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Measurement of the eta -> pi(+)pi(-)e(+)e(-) decay branching ratio
Uppsala University, The Svedberg Laboratory.
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2007 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 644, no 5-6, 299-303 p.Article in journal (Refereed) Published
Abstract [en]

The reaction pd -> He-3 eta at threshold was used to provide a clean source of eta mesons for decay studies with the WASA detector at CELSIUS. The branching ratio of the decay eta -> pi(+)pi(-)e(+)e(-) is measured to be (4.3 +/- 1.3 +/- 0.4) x 10(-4).

Place, publisher, year, edition, pages
2007. Vol. 644, no 5-6, 299-303 p.
Keyword [en]
eta meson decays, dalitz decays
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-146269DOI: 10.1016/j.physletb.2006.12.008ISI: 000243851000003OAI: oai:DiVA.org:uu-146269DiVA: diva2:397909
Available from: 2011-02-16 Created: 2011-02-16 Last updated: 2017-12-11

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Gerén, L.Kupsc, AndrzejSchönning, Karin

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The Svedberg LaboratoryDepartment of Nuclear and Particle Physics
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