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Bound +- System

Ulrich Jentschura
Gerhard Soff
Organization: Technische Universitat Dresden
Department: Institut fur Theoretische Physik
Journal / Anthology

Physical Review A
Year: 1997
Volume: 56
Issue: 6
Page range: 4483-4495

We consider the hyperfine structure, the atomic spectrum, and the decay channels of the bound m+m- system (dimuonim). The annihilation lifetimes of low-lying atomic states of the system lie in the 10-12s range. The decay rates could be measured by detection of the decay products (high-energy photons or electron-positron pairs). The hyperfine-structure splitting of the dimuonic system and its decay rate are influenced by electronic vacuum polarization effects in the far timelike asymptotic region. This constitutes a previously unexplored kinematic regime. We evaluate next-to-leading-order radiative corrections to the decay rate of low-lying atomic states. We also obtain order a5Mm corrections to the hyperfine splitting of the 1S and 2S levels.

*Science > Physics > Nuclear and Particle Physics