Formation of quasi-free and bubble positronium states in water and aqueous solutions
arXiv:1312.0168 · doi:10.12693/APhysPolA.125.770
Abstract
It is shown that in aqueous solutions a positronium atom is first formed in the quasi-free state, and, after 50-100 ps, becomes localized in a nanobubble. Analysis of the annihilation spectra of NaNO3 aqueous solutions shows that the hydrated electron is not involved in the positronium (Ps) formation.