Measurement of the ω,ρ→π0e+e- branching fractions

被引：6

作者：

Achasov, M. N. ^{[1
,2
]}

Beloborodov, K. I. ^{[1
,2
]}

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

Bogdanchikov, A. G. ^{[1
]}

Bukin, A. D. ^{[1
,2
]}

Bukin, D. A. ^{[1
]}

Vasil'ev, A. V. ^{[1
,2
]}

Golubev, V. B. ^{[1
,2
]}

Dimova, T. V. ^{[1
,2
]}

Druzhinin, V. P. ^{[1
,2
]}

Koop, I. A. ^{[1
,2
]}

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

Koshuba, S. V. ^{[1
]}

Pakhtusova, E. V. ^{[1
]}

Perevedentsev, E. A. ^{[1
]}

Serednyakov, S. I. ^{[1
,2
]}

Silagadze, Z. K. ^{[1
,2
]}

Skrinsky, A. N. ^{[1
]}

Shatunov, Yu. M. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2008年 / 107卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/S1063776108070054

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The e(+)e(-)->omega, rho ->pi(0)e(+)e(-) processes have been investigated in the experiments with Spherical Neutral Detector at the VEPP-2M e(+)e(-) collider. The measurements provide the probability B(omega ->pi(0)e(+)e(-)) = ( 0.761 +/- 0.053 +/- 0.064) x 10(-3) of the omega ->pi(0)e(+)e(-) conversion decay and the upper limit B(omega ->pi(0)e(+)e(-)) < 1.2 x 10(-5) (at 90% CL) for the rho ->pi(0)e(+)e(-) decay. The transition form factor was measured at three values of the 4-momentum transfer squared.

引用

页码：61 / 68

页数：8

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