Frontiers in Atomic Physics—Introduction and Opening Remarks

  • Joseph Macek
Part of the NATO ASI Series book series (NSSB, volume 181)


Fragmentation, spectroscopy, and collisions represent three broad categories of atomic and molecular processes. We regard the formation of excited bound states in spectroscopic studies as fragmentations in which the fragments do not have enough energy to escape. Collisions are represented as the product of fragmentation reactions run in reverse in the initial state, and fragmentation reactions run in normal direction in the final state. The Jost functions form the mathematical framework for this picture. Issues that emerge naturally are the identification of appropriate reaction coordinates to describe the propagation of the system, the classification of the channels at large and small values of the reaction coordinate and the connection between the two regions.


Atomic Process Reaction Coordinate Fragmentation Reaction Outgoing Wave Quantum Beat 
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    U. Fano and A.R.P. Rau, Atomic Collisions and Spectra, (Academic Press, New York 1986), pp. 84–110.Google Scholar
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    Joseph Macek in Fundamental Processes in Energetic Atomic Collisions, Ed. by H.O. Lutz, J.S. Briggs and H. Kleinpoppen, (Plenum Publishing Co., New York 1983), pp. 39–67.Google Scholar
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    Roger G. Newton, Scattering Theory of Particles and Waves, (McGraw-Hill, New York 1966), p. 230.Google Scholar

Copyright information

© Plenum Press, New York 1988

Authors and Affiliations

  • Joseph Macek
    • 1
  1. 1.Department of Physics and AstronomyUniversity of NebraskaLincolnUSA

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