Search for the f1(1285) → π+π-π0 decay with the VES detector

被引：9

作者：

Dorofeev, V. ^{[1
]}

Dzhelyadin, R. ^{[1
]}

Ekimov, A. ^{[1
]}

Gavrilov, Yu. ^{[1
]}

Gouz, Yu. ^{[1
]}

Ivashin, A. ^{[1
]}

Kabachenko, V. ^{[1
]}

Kachaev, I. ^{[1
]}

Karyukhin, A. ^{[1
]}

Khokhlov, Yu. ^{[1
]}

Konstantinov, V. ^{[1
]}

Makouski, M. ^{[1
]}

Matveev, V. ^{[1
]}

Myagkov, A. ^{[1
]}

Nikolaenko, V. ^{[1
]}

Ostankov, A. ^{[1
]}

Polyakov, B. ^{[1
]}

Ryabchikov, D. ^{[1
]}

Shalanda, N. ^{[1
]}

Soldatov, M. ^{[1
]}

Solodkov, A. A. ^{[1
]}

Solodkov, A. V. ^{[1
]}

Solovianov, O. ^{[1
]}

Starchenko, E. ^{[1
]}

Zaitsev, A. ^{[1
]}

机构：

[1] IHEP, Protvino 142281, Moscow Region, Russia

来源：

EUROPEAN PHYSICAL JOURNAL A | 2008年 / 38卷 / 02期

关键词：

14.40.Cs Other mesons with ; = ; = 0 , mass < 2.5 GeV; 13.25.Jx Decays of other mesons; 12.39.Fe Chiral Lagrangians;

D O I：

10.1140/epja/i2008-10664-8

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The isospin-violating decay f(1)(1285) -> pi(+)pi(-)pi(0) has been studied at the VES facility. This study is based on the statistics acquired in pi Be- interactions at 27, 36.6 and 41 GeV/c in the diffractive reaction pi N- -> (f(1)pi(-))N. The f(1)(1285) -> pi(+)pi(-)pi(0) decay is observed. The preliminary ratio of decay probabilities BR(f(1)(1285) -> pi(+)pi(-)pi(0)) to BR(f(1)(1285) -> eta pi(+)pi(-)) . BR(eta -> gamma gamma) is similar to 2%.

引用

页码：149 / 154

页数：6

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