Published 1981
| Version v1
Report
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eta meson problem: eta → π0γγ decay
Creators
- 1. Brussels Univ. (Belgium)
- 2. Nancy-1 Univ., 54 (France). Lab. de Physique des Milieux Ionises
Description
The experiments on search for the eta→π0γγ decay have been carried out with the sensitivity, some tens times higher than that in the papers, reporting earlier on the observation of this decay. The measurements have been performed at the IHEP 70-GeV accelerator using the GAMS-2000 hodoscope γ-spectrometer. It is shown that eta→π0γγ decay had not been observed in previous experiments. The upper limit for its partial width is obtained (90% C.L.): BR(eta→π0γγ)<3x10-3
Availability note (English)
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13660875.pdf
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Additional details
Additional titles
- Original title (Russian)
- Проблема ета-мезона: распад ета â†' Ï€
Publishing Information
- Imprint Pagination
- 8 p.
- Report number
- IFVE-OEF--81-12
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 13660875
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ETA MESONS; EXPERIMENTAL DATA; LIMITING VALUES; MASS SPECTRA; PARTICLE DECAY; PARTICLE PRODUCTION; PARTICLE WIDTHS; PHOTONS; PIONS NEUTRAL
- Descriptors DEC
- BOSONS; DATA; DECAY; ELEMENTARY PARTICLES; HADRONS; INFORMATION; INTERACTIONS; MASSLESS PARTICLES; MESONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; SPECTRA
Optional Information
- Notes
- 22 refs.; 3 figs.
- Secondary number(s)
- SERP-E--140.