Observation of the decay φ→ωπ0

被引：21

作者：

Achasov, MN ^{[1
]}

Baru, SE

Berdyugin, AV

Bozhenok, AV

Bukin, DA

Burdin, SV

Dimova, TV

Dolinsky, SI

Druzhinin, VP

Dubrovin, MS

Gaponenko, IA

Golubev, VB

Ivanchenko, VN

Korol, AA

Korostelev, MS

Koshuba, SV

Pakhtusova, EV

Polunin, AA

Pyata, EE

Salnikov, AA

Shary, VV

Serednyakov, SI

Shatunov, YM

Sidorov, VA

Skrinsky, AN

Silagadze, ZK

Velikzhanin, YS

机构：

[1] Novosibirsk State Univ, Novosibirsk 630090, Russia

[2] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

来源：

PHYSICS LETTERS B | 1999年 / 449卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(99)00043-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The reaction e(+)e(-) --> omega pi(0) --> pi(+)pi(-)pi(0)pi(0) has been studied with SND detector at VEPP-2M e(+)e(-) coIlider in the vicinity of the phi meson resonance. The observed interference pattern in the energy dependence of the cross section is consistent with existence of the decay phi --> omega pi(0) with a branching ratio of B(phi --> omega pi(0)) = (4.8(-1.7)(+1.9) +/- 0.8) x 10(-5). The real and imaginary parts of the decay amplitude were measured. The phi --> omega pi(0) decay was observed for the first time. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：122 / 127

页数：6

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