|
|||||
|
|
Neutral decays of the η-meson |
|
| Authors: | D. Alde F. Binon C. Bricman S. V. Donskov P. Duteil M. Gouanère A. V. Inyakin D. B. Kakauridze V. A. Kachanov G. V. Khaustov A. V. Kulik J. P. Lagnaux A. A. Lednev V. A. Maisheev Yu. M. Melnik Yu. V. Mikhailov Th. Mouthuy J. P. Peigneux A. Possoz Yu. D. Prokoshkin Yu. V. Rodnov S. A. Sadovsky P. M. Shagin D. Sillou A. V. Singovsky J. P. Stroot V. P. Sugonyaev |
| Affiliation: | 1. CERN, CH-1211, Geneva 23, Switzerland 3. Institut Interuniversitaire des Sciences Nucléaires, B-1050, Brussels, Belgium 4. Institute for High Energy Physics, SU-142284, Serpukhov, USSR 5. Laboratoire d'Annecy de Physique des Particules, F-74019, Annecy-le-Vieux, France |
| Abstract: | The partial widths of η-meson decays η→2γ, η→3π0 and η→π0γγ have been measured in a high accuracy experiment made at the IHEP accelerator with the hodoscope electromagnetic spectrometer GAMS-2000. An upper limit has been determined for the 3γ channel. The Dalitz plot of the η decay into 3π0 shows that the matrix element does not depend on the pion energy. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |