MODEL-INDEPENDENT MEASUREMENT OF OMEGA-]ETA-GAMMA DECAY BRANCHING RATIO

Authors
ALDE D BINON FG BOUTEMEUR M BRICMAN C DONSKOV SV GOUANERE M INYAKIN AV KACHANOV VA KHAUSTOV GV KNAPP EA KONDASHOV AA KULIK AV LANDSBERG GL LEDNEV AA LISHIN VA PEIGNEUX JP POLOVNIKOV SA POLYAKOV VA POULET M PROKOSHKIN YD SADOVSKY SA SAMOYLENKO VD SHAGIN PM SHTANNIKOV AV SINGOVSKY AV STROOT JP SUGONYAEV VP
Citation
D. Alde et al., MODEL-INDEPENDENT MEASUREMENT OF OMEGA-]ETA-GAMMA DECAY BRANCHING RATIO, Zeitschrift fur Physik. C, Particles and fields, 61(1), 1994, pp. 35-40
Citations number
25
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
61
Issue
1
Year of publication
1994
Pages
35 - 40
Database
ISI
SICI code
0170-9739(1994)61:1<35:MMOODB>2.0.ZU;2-F
Abstract
The rare etagamma decay width of the omega-meson has been measured in a model-independent way, with omega produced in 38 GeV/c pi- p charge- exchange. Large momentum transfer events have been selected in order t o eliminate omega - rho interference contribution. BR (omega --> etaga mma) = (8.3 +/- 2.1). 10(-4). The gammas from omega --> etagamma --> 3 gamma decay have been detected with the multiphoton spectrometer GAMS- 2000 at the IHEP 70 GeV proton accelerator.