Study of the decay φ → π + π − π 0 with the KLOE detector

نویسندگان

  • C. Bacci
  • V. Bocci
  • P. Branchini
  • M. Casarsa
  • F. Ceradini
  • F. Cevenini
  • G. Chiefari
  • G. De Robertis
  • B. Di Micco
  • A. Farilla
  • M. L. Ferrer
  • P. Franzini
  • F. Grancagnolo
  • E. Graziani
  • F. Lacava
  • G. Lanfranchi
  • L. Merola
  • A. Nedosekin
  • A. Passeri
  • E. Santovetti
  • R. D. Schamberger
  • F. Scuri
  • A. Ventura
  • G. W. Yu
چکیده

We present a study of the reaction e+e−→π+π−π0 at the φ peak, W = M(φ) =1019.4 MeV, observed with the KLOE detector at DAΦNE. The reaction is dominated by φ production and decay, e+e−→φ→π+π−π0. From a fit to the Dalitz plot density distribution we obtain the ρ-meson parameters for its three charge states. We also find the relative amplitudes for φ→ρπ and φ→π+π−π0 and the cross section for e+e− → ωπ0 with ω → π+π−.

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Ja n 20 05 Study of the decay φ → π + π − π 0 with the KLOE detector

We present a study of the reaction e+e−→π+π−π0 at the φ peak, W = M(φ) =1019.4 MeV, observed with the KLOE detector at DAΦNE. The reaction is dominated by φ production and decay, e+e−→φ→π+π−π0. From a fit to the Dalitz plot density distribution we obtain the ρ-meson parameters for its three charge states. We also find the relative amplitudes for φ→ρπ and φ→π+π−π0 and the cross section for e+e− ...

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تاریخ انتشار 2003