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Dalitz plot analyses of J/ψ → π^+ π^− π^0, J/ψ → K^+K^− π^0, and J/ψ → K^0_s K^±π^∓ produced via e^+ e^− annihilation with initial-state radiation

Lees, J. P. and Chao, D. S. and Cheng, C. H. and Echenard, B. and Flood, K. T. and Hitlin, D. G. and Kim, J. and Miyashita, T. S. and Ongmongkolkul, P. and Porter, F. C. and Röhrken, M. (2017) Dalitz plot analyses of J/ψ → π^+ π^− π^0, J/ψ → K^+K^− π^0, and J/ψ → K^0_s K^±π^∓ produced via e^+ e^− annihilation with initial-state radiation. Physical Review D, 95 (7). Art. No. 072007. ISSN 2470-0010. https://resolver.caltech.edu/CaltechAUTHORS:20170410-153258921

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Abstract

We study the processes e^+e^− → γISR J/ψ, where J/ψ → π^+π^−π^0, J/ψ → K^+K^−π^0, and J/ψ → K^0_SK^±π^∓ using a data sample of 519 fb^(−1) recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e^+e^− collider at center-of-mass energies at and near the Υ(nS) (n=2,3,4) resonances. We measure the ratio of branching fractions R_1 = ^(B(J/ψ → K^+K^−π^0)) /_(B(J/ψ → π^+π^−π^0)) and R_2 = ^(B(J/ψ → K^0_SK^±π^∓))/_(B(J/ψ → π^+π^−π^0)). We perform Dalitz plot analyses of the three J/ψ decay modes and measure fractions for resonances contributing to the decays. We also analyze the J/ψ → π^+π^−π^0 decay using the Veneziano model. We observe structures compatible with the presence of ρ(1450) in all three J/ψ decay modes and measure the relative branching fraction: R(ρ(1450)) = ^(B(ρ(1450) → K^+K^−))/_(B(ρ(1450) → π^+π^−)) = 0.307±0.084(stat)±0.082(sys).


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https://doi.org/10.1103/PhysRevD.95.072007DOIArticle
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.072007#fulltextPublisherArticle
ORCID:
AuthorORCID
Hitlin, D. G.0000-0003-4028-6982
Porter, F. C.0000-0003-1948-8889
Additional Information:© 2017 American Physical Society. Received 6 February 2017; published 10 April 2017. 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 Economia y Competitividad (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union), the A. P. Sloan Foundation (U.S.A.) and the Binational Science Foundation (U.S.A.–Israel). The work of A. Palano, M. R. Pennington and A. P. Szczepaniak were supported (in part) by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Contract No. DE-AC05-06OR23177. We acknowledge P. Colangelo for useful suggestions.
Funders:
Funding AgencyGrant Number
NSFUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Commissariat à l’Energie Atomique (CEA)UNSPECIFIED
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)UNSPECIFIED
Bundesministerium für Bildung und Forschung (BMBF)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Stichting voor Fundamenteel Onderzoek der Materie (FOM)UNSPECIFIED
Research Council of NorwayUNSPECIFIED
Ministry of Education and Science of the Russian Federation UNSPECIFIED
Ministerio de Economia y Competitividad (MINECO)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Marie Curie FellowshipUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Binational Science Foundation (USA-Israel)UNSPECIFIED
Department of Energy (DOE)DE-AC05-06OR23177
Issue or Number:7
Record Number:CaltechAUTHORS:20170410-153258921
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170410-153258921
Official Citation:Dalitz plot analyses of J/ψ→π+π−π0, J/ψ→K+K−π0, and J/ψ→K0sK±π∓ produced via e+e− annihilation with initial-state radiation J. P. Lees et al. (BaBar Collaboration) Phys. Rev. D 95, 072007 (2017) – Published 10 April 2017
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76486
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:11 Apr 2017 16:49
Last Modified:03 Oct 2019 17:01

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