134 citations · 135 across the 7 of their papers we have counts for
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hep-ph2026
Bound-state decay of a charged scalar particle in an external Coulomb field
Andrzej Czarnecki, Artem O. Davydov
We determine the decay rate of a scalar particle bound to a light nucleus, numerically and analytically. As a model system, we consider a negatively charged kaon in the ground…
hep-ph2026
Radiative Corrections in Bound States: Recent Results
Andrzej Czarnecki, Artem O. Davydov
Two recent studies of radiative corrections to bound state properties are discussed. The change of the decay rate of a muon bound to a light nucleus has been calculated for several…
hep-ph2026
Parapositronium decay into three photons and implications for the neutral pion
Andrzej Czarnecki, Divyesh Dagia, Ting Gao +1
We complete the determination of the parapositronium decay into three photons by evaluating amplitudes mediated by the boson. We show that, contrary to the expectation that the…