Study of the e+e-→ηγ process with Spherical Neutral Detector at the VEPP-2M e+e- collider

被引：30
作者：
Achasov, M. N. [1 ]
Aulchenko, V. M.
Beloborodov, K. I.
Berdyugin, A. V.
Bogdanchikov, A. G.
Bozhenok, A. V.
Bukin, D. A.
Dimova, T. V.
Druzhinin, V. P.
Golubev, V. B.
Korol, A. A.
Koshuba, S. V.
Otboev, A. V.
Pakhtusova, E. V.
Serednyakov, S. I.
Shatunov, Yu. M.
Sidorov, V. A.
Silagadze, Z. K.
Skrinsky, A. N.
Vasiljev, A. V.
机构：
[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
来源：
PHYSICAL REVIEW D | 2006年 / 74卷 / 01期
关键词：
D O I：
10.1103/PhysRevD.74.014016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In experiment with the SND detector at the VEPP-2M e(+)e(-) collider the e(+)e(-)->eta gamma cross section was measured in the center-of-mass energy range E=0.60-1.38 GeV with the integrated luminosity of 27.8 pb(-1). The measured cross section is well described by the vector meson dominance model with contributions from the rho(770), omega(783), phi(1020), rho(')(1465) resonances and agrees with results of previous measurements. The decay probabilities B(phi ->eta gamma), B(omega ->eta gamma) and B(rho ->eta gamma) were measured with the accuracies better than or comparable to the world averages.
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页数：10
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