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Measurement of the f1(1285) → π+ππ0 decay

  • V. Dorofeev
  • A. Ekimov
  • Yu. Gouz
  • A. Ivashin
  • I. Kachaev
  • A. Karyukhin
  • Yu. Khokhlov
  • V. Konstantinov
  • V. Matveev
  • V. Nikolaenko
  • B. Polyakov
  • D. Ryabchikov
  • N. Shalanda
  • M. Soldatov
  • A. A. Solodkov
  • A. V. Solodkov
  • O. Solovianov
  • A. Zaitsev
Open Access
Regular Article - Experimental Physics

Abstract

The isospin symmetry-breaking (ISB) decay f 1(1285) → π+ππ0 has been studied at the VES facility. The branching ratio is measured: \(\frac{{BR\left( {f_1 \to \pi ^ + \pi ^ - \pi ^0 } \right)}} {{BR\left( {f_1 \to \eta \pi ^ + \pi ^ - } \right)}} = 0.86 \pm 0.16_{ - 0.20}^{ + 0.70} \%\) . An upper limit for the f 1 decay into ρ(770)π is obtained: BR(f 1(1285) → ρ +−π−+) < 0.31% at 95% CL.

Keywords

Decay Chain Detector Resolution Spectrum Ratio Universal Scale Explicit Substitution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • V. Dorofeev
    • 1
  • A. Ekimov
    • 1
  • Yu. Gouz
    • 1
  • A. Ivashin
    • 1
  • I. Kachaev
    • 1
  • A. Karyukhin
    • 1
  • Yu. Khokhlov
    • 1
    • 2
  • V. Konstantinov
    • 1
  • V. Matveev
    • 1
  • V. Nikolaenko
    • 1
  • B. Polyakov
    • 1
  • D. Ryabchikov
    • 1
  • N. Shalanda
    • 1
  • M. Soldatov
    • 1
  • A. A. Solodkov
    • 1
  • A. V. Solodkov
    • 1
  • O. Solovianov
    • 1
  • A. Zaitsev
    • 1
    • 2
  1. 1.Institute for High Energy PhysicsProtvinoRussia
  2. 2.Moscow Institute of Physics and TechnologyMoscowRussia

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