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The pd →3Heηπ0 reaction at Tp = 1450 MeV
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Department of Physics, Stockholm University.
Physikalisches Institut der Universität Tuebingen.
Soltan Institute of Nuclear Studies, Poland.
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2010 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 685, no 1, 33-37 p.Article in journal (Refereed) Published
Abstract [en]

The cross section for the pd→3Heηπ0 reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring and detecting one 3He and four photons from the decays of the two mesons. The data indicate that the production mechanism involves the formation of the Δ(1232) isobar. Although the beam energy does not allow the full peak of this resonance to be seen, the invariant masses of all three pairs of final particles are well reproduce dby a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the π0 momentum in the 3He π0 system.

Place, publisher, year, edition, pages
2010. Vol. 685, no 1, 33-37 p.
Keyword [en]
eta, pi0 meson production, invariant mass distribution, Δ resonance
National Category
Subatomic Physics
Research subject
Physics with specialization in Nuclear Physics
URN: urn:nbn:se:uu:diva-120157DOI: 10.1016/j.physletb.2010.01.042ISI: 000275148600006OAI: oai:DiVA.org:uu-120157DiVA: diva2:302783
Available from: 2010-03-09 Created: 2010-03-09 Last updated: 2016-05-10Bibliographically approved

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Schönning, KarinGeren, L.Kupsc, AndrzejWolke, Magnus
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Department of Physics and AstronomyThe Svedberg LaboratoryDepartment of Physics and Astronomy
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Physics Letters B
Subatomic Physics

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