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Measurement of the eta -> 3 pi(0) Dalitz plot distribution with the WASA detector at COSY
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2009 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 677, no 1-2, 24-29 p.Article in journal (Refereed) Published
Abstract [en]

In the first production run of the WASA experiment at COSY, the eta decay into three neutral pions was measured in proton-proton interactions at a proton beam kinetic energy of 1.4 GeV. The Dalitz plot of the three pious was Studied using 1.2 x 10(5) fully reconstructed events. and the quadratic slope parameter alpha was determined to be -0.027 +/- 0.008(stat) +/- 0.005(syst). The result is consistent with previous measurements and further corroborates the importance of pion-pion final state interactions. (C) 2009 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2009. Vol. 677, no 1-2, 24-29 p.
Keyword [en]
eta, eta -> 3 pi(0), Dalitz plot
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-128408DOI: 10.1016/j.physletb.2009.03.063ISI: 000267118700005OAI: oai:DiVA.org:uu-128408DiVA: diva2:331543
Available from: 2010-07-23 Created: 2010-07-20 Last updated: 2016-05-10Bibliographically approved

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Kupsc, A
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Department of Physics and AstronomyThe Svedberg Laboratory
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