Abstract
The annihilation frequency of the reaction p̄p→π 0π0 at rest in liquid hydrogen has been measured by the Obelix experiment by using different apparatus configurations and trigger conditions. The value obtained is f(π0π0, LH) = (2.8±0.1stat±0.4syst)×10 -4. With the same data samples, the π0η annihilation frequency has been determined to f(π0η, LH) = (0.9±0.2stat±0.15syst)×10 -4. The results are discussed within the frame of the present experimental situation.
Lingua originale | Inglese |
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Rivista | Physical Review D |
Volume | 65 |
Numero di pubblicazione | 1 |
DOI | |
Stato di pubblicazione | Pubblicato - 1 gen 2002 |