Vibrational excitation of the H2X 1Σg+ state via electron-impact excitation and radiative cascade

被引：10
作者：
Scarlett, Liam H. [1 ,2 ]
Tapley, Jonathan K. [1 ,2 ]
Savage, Jeremy S. [1 ,2 ]
Fursa, Dmitry, V [1 ,2 ]
Zammit, Mark C. [3 ]
Bray, Igor [1 ,2 ]
机构：
[1] Curtin Univ, Curtin Inst Computat, Perth, WA 6102, Australia
[2] Curtin Univ, Dept Phys & Astron, Perth, WA 6102, Australia
[3] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA
来源：
PLASMA SOURCES SCIENCE & TECHNOLOGY | 2019年 / 28卷 / 02期
关键词：
hydrogen molecule; electron-impact excitation; molecular collisions; vibrational dynamics; radiative decay; CROSS-SECTIONS; TRANSITION MOMENTS; HYDROGEN; H-2; DISSOCIATION; MOLECULE; PROBABILITIES; CONTINUUM; ENERGIES; (1)PI(U);
D O I：
10.1088/1361-6595/ab005b
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Vibrational excitations of H-2(X (1)Sigma(+)(g), nu(i) = 0 - 14) are investigated via the electron-impact excitation of the B E-1(u)+, C (1)Pi(u), B' E-1(u)+, D (1)Pi(u,) and E, F (1)Sigma(+)(g) states followed by radiative cascade to the vibrational bound and free (continuum) levels of the electronic ground state. The adiabatic-nuclei convergent close-coupling formalism is utilized to calculate cross sections from threshold to 500 eV. Results are in qualitative agreement with previous calculations, however absolute values differ significantly.
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页数：11
相关论文
共 45 条
  • [1] The emission continuum of electron-excited molecular hydrogen
    Abgrall, H
    Roueff, E
    Liu, XM
    Shemansky, DE
    [J]. ASTROPHYSICAL JOURNAL, 1997, 481 (01) : 557 - 566
  • [2] Total transition probability and spontaneous radiative dissociation of B, C, B′ and D states of molecular hydrogen
    Abgrall, H
    Roueff, E
    Drira, I
    [J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 2000, 141 (02): : 297 - 300
  • [3] THE CHEMISTRY OF VIBRATIONALLY EXCITED H2 IN THE INTERSTELLAR MEDIUM
    Agundez, M.
    Goicoechea, J. R.
    Cernicharo, J.
    Faure, A.
    Roueff, E.
    [J]. ASTROPHYSICAL JOURNAL, 2010, 713 (01) : 662 - 670
  • [4] Allison A. C., 1970, Atomic Data, V1, P289
  • [5] Non-Franck-Condon electron-impact dissociative-excitation cross sections of molecular hydrogen producing H(1s)+H(2l) through X1Σg+(υ=0)→{B1Σu+, B′1Σu+, C1Πu}
    Borges, I
    Jalbert, G
    Bielschowsky, CE
    [J]. PHYSICAL REVIEW A, 1998, 57 (02): : 1025 - 1032
  • [6] The formation of the first stars and galaxies
    Bromm, Volker
    Yoshida, Naoki
    Hernquist, Lars
    McKee, Christopher F.
    [J]. NATURE, 2009, 459 (7243) : 49 - 54
  • [7] CACCIATORE M, 1990, AIP CONF PROC, V210, P74
  • [8] VIBRATIONAL-EXCITATION OF H2(X1-SIGMA-G(+), UPSILON) D2(X1-SIGMA-G(+), UPSILON) THROUGH EXCITATION OF ELECTRONICALLY EXCITED SINGLET-STATES AND RADIATIVE CASCADE
    CELIBERTO, R
    CAPITELLI, M
    LAMANNA, UT
    [J]. CHEMICAL PHYSICS, 1994, 183 (01) : 101 - 106
  • [9] Electron-impact vibrational excitation of vibrationally excited H2 molecules involving the resonant 2Σg+ Rydberg-excited electronic state
    Celiberto, R.
    Janev, R. K.
    Laporta, V.
    Tennyson, J.
    Wadehra, J. M.
    [J]. PHYSICAL REVIEW A, 2013, 88 (06):
  • [10] DEPENDENCE OF ELECTRON-IMPACT DISSOCIATIVE EXCITATION CROSS-SECTIONS ON THE INITIAL VIBRATIONAL QUANTUM NUMBER IN H-2 AND D-2 MOLECULES - X-1-SIGMA-G(+)-]B-1-SIGMA-U(+) AND X-1-SIGMA-G(+)-]C-1-PI(U) TRANSITIONS
    CELIBERTO, R
    LAMANNA, UT
    CAPITELLI, M
    [J]. PHYSICAL REVIEW A, 1994, 50 (06): : 4778 - 4785
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