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Fragmentation Processes

Book Description

Revolutionary advances in experimental techniques and spectacular increases in computer power over recent years have enabled researchers to develop a much more profound understanding of the atomic few-body problem. One area of intense focus has been the study of fragmentation processes. Covering the latest research in the field, this edited text is the first to provide a focussed and systematic treatment of fragmentation processes, bringing together contributions from a range of leading experts. As well as tackling the more established electron-impact ionization processes, (e,2e), this book also guides the reader through topics such as molecular fragmentation, ion-atom collisions and multi-photon processes. Combining a broad range of topics with an equal mix of theoretical and experimental discussion, this is an invaluable text for graduate students and researchers in atomic collisions, laser physics and chemistry.

Table of Contents

  1. Cover
  2. Half Title
  3. Title
  4. Copyright
  5. Table of Contents
  6. List of contributors
  7. Preface
  8. 1   Direct and resonant double photoionization: from atoms to solids: LORENZO AVALDI AND GIOVANNI STEFANI
    1. 1.1 Introduction
    2. 1.2 Direct double photoionization
    3. 1.3 Indirect double photoionization
    4. 1.4 Conclusions
  9. 2   The application of propagating exterior complex scaling to atomic collisions: PHILIP L. BARTLETT AND ANDRIS T. STELBOVICS
    1. 2.1 Introduction
    2. 2.2 Introduction to exterior complex scaling
    3. 2.3 Application of ECS to electron–hydrogen scattering
    4. 2.4 Scattering in electron–hydrogen system
    5. 2.5 Exterior complex scaling for electron–helium scattering
    6. 2.6 Summary and outlook for the future
  10. 3   Fragmentation of molecular-ion beams in intense ultrashort laser pulses: ITZIK BEN-ITZHAK
    1. 3.1 Introduction
    2. 3.2 Experimental method
    3. 3.3 Benchmark molecules
    4. 3.4 Complex and/or unique molecular ions
    5. 3.5 Summary and outlook
  11. 4   Atoms with one and two active electrons in strong laser fields: I. A. IVANOV AND A. S. KHEIFETS
    1. 4.1 Introduction
    2. 4.2 Theoretical model
    3. 4.3 Two-photon double ionization of helium
    4. 4.4 DC-assisted double photoionization of He and H−
    5. 4.5 Strong-field ionization of lithium and hydrogen
    6. 4.6 High harmonics generation
    7. 4.7 Time delay in atomic photoionization
  12. 5   Experimental aspects of ionization studies by positron and positronium impact: G. LARICCHIA, D. A. COOKE, A. K ER AND S. J. BRAWLEY
    1. 5.1 Introduction
    2. 5.2 Integral cross sections for positron impact ionization
    3. 5.3 Differential cross sections for positron impact ionization
    4. 5.4 Positronium-induced fragmentation
    5. 5.5 Conclusions and outlook
  13. 6   (e,2e) spectroscopy using fragmentation processes: JULIAN LOWER, MASAKAZU YAMAZAKI AND MASAHIKO TAKAHASHI
    1. 6.1 Introduction
    2. 6.2 Background
    3. 6.3 Theory
    4. 6.4 Electron momentum spectroscopy results
    5. 6.5 Low-energy (e,2e) results
    6. 6.6 Conclusion
    7. 7   A coupled pseudostate approach to the calculation of ion–atom fragmentation processes: M. MCGOVERN, H. R. J. WALTERS AND COLM T. WHELAN
    8. 7.1 Introduction
    9. 7.2 Theory
    10. 7.3 Antiproton-induced ionization
  14. 8   Electron impact ionization using (e,2e) coincidence techniques from threshold to intermediate energies: ANDREW JAMES MURRAY
    1. 8.1 Introduction
    2. 8.2 Experimental methods and techniques
    3. 8.3 Theoretical models
    4. 8.4 Atomic targets
    5. 8.5 Molecular targets
    6. 8.6 Experiments from laser-aligned atoms
    7. 8.7 Future work and conclusions
  15. 9   (e,2e) processes on atomic inner shells: COLM T. WHELAN
    1. 9.1 (e,2e) processes – an overview
    2. 9.2 Non-relativistic theory
    3. 9.3 The distorted wave Born approximation
    4. 9.4 Inner-shell ionization of heavy metal targets at relativistic impact energies
    5. 9.5 General features of the cross section
    6. 9.6 Special features
  16. 10   Spin-resolved atomic (e,2e) processes: JULIAN LOWER AND COLM T. WHELAN
    1. 10.1 Introduction
    2. 10.2 Experimental considerations
    3. 10.3 Low-Z targets and low electron impact energies
    4. 10.4 High-Z targets and low electron impact energies
    5. 10.5 High-Z targets and high electron impact energies
    6. 10.6 Longitudinally polarized electrons
    7. 10.7 Conclusion
  17. Index