9 citations · 12 across the 5 of their papers we have counts for
5 papers
Diagrammatic Monte Carlo for positron-molecule many-body theory
T. A. Scott, S. K. Gregg, D. G. Green
A diagrammatic Monte Carlo evaluation of the ladder series contributions to the correlation potential (self energy) of a positron in the field of a molecule is presented. The @…
Many-body theory predictions of positron binding energies in five-membered heterocycles involving N, O, S and NH substituents
S. K. Gregg, D. G. Green
Positron binding energies and Dyson orbitals for five-membered heterocycles with N, O, S and NH substituents are predicted \emph{ab initio} via many-body theory. The positron-molec…
Many-body theory and Gaussian-basis implementation of positron annihilation -ray spectra on polyatomic molecules
S. K. Gregg, J. P. Cassidy, A. R. Swann +3
Doppler-broadened -ray spectra for positron annihilation on molecules are calculated using many-body theory. By employing Gaussian bases for the electron and positron wavefuncti…
Many-body theory calculations of positron binding to parabenzoquinone
S. K. Gregg, J. Hofierka, B. Cunningham +1
Positron binding in parabenzoquinone is studied using \textit{ab initio} many-body theory. The effects of electron-positron correlations including polarization, virtual positronium…
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…