Search for $f_1(1285)\to {\pi }^{+}{\pi }^{-}{\pi }^0$ decay with VES detector

Abstract

The isospin violating decay $f_1(1285)\to {\pi }^{+}{\pi }^{-}{\pi }^0$ has been studied at VES facility. This study is based at the statistics acquired in ${\pi }^{-}Be$ interactions at 27, 36.6 and 41 GeV/c in diffractive reaction ${\pi }^{-}N\to (f_1{\pi }^{-})N$. The $f_1(1285)\to {\pi }^{+}{\pi }^{-}{\pi }^0$ decay is observed. The ratio of decay probabilities $BR(f_1(1285)\to {\pi }^{+}{\pi }^{-}{\pi }^0)$ to $BR(f_1(1285)\to \eta {\pi }^{+}{\pi }^{-})\cdot BR(\eta \to \gamma \gamma )$ is $\sim 1.4$.

10 pages, 8 figures, presented at XII Conference on Hadron Spectroscopy

References in corpus (1)

• Study of ${\eta }^{\prime }\to \eta {\pi }^{+}{\pi }^{-}$ Dalitz plot

Cited by in corpus (1)

• Strong isospin symmetry breaking in light scalar meson production