.
Innes, W. R.
Kim, P.
Leith, D. W. G. S.
Luitz, S.
MacFarlane, D. B.
Muller, D. R.
Neal, H.
Ratcliff, B. N.
Roodman, A.
Sullivan, M. K.
Va'vra, J.
Wisniewski, W. J.
Purohit, M. V.
Wilson, J. R.
Randle-Conde, A.
Sekula, S. J.
Ahmed, H.
Tasneem, N.
Bellis, M.
Burchat, P. R.
Puccio, E. M. T.
Alam, M. S.
Ernst, J. A.
Gorodeisky, R.
Guttman, N.
Peimer, D. R.
Soffer, A.
Spanier, S. M.
Ritchie, J. L.
Schwitters, R. F.
Izen, J. M.
Lou, X. C.
Bianchi, F.
De Mori, F.
Filippi, A.
Gamba, D.
Lanceri, L.
Vitale, L.
Martinez-Vidal, F.
Oyanguren, A.
Albert, J.
Beaulieu, A.
Bernlochner, F. U.
King, G. J.
Kowalewski, R.
Lueck, T.
Miller, C.
Nugent, I. M.
Roney, J. M.
Sobie, R. J.
Gershon, T. J.
Harrison, P. F.
Latham, T. E.
Prepost, R.
Wu, S. L.

Abstract

We study the processes e⁺e⁻ → π⁺π⁻π⁰π⁰π⁰π⁰γ and π⁺π⁻π⁰π⁰π⁰ηγ in which an energetic photon is radiated from the initial state. The data were collected with the BABAR detector at the SLAC National Accelerator Laboratory. About 7300 and 870 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469  fb⁻¹. The invariant mass of the hadronic final state defines the effective e⁺e⁻ center-of-mass energy. The center-of-mass energies range from threshold to 4.5 GeV. From the mass spectra, the first ever measurements of the e⁺e⁻ → π⁺π⁻π⁰π⁰π⁰π⁰ and the e⁺e⁻ → π⁺π⁻π⁰π⁰π⁰η cross sections are performed. The contributions from ωπ⁰π⁰π⁰, ηπ⁺π⁻π⁰, ωη, and other intermediate states are presented. We observe the J/ψ and ψ(2S) in most of these final states and measure the corresponding branching fractions, many of them for the first time.

Additional Information

© 2021 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3. Received 4 October 2021; accepted 16 November 2021; published 14 December 2021. We are grateful for the extraordinary contributions of our PEP-II2 colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat à l'Energie Atomique and Institut National de Physique Nucléaire et de Physique des Particules (France), the Bundesministerium für Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Economía y Competitividad (Spain), the Science and Technology Facilities Council (United Kingdom), and the Binational Science Foundation (U.S.-Israel). Individuals have received support from the Marie-Curie IEF program (European Union) and the A. P. Sloan Foundation (U.S.).

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Published - PhysRevD.104.112004.pdf

Submitted - 2110.00823.pdf

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Created:
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