267 citations · 373 across the 6 of their papers we have counts for
6 papers
Positron annihilation and binding in aromatic and other ring molecules
E. Arthur-Baidoo, J. R. Danielson, C. M. Surko +6
Annihilation spectra are presented for aromatic and heterocyclic ring molecules resolved as a function of incident positron energy using a trap-based positron beam. Comparisons wit…
Effect of chlorination on positron binding to hydrocarbons: experiment and theory
A. R. Swann, G. F. Gribakin, J. R. Danielson +3
Measured and calculated positron binding energies are presented for a range of hydrocarbons with up to six carbon atoms (viz., methane, acetylene, ethylene, ethane, propane, butane…
Mode coupling and multiquantum vibrational excitations in Feshbach-resonant positron annihilation in molecules
G. F. Gribakin, J. F. Stanton, J. R. Danielson +2
The dominant mechanism of low-energy positron annihilation in polyatomic molecules is through positron capture in vibrational Feshbach resonances (VFR). In this paper we investigat…
Vibrational Feshbach Resonances Mediated by Nondipole Positron-Molecule Interactions
M. R. Natisin, J. R. Danielson, G. F. Gribakin +2
Measurements of energy-resolved positron-molecule annihilation show the existence of positron binding and vibrational Feshbach resonances. The existing theory describes this phenom…
Effect of positron-atom interactions on the annihilation gamma spectra of molecules
D. G. Green, S. Saha, F. Wang +2
Calculations of gamma spectra for positron annihilation on a selection of molecules, including methane and its fluoro-substitutes, ethane, propane, butane and benzene are presented…
Positron-molecule interactions: resonant attachment, annihilation, and bound states
G. F. Gribakin, J. A. Young, C. M. Surko
This article presents an overview of current understanding of the interaction of low-energy positrons with molecules with emphasis on resonances, positron attachment and annihilati…