Simultaneous transfer ionization in a positron-helium atom system

被引：0
|
作者：
Nath, B. [1 ,2 ]
Sinha, C. [1 ]
机构：
[1] Department of Theoretical Physics, Indian Assoc. the Cultiv. of Sci., Jadavpur, Calcutta 700032, India
[2] Kumar Ashutosh Boys Institution 10/1, Dum Dum Road, Calcutta 700030, India
来源：
Physical Review A - Atomic, Molecular, and Optical Physics | 2000年 / 61卷 / 06期
关键词：
Binding energy - Electron scattering - Electron transitions - Electron transport properties - Electron traps - Ground state - Helium - Ionization - Numerical analysis - Positrons;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A study was carried out, focusing on a two-electron transition process in an e+-He atom system where two competing processes occur simultaneously: the formation of Ps and the ejection of another electron. The correlation effect in both the channels was accounted. Results of this study corroborate the experimental findings that in the double ionization (DI), the Ps channel is strongly suppressed in the second ore gap region for some noble gases where TI is the only open channel for the DI process of the target atom.
引用
收藏
页码：062705 / 062701
相关论文
共 50 条
  • [21] POSITRON-HELIUM SCATTERING INCLUDING POLARIZATION EFFECTS
    MANDAL, P
    BASU, D
    GHOSH, AS
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1976, 9 (15) : 2633 - 2642
  • [22] Annihilation in low energy positron-helium scattering
    Humberston, JW
    Van Reeth, P
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1998, 143 (1-2): : 127 - 134
  • [23] POSITRON-HELIUM SCATTERING IN THE CLOSE-COUPLING APPROACH
    KAHALI, M
    ADHIKARI, SK
    BASU, D
    GHOSH, AS
    CHEMICAL PHYSICS LETTERS, 1995, 239 (4-6) : 344 - 348
  • [24] THEORY OF LOW-ENERGY POSITRON-HELIUM SCATTERING
    DRACHMAN, RJ
    PHYSICAL REVIEW, 1966, 144 (01): : 25 - &
  • [25] S-wave resonances in the positron-helium scattering
    Ren, Zhenzhong
    Han, Huili
    Shi, Tingyun
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2011, 44 (06)
  • [26] ACCURATE CALCULATIONS OF POSITRON-HELIUM ELASTIC-SCATTERING
    HUMBERST.JW
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1973, 18 (04): : 709 - 709
  • [27] Have positron-helium scattering resonances been observed?
    Antonio Zecca
    The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics, 2006, 37 : 151 - 152
  • [28] VARIATIONAL CALCULATION OF POSITRON-HELIUM BOUND-STATE
    MOUSSA, AH
    RADI, HMA
    PHYSICA, 1973, 69 (02): : 587 - 597
  • [29] RECENT STUDIES OF SIMULTANEOUS IONIZATION AND CHARGE TRANSFER IN HELIUM ION-ATOM COLLISIONS.
    DuBois, R.D.
    1600, (B24-25):
  • [30] Nonradiative formation of the positron-helium triplet bound state
    Di Rienzi, Joseph
    Drachman, Richard J.
    PHYSICAL REVIEW A, 2007, 75 (02):
12345