First observation of φ(1020)→π0π0γ decay

被引：90

作者：

Achasov, MN ^{[1
]}

Aulchenko, VM ^{[1
]}

Berdyugin, AV ^{[1
]}

Bozhenok, AV ^{[1
]}

Bukin, AD ^{[1
]}

Bukin, DA ^{[1
]}

Burdin, SV ^{[1
]}

Dimova, TV ^{[1
]}

Dolinsky, SI ^{[1
]}

Druzhinin, VP ^{[1
]}

Dubrovin, MS ^{[1
]}

Gaponenko, IA ^{[1
]}

Golubev, VB ^{[1
]}

Ivanchenko, VN ^{[1
]}

Koop, IA ^{[1
]}

Korol, AA ^{[1
]}

Koshuba, SV ^{[1
]}

Pakhtusova, EV ^{[1
]}

Perevedentsev, EA ^{[1
]}

Salnikov, AA ^{[1
]}

Serednyakov, SI ^{[1
]}

Shary, VV ^{[1
]}

Shatunov, YM ^{[1
]}

Sidorov, VA ^{[1
]}

Silagadze, ZK ^{[1
]}

Skrinsky, AN ^{[1
]}

Usov, YV ^{[1
]}

Velikzhanin, YS ^{[1
]}

机构：

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

来源：

PHYSICS LETTERS B | 1998年 / 440卷 / 3-4期

基金：

俄罗斯基础研究基金会;

关键词：

scalar; vector; decay; four-quark; gamma; radiative;

D O I：

10.1016/S0370-2693(98)01265-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the SND experiment at VEPP-2M e(+)e(-) collider the phi(1020)-->pi(0)pi(0)gamma decay was studied. Its branching ratio B(phi --> pi(0)pi(0)gamma)=(1.14 +/- 0.10 +/- 0.12).10(-4) was measured. It was shown, that f(0)(980)gamma mechanism dominates in this decay. Corresponding branching ratio B(phi --> f(0)gamma)=(3.42 +/- 0.30 +/- 0.36).10(-4) was obtained. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：442 / 448

页数：7

共 20 条

[1] Energy calibration of the NaI(Tl) calorimeter of the SND detector using cosmic muons [J].