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Title: Low-energy positron scattering from gas-phase tetrahydrofuran: A quantum treatment of the dynamics and a comparison with experiments

In this paper we report new quantum calculations of the dynamics for low-energy positrons interacting with gaseous molecules of tetrahydrofuran. The new quantum scattering cross sections are differential and integral cross sections at collision energies between 1.0 and 25.0 eV and include a careful treatment of the additional effects on the scattering process brought about by the permanent dipole moment of the target molecule. The present results are compared with an extensive range of measured data, both for the angular distributions and for the elastic integral cross sections and agree remarkably well with all findings. The new calculated quantities reported here also show the importance of correcting the experimental integral cross sections for the angular discrimination in the forward direction.
Authors:
 [1] ;  [2]
  1. Mulliken Center for Theoretical Chemistry, University of Bonn, Beringstr. 4-6, 53115 Bonn (Germany)
  2. Department of Chemistry, The University of Rome Sapienza, Piazzale A. Moro 5, 00185 Rome (Italy)
Publication Date:
OSTI Identifier:
22251337
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 139; Journal Issue: 20; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANGULAR DISTRIBUTION; COLLISIONS; DIPOLE MOMENTS; INTEGRAL CROSS SECTIONS; POSITRONS; SCATTERING; TETRAHYDROFURAN