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Measurements of J/ψ decays into 2(π+π−)η and 3(π+π−)η
- Source :
- Physics Letters B. 610:192-198
- Publication Year :
- 2005
- Publisher :
- Elsevier BV, 2005.
-
Abstract
- Based on a sample of 5.8 x 10(7) J/psi events taken with the BESII detector, the branching fractions of J/psi -> 2(pi(+)pi(-))eta and J/psi -> 3(pi(+)pi(-))eta are measured for the first time to be (2.26 +/- 0.08 +/- 0.27) x 10(-3) and (7.24 +/- 0.96 +/- 1.11) x 10(-4), respectively. (c) 2005 Elsevier B.V. All rights reserved.
Details
- ISSN :
- 03702693
- Volume :
- 610
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi...........cfc8f3a9a2c4054c8f246f54921e9cd7