Abstract
The annihilation frequency of the reaction at rest in liquid hydrogen has been measured by the Obelix experiment by using different apparatus configurations and trigger conditions. The value obtained is With the same data samples, the annihilation frequency has been determined to be The results are discussed within the frame of the present experimental situation.
- Received 8 August 2001
DOI:https://doi.org/10.1103/PhysRevD.65.012001
©2001 American Physical Society