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Measurement of the eta->pi+pi-e+e- decay branching ratio

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 نشر من قبل Andrzej Kup\\'s\\'c Dr
 تاريخ النشر 2006
  مجال البحث
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The reaction pd->3He 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)x10^-4.



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