Application of the zero-range potential model to positron annihilation on molecules

Gleb Gribakin, C.M.R. Lee

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

In this paper we use a zero-range potential (ZRP) method to model positron interaction with molecules. This allows us to investigate the e?ect of molecular vibrations on positron–molecule annihilation using the van der Waals dimer Kr2 as an example. We also use the ZRP to explore positron binding to polyatomics and examine the dependence of the binding energy on the size of the molecule for alkanes. We ?nd that a second bound state appears for a molecule with ten carbons, similar to recent experimental evidence for such a state emerging in alkanes with twelve carbons.
Original languageEnglish
Pages (from-to)31-37
Number of pages7
JournalNuclear Instruments & Methods in Physics Research - Section B: Beam Interactions with Materials and Atoms
Volume247
Issue number1 SPEC. ISS.
Publication statusPublished - Jun 2006

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

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