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FIRST OBSERVATION OF THE DECAY PHI-]ETA'(958)GAMMA

Authors

AKHMETSHIN RR 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 ZVEREV SG BROWN DH ROBERTS BL THOMPSON JA HUGHES VW

Citation

Rr. Akhmetshin et al., FIRST OBSERVATION OF THE DECAY PHI-]ETA'(958)GAMMA, Physics letters. Section B, 415(4), 1997, pp. 445-451

Citations number

Journal title

Physics letters. Section B → ACNP

ISSN journal

03702693

Volume

415

Issue

Year of publication

1997

Pages

445 - 451

Database

ISI

SICI code

0370-2693(1997)415:4<445:FOOTDP>2.0.ZU;2-6

Abstract

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 t he expected background less than one event. The corresponding branchin g ratio is B(phi --> eta'gamma) = 1.2(-0.5)(+0.7).10(-4). It is the fi rst observation of this radiative decay. (C) 1997 Published by Elsevie r Science B.V.