Bound μ+μ- system
- 1. Institut fuer Theoretische Physik, Technische Universitaet Dresden, 01062 Dresden (Germany)
- 2. Pulkovo Observatory, 196140 St. Petersburg (Russia)
- 3. D. I. Mendeleev Institute for Metrology, 198005 St. Petersburg, Russia and Max-Planck-Institut fuer Physik Komplexer Systeme, Bayreuther Strasse 40, 01069 Dresden (Germany)
Description
We consider the hyperfine structure, the atomic spectrum, and the decay channels of the bound μ+μ- system (dimuonium). The annihilation lifetimes of low-lying atomic states of the system lie in the 10-12 s 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 α5mμ corrections to the hyperfine splitting of the 1S and 2S levels. copyright 1997 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 56
- Journal Issue
- 6
- Journal Page Range
- p. 4483-4495.
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29020745
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ANNIHILATION; DECAY; ELECTRONIC STRUCTURE; HYPERFINE STRUCTURE; LIFETIME; MUONIUM; RADIATIVE CORRECTIONS; SPECTRA
- Descriptors DEC
- CORRECTIONS; INTERACTIONS; PARTICLE INTERACTIONS