Quenching of rotationally excited CO in cold and ultracold collisions with H, He and H2

Benhui Yang, Hemamali Perera, N. Balakrishnan, R. C. Forrey, P. C. Stancil

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The study of molecular inelastic collision processes at cold and ultracold temperatures is of considerable interest as schemes are currently being developed to efficiently cool and trap neutral polar molecules. In this work, quantum-mechanical scattering calculations are presented for the quenching of rotationally excited CO due to collisions with H, He and H2 for collision energies between 10-5 and 10 cm-1. The calculations were performed using the close-coupling approach and the coupled-states approximation. Cross sections for the quenching of the j ≤ 1-10, 20, 30 and 40 levels of CO are presented and mechanism and trends of energy transfer in these systems are discussed.

Original languageEnglish (US)
Article numberS29
Pages (from-to)S1229-S1239
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume39
Issue number19
DOIs
StatePublished - Oct 14 2006

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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