MEASUREMENT OF THE OMEGA-]ETA-GAMMA DECAY BRANCHING RATIO

Authors
ABELE A ADOMEIT J AMSLER C BAKER CA BARNETT BM BATTY CJ BENAYOUN M BERDOZ A BEUCHERT K BISCHOFF S BLUM P BRAUNE K BUGG DV CASE T COOPER A CRAMER O CROWE KM CREDE V DEGENER T DJAOSHVILI N VONDOMBROWSKI S DOSER M DUNNWEBER W EHMANNS A ENGELHARDT D FAESSLER MA GIARRITTA P HACKMANN R HADDOCK RP HEINSIUS FH HEINZELMANN M HERZ M HESSEY NP HIDAS P HODD C HOLTZHAUSSEN C JAMNIK D KALINOWSKY H KALTEYER B KAMMLE B KAMMEL P KISIEL J KLEMPT E KOCH H KOLO C KURILLA U KUNZE M LAKATA M LANDUA R LUDEMANN J MATTHAY H MCCRADY R MEIER J MEYER CA MONTANET L OUARED R OULDSAADA F PETERS K PICK B PIETRA C PINDER CN RATAJCZAK M REGENFUS C RESAG S ROETHEL W SCHMIDT P SCOTT I SEIBERT R SPANIER S STOCK H STRASSBURGER C STROHBUSCH U SUFFERT M THOMA U TISCHHAUSER M VOLCKER C WALLIS S WALTHER D WIEDNER U ZOU BS
Citation
A. Abele et al., MEASUREMENT OF THE OMEGA-]ETA-GAMMA DECAY BRANCHING RATIO, Physics letters. Section B, 411(3-4), 1997, pp. 361-372
Citations number
26
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
411
Issue
3-4
Year of publication
1997
Pages
361 - 372
Database
ISI
SICI code
0370-2693(1997)411:3-4<361:MOTODB>2.0.ZU;2-H
Abstract
We have measured the branching ratio for the radiative decay omega --> eta gamma with omega mesons produced in antiproton-proton annihilatio n at rest into pi(0) omega and eta omega. Taking into account rho - om ega mixing we find a branching ratio B(omega --> eta gamma) = (6.6 +/- 1.7) x 10(-4), in accord with the constructive interference solution in other experiments. The upper-limit for the direct radiative decay o mega --> 3 gamma is 1.9 x 10(-4) at 95% confidence level. (C) 1997 Els evier Science B.V.