Time-dependent coupled-channel calculations of positronium-formation cross sections in positron-hydrogen collisions

Nobuhiro Yamanaka, Yasushi Kino

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate the usefulness of the time-dependent coupled channel (TDCC) method in theoretical studies of atomic rearrangement collisions. In the TDCC method, coupled-channel partial differential equations for scattering wave functions are solved time dependently. We develop the Hankel-interpolation method, which is used to transform wave functions from an initial coordinate to a final coordinate system. By using this method, reaction cross sections of rearrangement collisions can be directly extracted from solutions of TDCC equations. We calculate positronium-formation cross sections in positron-hydrogen collisions in which a considerable number of theoretical calculations and precise experiments have been made. The present results for positron energies of 6.8–35 eV are in excellent agreement with the recent experiment of Zhou et al. [Phys. Rev. A 55, 361 (1997)].

Original languageEnglish
Number of pages1
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume64
Issue number4
DOIs
Publication statusPublished - 2001 Jan 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Time-dependent coupled-channel calculations of positronium-formation cross sections in positron-hydrogen collisions'. Together they form a unique fingerprint.

Cite this