Measurement of the f1(1285) → π+π−π0 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

doi:10.1140/epja/i2011-11068-5

EPJ

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2021 Impact factor 3.131

Hadrons and Nuclei

Open Access

Eur. Phys. J. A (2011) 47: 68
https://doi.org/10.1140/epja/i2011-11068-5

Regular Article - Experimental Physics

Measurement of the f₁(1285) → π⁺π⁻π⁰ decay

V. Dorofeev¹, A. Ekimov¹, Yu. Gouz¹, A. Ivashin¹, I. Kachaev¹, A. Karyukhin¹, Yu. Khokhlov¹^,2^*, V. Konstantinov¹, V. Matveev¹, V. Nikolaenko¹, B. Polyakov¹, D. Ryabchikov¹, N. Shalanda¹, M. Soldatov¹, A. A. Solodkov¹, A. V. Solodkov¹, O. Solovianov¹ and A. Zaitsev¹^,2

¹ Institute for High Energy Physics, Protvino, Russia
² Moscow Institute of Physics and Technology, Moscow, Russia

^* e-mail: Yury.Khokhlov@ihep.ru

Received: 17 October 2010
Revised: 29 March 2011
Accepted: 13 April 2011
Published online: 30 May 2011

Abstract

The isospin symmetry-breaking (ISB) decay f ₁(1285) → π⁺π⁻π⁰ has been studied at the VES facility. The branching ratio is measured: . 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.