Elastic scattering of low-energy electrons by tetrahydropyran

29th International Conference on Photonic, Electronic, and Atomic Collisions

Barbosa, Alessandra Souza^1,2 ; Bettega, Márcio H.F.^1

Departamento de Física, Universidade Federal Do Paraná, Caixa Postal 19044, Curitiba

81531-990, Brazil^1

Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, FCT Universidade Nova de Lisboa, Caparica

2829-516, Portugal^2

关键词: 1 ,4-Dioxane;    Differential cross section;    Geometrical structure;    Low energy electrons;    Pseudopotentials;    Schwinger multichannel method;    Static-exchange approximation;    Tetrahydropyran;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/1/012016/pdf
DOI  :  10.1088/1742-6596/635/1/012016

来源: IOP

【 摘 要 】

In this work we report calculated cross sections for elastic scattering of low-energy electrons by tetrahydropyran (C5H10O) molecule. We employed the Schwinger multichannel method (SMC) [5] implemented with pseudopotentials (SMCPP) in the static-exchange (SE) approximation for energies up to 30 eV. We compare our calculated cross sections with previous results obtained for cyclohexane and 1,4-dioxane molecules, since their geometrical structures are similar. We found that the differential cross sections obtained in the SE approximation present similar behavior for the three molecules except at lower angles, where the dipole moment present in tetrahydropyran increases abruptly the differential cross sections.