What is recorded here?
Adkins, Gomprecht, Li and Shinn obtained analytic pure-recoil energy corrections at order (Zα)^6 for Coulombic S states of two spin-1/2 particles, retaining the full dependence on their mass ratio. Their calculation combines nonrelativistic-QED contributions with relativistic matching integrals expressed through harmonic polylogarithms, and gives both spin-averaged and hyperfine corrections. The result connects unequal-mass systems such as muonium to the equal-mass positronium limit and identifies corrections to earlier mass-ratio expansions.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The result is exact in the mass ratio within the specified perturbative order and point-particle model. It is not an all-orders atomic spectrum, a calculation of every radiative or annihilation contribution, or a treatment of proton structure. States with nonzero orbital angular momentum are addressed through other cited work. The authors report checks against earlier numerical and equal-mass results; the complete integral reduction and numerical implementation have not been independently reproduced here. Extension to order (Zα)^7 is proposed rather than completed.
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People and systems
Gregory S. Adkins; Jonathan Gomprecht; Yanxi Li; Evan Shinn
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
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English catalogue narrative
Analytic arbitrary-mass pure-recoil corrections for two-fermion atomic S states
Adkins, Gomprecht, Li and Shinn obtained analytic pure-recoil energy corrections at order (Zα)^6 for Coulombic S states of two spin-1/2 particles, retaining the full dependence on their mass ratio. Their calculation combines nonrelativistic-QED contributions with relativistic matching integrals expressed through harmonic polylogarithms, and gives both spin-averaged and hyperfine corrections. The result connects unequal-mass systems such as muonium to the equal-mass positronium limit and identifies corrections to earlier mass-ratio expansions.
Scientific scope
The result is exact in the mass ratio within the specified perturbative order and point-particle model. It is not an all-orders atomic spectrum, a calculation of every radiative or annihilation contribution, or a treatment of proton structure. States with nonzero orbital angular momentum are addressed through other cited work. The authors report checks against earlier numerical and equal-mass results; the complete integral reduction and numerical implementation have not been independently reproduced here. Extension to order (Zα)^7 is proposed rather than completed.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Gregory S. Adkins; Jonathan Gomprecht; Yanxi Li; Evan Shinn
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.