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Study of ϕ→π+π−π0 with CMD-2 detector
- Source :
- Physics Letters B. 642:203-209
- Publication Year :
- 2006
- Publisher :
- Elsevier BV, 2006.
-
Abstract
- The cross section of the process e+e−→π+π−π0 has been measured in the c.m. energy range 984–1060 MeV with the CMD-2 detector at the VEPP-2M collider. The obtained value of Br(ϕ→e+e−)Br(ϕ→π+π−π0)=(4.51±0.16±0.11)×10−5 is in good agreement with the previous measurements and has the best accuracy. Analysis of the Dalitz plot was performed. The contributions of the dominant ϕ→ρπ mechanism as well as of a small direct ϕ→3π amplitude were determined.
Details
- ISSN :
- 03702693
- Volume :
- 642
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi...........ffdf4f481d68152b96535bb5a33df350