Study of the process e+e- → ηγ in c.m. energy range 600-1380 MeV at CMD-2

被引：48

作者：

Akhmetshin, RR ^{[1
]}

Anashkin, EV

Aulchenko, VM

Banzarov, VS

Baratt, A

Barkov, LM

Baru, SE

Bashtovoy, NS

Bondar, AE

Bondarev, DV

Bragin, AV

Chernyak, DV

Eidelman, SI

Fedotovitch, GV

Gabyshev, NI

Grebeniuk, AA

Grigoriev, DN

Hughes, VW

Ignatov, FV

Karpov, SV

Kazanin, VF

Khazin, BI

Koop, IA

Krokovny, PP

Kurdadze, LM

Kuzmin, AS

Logashenko, IB

Lukin, PA

Lysenko, AP

Mikhailov, KY

Milstein, AI

Nesterenko, IN

Okhapkin, VS

Otboev, AV

Perevedentsev, EA

Popov, AS

Root, NI

Ruban, AA

Ryskulov, NM

Shamov, AG

Shatunov, YM

Shwartz, BA

Sibidanov, AL

Sidorov, VA

Skrinsky, AN

Smakhtin, VP

Snopkov, IG

Solodov, EP

Stepanov, PY

Sukhanov, AI

机构：

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

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[4] Yale Univ, New Haven, CT 06511 USA

来源：

PHYSICS LETTERS B | 2001年 / 509卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(01)00567-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The cross section of the process e(+)e(-) --> eta gamma has been measured in the 600-1380 MeV c.m. energy range with the CMD-2 detector. The following branching ratios have been determined: B(rho --> eta gamma) = (3.28 +/- 0.37 +/- 0.23) x 10(-4), B(omega --> eta gamma) = (5.10 +/- 0.72 +/- 0.34) x 10(-4). B(phi --> eta gamma) = (1.287 +/- 0.013 +/- 0.063) x 10(-2). Evidence for the rho (1450) --> eta gamma decay has been obtained for the first Lime. (C) 2001 Published by Elsevier Science B.V.

引用

页码：217 / 226

页数：10

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