TTP99-20 alpha^2 corrections to parapositronium decay
A. Czarnecki, K. Melnikov and A. Yelkhovsky |
Phys. Rev. Lett. 83 1135-1138 1999 |
PDF PostScript arXiv |
A. Czarnecki, K. Melnikov and A. Yelkhovsky |
Phys. Rev. Lett. 83 1135-1138 1999 |
PDF PostScript arXiv |