The bound mu+ mu- system

Details The bound mu+ mu- system The bound mu+ mu- system

1997-06-18

arxiv.org/abs/physics/9706026v3

Phys.Rev. A56 (1997) 4483

Physics

Atomic Physics

10 figures (eps format) attached, Scheduled tentatively by PRA for Nov/Dec 1997

Scientific paper

10.1103/PhysRevA.56.4483

We consider the hyperfine structure, the atomic spectrum and the decay channels of the bound mu+ mu- system (dimuonium). The annihilation lifetimes of low-lying atomic states of the system lie in the nanosecond range 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 time-like 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 alpha^5 corrections to the hyperfine splitting of the 1S and 2S levels.

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