Published January 2000
| Version v1
Journal article
Experimental study of the processes e+e-→φ→ηγ,π0γ at VEPP-2M
Creators
- Achasov, M.N.1
- Berdyugin, A.V.1
- Bozhenok, A.V.1
- Bukin, D.A.1
- Burdin, S.V.1
- Dimova, T.V.1
- Druzhinin, V.P.1
- Dubrovin, M.S.1
- Gaponenko, I.A.1
- Golubev, V.B.1
- Ivanchenko, V.N.1
- Korol, A.A.1
- Koshuba, S.V.1
- Pakhtusova, E.V.1
- Salnikov, A.A.1
- Serednyakov, S.I.1
- Shary, V.V.1
- Shatunov, Yu.M.1
- Sidorov, V.A.1
- Silagadze, Z.K.1
- 1. Institute of Nuclear Physics, Novosibirsk (Russian Federation)
Description
The processes e+e-→ηγ, π0γ→3γ were studied in the SND experiment at the VEPP-2M collider in the energy region of the φ meson. The branching ratios obtained in this study are Br(φ→ηγ)=(1.338±0.012±0.052)% and Br(φ→π0γ)=(1.226±0.036-0.089+0.096) x 10-3. A comparison of the experimental data with different theoretical models was performed. (orig.)
Additional details
Publishing Information
- Journal Title
- European Physical Journal. C
- Journal Volume
- 12
- Journal Issue
- 1
- Journal Page Range
- p. 25-33
- ISSN
- 1434-6044
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 32017268
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANNIHILATION; BRANCHING RATIO; ELECTRON-POSITRON INTERACTIONS; ETA MESONS; EXPERIMENTAL DATA; GEV RANGE 01-10; INTEGRAL CROSS SECTIONS; PHOTONS; PIONS NEUTRAL; RADIATIVE DECAY
- Descriptors DEC
- BOSONS; CROSS SECTIONS; DATA; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRONS; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MASSLESS PARTICLES; MESONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PIONS; PSEUDOSCALAR MESONS
Optional Information
- Notes
- 21 refs.