Three-Quantum Annihilation in Porous Vycor Glass |
| B. Jasińska, J. Wawryszczuk and R. Zaleski
Institute of Physics, Maria Curie-Skłodowska University, pl. Marii Curie-Skłodowskiej 1, 20-031 Lublin, Poland |
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| Received: 20 09 2004; |
| Three methods of determination of 3γ o-Ps decay intensity are compared. The estimate of 3γ fraction obtained from classical lifetime measurements can be distorted due to a higher absorption of theγ quanta from the continuous spectrum of three-quantum decay, compared to two-quantum one. |
| DOI: 10.12693/APhysPolA.107.821 PACS numbers:36.10.Dr, 78.70.Bj |