(1) Department of Applied Mathematics and Theoretical Physics, Queen’s University, Belfast BT7 1NN, Northern Ireland, UK
Abstract:
We analyse the process of rapid positron annihilation in large polyatomic molecules due to positron capture into vibrational
Feshbach resonances. Resonant annihilation occurs in molecules which can bind positrons, and we analyse positron binding to
alkanes using zero-range potentials. Related questions of spectra of annihilation gamma quanta and molecular fragmentation
following annihilation, are discussed briefly.