2 papers
physics.atom-ph2026
Precision Positronium Spectroscopy as a Test of the Helium Ionization Energy Anomaly
J. Pérez-Ríos, D. B. Cassidy
Precise measurements of the metastable helium (1s)(2s) ionization energy have revealed a 9 discrepancy with QED theory that persists in isotopic measurements, suggestin…
physics.atom-ph2016
Formation of positron-atom bound states in collisions between Rydberg Ps and neutral atoms
A. R. Swann, D. B. Cassidy, A. Deller +1
Predicted twenty years ago, positron binding to neutral atoms has not yet been observed experimentally. A new scheme is proposed to detect positron-atom bound states by colliding R…