Discussion about the orthopositronium decay rate and analysis of some O(alpha**2) contributions

/ Authors

/ Abstract

I consider the problem of the evaluation of the orthopositronium decay rate, including second order radiative corrections. I present a brief theoretical discussion of this problem and a review of the results available in literature, and, then, I analyze some $O(\alpha^2)$ annihilation-type contributions, recently computed.

Discussion about the orthopositronium decay rate and analysis of some O(alpha**2) contributions

/ Authors

V. Antonelli

/ Abstract

I consider the problem of the evaluation of the orthopositronium decay rate, including second order radiative corrections. I present a brief theoretical discussion of this problem and a review of the results available in literature, and, then, I analyze some $O(\alpha^2)$ annihilation-type contributions, recently computed.