First observation of the decay φ→η′(958)γ

被引：21

作者：

Akhmetshin, RR ^{[1
]}

Anashkin, EV

Arpagaus, M

Aulchenko, VM

Banzarov, VS

Barkov, LM

Baru, SE

Bondar, AE

Chernyak, DV

Chertovskikh, AG

Danilov, VV

Dvoretsky, AS

Eidelman, SI

Fedotovich, GV

Gabyshev, NI

Grebeniuk, AA

Grigoriev, DN

Ivanov, PM

Kazanin, VF

Khazin, BI

Klimenkov, AV

Koop, IA

Kurdadze, LM

Kuzmin, AS

Logashenko, IB

Lukin, PA

Lysenko, AP

Maksimov, AV

Okhapkin, VS

Perevedentsev, EA

Polunin, AA

Popkov, EV

Ptitzyn, VI

Purlatz, TA

Root, NI

Ruban, AA

Ryskulov, NM

Shamov, AG

Shatunov, YM

Shekhtman, AI

Shubin, MA

Shwartz, BA

Sidorov, VA

Skrinsky, AN

Smakhtin, VP

Snopkov, IG

Solodov, EP

Stepanov, PY

Sukhanov, AI

Yudin, YV

机构：

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

[2] Boston Univ, Boston, MA 02215 USA

[3] Univ Pittsburgh, Pittsburgh, PA 15260 USA

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

来源：

PHYSICS LETTERS B | 1997年 / 415卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(97)01364-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The decay phi --> eta'gamma has been observed by the CMD-2 detector at the e(+)e(-) collider VEPP-2M at Novosibirsk. Of 5.5 million produced phi's, six events of the phi --> eta'gamma decay were selected with the expected background less than one event. The corresponding branching ratio is B(phi --> eta'gamma) = 1.2(-0.5)(+0.7).10(-4). It is the first observation of this radiative decay. (C) 1997 Published by Elsevier Science B.V.

引用

页码：445 / 451

页数：7

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