Predicting differential cross sections of electron scattering from polyatomic molecules

被引：7

作者：

Sun, Weiguo ^{[1
,2
]}

Wang, Qi ^{[2
]}

Zhang, Yi ^{[3
]}

Li, Huidong ^{[1
]}

Feng, Hao ^{[1
]}

Fan, Qunchao ^{[1
]}

机构：

[1] Xihua Univ, Res Ctr Adv Computat, Sch Sci, Chengdu 610039, Sichuan, Peoples R China

[2] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Sichuan, Peoples R China

[3] Sichuan Univ, Sch Phys, Chengdu 610065, Sichuan, Peoples R China

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2015年 / 48卷 / 12期

基金：

中国国家自然科学基金;

关键词：

cross section; molecular scattering; polyatomic molecule; SCHWINGER VARIATIONAL PRINCIPLE; R-MATRIX THEORY; VIBRATIONAL-EXCITATION; METHANE SCATTERING; ELASTIC-SCATTERING; WATER-VAPOR; AB-INITIO; COLLISIONS; IMPACT;

D O I：

10.1088/0953-4075/48/12/125201

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based on a difference converging method (DCM) and the general differential cross section (DCS) expression, an analytical formula and a converging protocol used to predict accurate values of experimentally unknown DCSs are proposed. The accurate DCSs, integral cross sections and momentum transfer cross sections of electron scattering from N-2, H2O, CH4, and CF3I molecules are studied using the new formula and a set of experimental DCSs. The calculated results show that not only all known experimental DCSs are excellently reproduced but also the unknown ones are correctly predicted. This study suggests a method as a reliable and economical theoretical alternative to obtain unknown DCSs of electron scattering from a polyatomic molecule.

引用

页数：10

共 52 条

[1] Arfken G, 1985, MATH METHODS PHYS
[2] Elastic scattering of low-energy electrons by CF3Cl, CF3Br and CF3I
Bettega, MHF
Natalense, APP
Lima, MAP
Ferreira, LG
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2003, 36 (06) : 1263 - 1272
[3] TRANSFERABILITY OF LOCAL-DENSITY NORM-CONSERVING PSEUDOPOTENTIALS TO ELECTRON-MOLECULE-COLLISION CALCULATIONS
BETTEGA, MHF
FERREIRA, LG
LIMA, MAP
[J]. PHYSICAL REVIEW A, 1993, 47 (02): : 1111 - 1118
[4] SYMMETRIC EULER-ANGLE DECOMPOSITION OF 2-ELECTRON FIXED-NUCLEUS PROBLEM
BHATIA, AK
TEMKIN, A
[J]. REVIEWS OF MODERN PHYSICS, 1964, 36 (04) : 1050 - &
[5] R-matrix calculations of low-energy electron collisions with methane
Brigg, Will J.
Tennyson, Jonathan
Plummer, Martin
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2014, 47 (18)
[6] Electron-molecule scattering cross-sections. I. Experimental techniques and data for diatomic molecules
Brunger, MJ
Buckman, SJ
[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2002, 357 (3-5): : 215 - 458
[7] R-MATRIX THEORY OF ELECTRON-MOLECULE SCATTERING
BURKE, PG
MACKEY, I
SHIMAMURA, I
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1977, 10 (12) : 2497 - 2512
[8] Measurements of elastic electron scattering by water vapour extended to backward angles
Cho, H
Park, YS
Tanaka, H
Buckman, SJ
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2004, 37 (03) : 625 - 634
[9] Elastic electron scattering from CF3H and CF3I
Cho, H.
Song, M. Y.
Yoon, J. S.
Hoshino, M.
Tanaka, H.
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2010, 43 (13)
[10] Studies on vibrational excitation differential cross-sections of low-energy electron scattering from N2 molecule
Dai, W.
Sun, W. G.
Feng, H.
Shen, L.
[J]. EUROPEAN PHYSICAL JOURNAL D, 2006, 39 (03) : 385 - 389

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