Bulletin of the American Physical Society
55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024; Fort Worth, Texas
Session R04: Antimatter and Electron Collisions
2:00 PM–3:48 PM,
Thursday, June 6, 2024
Room: 201BC
Chair: Sandra Ward Quintanilla, University of North Texas
Abstract: R04.00003 : Computing more accurate scattering cross-sections for H2++e- in the gerade symmetry*
3:00 PM–3:12 PM
Presenter:
David Hvizdos
(Purdue University)
Authors:
David Hvizdos
(Purdue University)
Chris H Greene
(Purdue University)
Christian Jungen
(Université Paris-Saclay, Orsay)
Mourad Telmini
(University of Tunis El Manar)
Roman Curik
(J. Heyrovsky Institute of Physical Chemistry)
We present our ongoing effort to increase the accuracy and reliability of MQDT methods by tackling the case of gerade H2+ electron scattering with multiple enhanced approaches such as an ab-initio R-matrix calculation (Phys. Rev. A 98, 062706 (2018)), an energy-dependent rovibrational frame transformation employing ECS states (Phys. Rev. A 101, 012709 (2020)) and a reformulated version of the "Unified quantum-defect theory of molecular ionization and dissociation" treatment of Ross and Jungen (Phys. Rev. A 55, R2503 (1997)). We set up a two dimensional model potential for the eletron-molecule interaction and study the efficacy and validity of these methods.
*U.S. Department of Energy, Office of Science, Award No. DE-SC0010545.
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