Thermal corrections for positronium

Abstract

Thermal corrections, including relativistic effects, for the positronium atom are discussed. The theoretical description of thermal corrections is carried out within the framework of relativistic quantum electrodynamics. As a result, thermal corrections to atomic energy levels with a fine and hyperfine structure and to the probabilities of annihilation of a positronium atom placed in a thermal environment (blackbody radiation) are taken into account. Numerical results are discussed throughout the paper in view of modern experiments and theoretical searches for verification of fundamental interactions.

10 pages, 2 figures, 2 tables

References in corpus (6)

• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
• Multipolar theory of black-body radiation shift of atomic energy levels and its implications for optical lattice clocks
• Complete ${\alpha }^{7}m$ Lamb shift of helium triplet states
• QED calculation of ionization energies of $1snd$ states in helium
• Relativistic corrections to the thermal interaction of bound particles