Excitation of autoionizing states of helium by proton and antiproton impact

被引:22
|
作者
Godunov, AL
McGuire, JH
Schipakov, VA
机构
[1] TULANE UNIV,DEPT PHYS,NEW ORLEANS,LA 70118
[2] TROITSK INST INNOVAT & FUS RES,TROITSK 142092,MOSCOW REGION,RUSSIA
关键词
D O I
10.1088/0953-4075/30/14/014
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A method for evaluating the excitation by particles of charge Z(p) of autoionizing states of helium is presented which includes interference with degenerate single ionization continuum states both before and after excitation. The decay into the final continuum state may be influenced by Coulomb interaction with the projectile in the final state. These effects influence the Z(p)(3) terms which may be observed experimentally. Calculations using this method are presented and compared with other calculations and experimental data.
引用
收藏
页码:3227 / 3245
页数:19
相关论文
共 50 条
  • [1] Excitation of autoionizing states of helium by proton and antiproton impact
    Godunov, A.L.
    McGuire, J.H.
    Schipakov, V.A.
    Journal of Physics B: Atomic, Molecular and Optical Physics, 1999, 30 (14): : 3227 - 3245
  • [2] Excitation of Helium by Proton and Antiproton Impact
    Balint, Zsuzsanna
    Borbely, Sandor
    Nagy, Ladislau
    ATOMS, 2024, 12 (11)
  • [3] Excitation of autoionizing states of helium by 100 keV proton impact: theory and experiment
    Godunov, AL
    Schipakov, VA
    Moretto-Capelle, P
    Bordenave-Montesquieu, D
    Benhenni, M
    Bordenave-Montesquieu, A
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1997, 30 (23) : 5451 - 5477
  • [4] Excitation of autoionizing states of helium by 100 keV proton impact: II. Excitation cross sections and mechanisms of excitation
    Godunov, AL
    Ivanov, PB
    Schipakov, VA
    Moretto-Capelle, P
    Bordenave-Montesquieu, D
    Bordenave-Montesquieu, A
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2000, 33 (05) : 971 - 999
  • [5] Differential cross sections for double excitation of the autoionizing states of helium by 100-150 keV proton impact
    Godunov, AL
    Ivanov, PB
    Schipakov, VA
    Schulz, M
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2002, 35 (11) : 2477 - 2492
  • [6] IONIZATION OF HELIUM BY ANTIPROTON AND PROTON IMPACT
    FAINSTEIN, PD
    PONCE, VH
    RIVAROLA, RD
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1988, 21 (17) : 2989 - 2998
  • [7] EXCITATION OF 1P STATES IN HELIUM BY PROTON IMPACT
    MATHUR, KC
    RUDGE, MRH
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1973, 6 (12) : 2555 - 2563
  • [8] EXCITATION OF HELIUM TO EXCITED ION STATES BY ELECTRON AND PROTON IMPACT
    MOUSSA, HRM
    DEHEER, FJ
    PHYSICA, 1967, 36 (04): : 646 - &
  • [9] ON THE ROLE OF AUTOIONIZING AND AUTODETACHING STATES IN THE EXCITATION OF METASTABLE LEVELS IN THE AUTOIONIZING ENERGY REGION - HELIUM
    SNEGURSKY, AV
    REMETA, EY
    ZAVILOPULO, AN
    SHPENIK, OB
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1994, 27 (08) : 1589 - 1597
  • [10] EXCITATION OF HELIUM BY PROTON IMPACT
    TRIPATHI, AN
    MATHUR, KC
    JOSHI, SK
    PHYSICAL REVIEW A, 1971, 3 (05): : 1666 - &