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Dalitz plot analysis of the decay ω→π+π−π0
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.ORCID iD: 0000-0002-6945-716x
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.ORCID iD: 0000-0003-4937-2270
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Number of Authors: 4652018 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 98, no 11, article id 112007Article in journal (Refereed) Published
Abstract [en]

Using a low-background sample of 2.6 x 10(5) J/psi -> omega eta(omega -> pi(+) pi(-) pi(0), eta -> gamma gamma) events, about 5 times larger statistics than previous experiments, we present a Dalitz plot analysis of the decay omega -> pi(+) pi(-) pi(0). It is found that the Dalitz plot distribution differs from the pure P-wave phase space with a statistical significance of 18.9 sigma. The parameters from the fit to data are in reasonable agreement with those without the cross-channel effect within the dispersive framework, which indicates that the cross-channel effect in omega -> pi(+) pi(-) pi(0) is not significant.

Place, publisher, year, edition, pages
2018. Vol. 98, no 11, article id 112007
National Category
Subatomic Physics Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-373234DOI: 10.1103/PhysRevD.98.112007ISI: 000454167100001OAI: oai:DiVA.org:uu-373234DiVA, id: diva2:1278276
Funder
Swedish Research Council
Note

Title in WoS: Dalitz plot analysis of the decay omega -> pi(+) pi(-) pi(0)

For complete list of authors see http://dx.doi.org/10.1103/PhysRevD.98.112007

Available from: 2019-01-14 Created: 2019-01-14 Last updated: 2019-01-14Bibliographically approved

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Andersson, Walter IkegamiJohansson, TordKupsc, AndrzejLi, CuiPapenbrock, MichaelPettersson, JoachimSchönning, KarinWolke, Magnus

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Physical Review D: covering particles, fields, gravitation, and cosmology
Subatomic PhysicsAstronomy, Astrophysics and Cosmology

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