Amplitude Analysis of the π⁰π⁰ System Produced in Radiative J/ψ Decays

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dc.contributor.Scopus56366505900 (Lou, X)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAblikim, M.en_US
dc.contributor.authorAchasov, M. N.en_US
dc.contributor.authorAi, X. C.en_US
dc.contributor.authorAlbayrak, O.en_US
dc.contributor.authorAlbrecht, M.en_US
dc.contributor.authorAmbrose, D. J.en_US
dc.contributor.authorAmoroso, A.en_US
dc.contributor.authorLou, Xinchou (UT Dallas)en_US
dc.date.accessioned2016-03-28T22:01:55Z
dc.date.available2016-03-28T22:01:55Z
dc.date.created2015-09-14en_US
dc.date.issued2015-09-14en_US
dc.descriptionIncludes Erratum (doi:10.1103/PhysRevD.93.039906)en_US
dc.description.abstractAn amplitude analysis of the π⁰π⁰ system produced in radiative J/ψ decays is presented. In particular, a piecewise function that describes the dynamics of the π⁰π⁰ system is determined as a function of M(π⁰π⁰) from an analysis of the (1.311 ± 0.011) x 10⁹ J/ψ decays collected by the BESIII detector. The goal of this analysis is to provide a description of the scalar and tensor components of the π⁰π⁰ system while making minimal assumptions about the properties or number of poles in the amplitude. Such a model-independent description allows one to integrate these results with other related results from complementary reactions in the development of phenomenological models, which can then be used to directly fit experimental data to obtain parameters of interest. The branching fraction of J/ψ → π⁰π⁰ is determined to be (1.15 ± 0.05) x 10⁻³, where the uncertainty is systematic only and the statistical uncertainty is negligible.en_US
dc.description.sponsorship"The BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11125525, No. 11235011, No. 11322544, No. 11335008, and No. 11425524; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); the Collaborative Innovation Center for Particles and Interactions (CICPI); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. 11179007, No. U1232201, No. U1332201; CAS under Contracts No. KJCX2-YW-N29, No. KJCX2-YW-N45; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Collaborative Research Center Contract No. CRC-1044; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; Russian Foundation for Basic Research under Contract No. 14-07-91152; U.S. Department of Energy under Contracts No. DE-FG02-04ER41291, No. DE-FG02-05ER41374, No. DE-FG02-94ER40823, No. DESC0010118; U.S. National Science Foundation; University of Groningen (RuG) and the Helmholtzzentrum für Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0; and U.S. Department of Energy under Grant No. DE-FG02-87ER40365. This research was supported in part by Lilly Endowment, Inc., through its support for the Indiana University Pervasive Technology Institute, and in part by the Indiana METACyt Initiative. The Indiana METACyt Initiative at IU is also supported in part by Lilly Endowment, Inc."en_US
dc.identifier.issn1550-7998en_US
dc.identifier.issue5en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4824
dc.identifier.volume92en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.92.052003en_US
dc.rights©2015 American Physical Societyen_US
dc.sourcePhysical Review D
dc.subjectJ/ψ (J/psi) mesonen_US
dc.subjectMesonsen_US
dc.titleAmplitude Analysis of the π⁰π⁰ System Produced in Radiative J/ψ Decaysen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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