Eur. Phys. J. D 42, 85-91 (2007)
https://doi.org/10.1140/epjd/e2007-00032-x

Low-energy electron scattering from gaseous CS₂: angular distributions and effect of exchange forces

¹ Department of Chemistry, The University of Rome “La Sapienza” and CNISM, Piazzale A. Moro 5, 00185 Rome, Italy
² Laboratoire de Physico-Chimie Moléculaire, 351 cours de la Libération, 33405 Talence, France

Corresponding author: ^a fa.gianturco@caspur.it

Received: 23 November 2006
Published online: 16 February 2007

Abstract

Ab initio calculations are reported for the quantum scattering of electrons from CS₂ molecules in the gas phase and for energies which range from near threshold up to about 100 eV. Angular distributions are examined in detail and an extensive comparison is made with existing experiments and earlier calculations. The agreement found with the latter data is fairly good and results are further discussed in terms of a physical mechanism of “exchange level shifting" to explain the disappearance of a Π_u resonance suggested by earlier studies.