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Measurement of the slope parameter for the η → 3π0 decay in the pp → ppη reaction
Uppsala University, The Svedberg Laboratory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
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2007 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 76, no 4, 048201- p.Article in journal (Refereed) Published
Abstract [en]

The CELSIUS-WASA setup is used to measure the 3π0 decay of η mesons produced in pp interactions with beam kinetic energies of 1.36 and 1.45 GeV. The efficiency-corrected Dalitz plot and density distributions for this decay are shown, together with a fit of the quadratic slope parameter α yielding α = −0.026 ± 0.010(stat) ± 0.010(syst). This value is compared to recent experimental results and theoretical predictions.

Place, publisher, year, edition, pages
2007. Vol. 76, no 4, 048201- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-16829DOI: 10.1103/PhysRevC.76.048201ISI: 000250620900091OAI: oai:DiVA.org:uu-16829DiVA: diva2:44600
Available from: 2008-06-16 Created: 2008-06-16 Last updated: 2016-04-29Bibliographically approved

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Calén, HansFransson, KjellGustafsson, LeifHöistad, BoJacewicz, MarekJohansson, TordKeleta, SamsonKullander, SvenKupsc, AndrzejMarciniewski, PawelPettersson, HenrikSchönning, KarinZlomanczuk, Jozef
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The Svedberg LaboratoryDepartment of Nuclear and Particle PhysicsNuclear and Particle Physics
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Physical Review C. Nuclear Physics
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