Atomic collision

Moseley J T 1984 Determination of ion molecular potential curves using photodissociative processes Applied Atomic Collision Physics ed H S W Massey, E W McDaniel and B Bederson (New York Academic)... 

McDaniei E W 1989 Atomic Collisions Electron and Photon Projectiles (New York Wiiey)... 

Fluestis D L 1982 Introduotion and overview Applied Atomic Collision Physics, Vol 3, Gas Lasersed FI SW Massey, E W MoDaniel, B Bederson and W L Nighan (New York Aoademio)... 

Elkowitz A B, McCreery J H and Wolken G 1976 Dynamics of atom-adsorbed atom collisions Hydrogen on tungsten Chem. Phys. 17 423... 

There are two basic physical phenomena which govern atomic collisions in the keV range. First, repulsive interatomic interactions, described by the laws of classical mechanics, control the scattering and recoiling trajectories. Second, electronic transition probabilities, described by the laws of quantum mechanics, control the ion-surface charge exchange process. 

Parilis E S ef a/1993 Atomic Collisions on Solids (New York North-Holland)... 

This chapter deals with qnantal and semiclassical theory of heavy-particle and electron-atom collisions. Basic and nsefnl fonnnlae for cross sections, rates and associated quantities are presented. A consistent description of the mathematics and vocabnlary of scattering is provided. Topics covered inclnde collisions, rate coefficients, qnantal transition rates and cross sections. Bom cross sections, qnantal potential scattering, collisions between identical particles, qnantal inelastic heavy-particle collisions, electron-atom inelastic collisions, semiclassical inelastic scattering and long-range interactions. 

B-e collisions, then the Bom approximation for atom-atom collisions is also recovered for general scattering amplitudes. For slow atoms B, is dominated by s-wave elastic scattermg so thaty g = -a and cr g = 4ti... 

A) EXAMPLES ATOMIC COLLISIONS WITH IDENTICAL NUCLEI... 

Bransden B H and McDowell M R C 1992 Charge Exohange and the Theory of Ion-Atom Collisions (Oxford Clarendon)... 

McCarthy I E and Weigold E 1995 Electron-Atom Collisions (Cambridge Cambridge University Press)... 

Nikitin E E and UmanskiT S Ya 1984 Theory of Slow Atomic Collisions (Ber ir Springer)... 

McDaniel E W and Mansky E J 1994 Guide to bibliographies, books, reviews and compendia of data on atomic collisions Advances in Atomic and Molecular Physics vol 33, ed B Bederson and FI Walther p 389... 

McDaniel E W and McDowell M R C (eds) 1969 Case Studies in Atomic Collision Physics (Amsterdam North-Flolland) vol 1... 

Suominen K-A 1996 Theories for cold atomic collisions in light fields J.Phys.B At.Mol.Opt.Phys. 29 5981-6007... 

Flasted J B 964 Physics of Atomic Collisions (London Butterworth)... 

N. F. Mott and H. S. W. Massey, The Theory of Atomic Collisions, Oxford University Press, London, 1965. 

Pechukas, P. Time-dependent semiclassical scattering theory. II Atomic collisions. Phys. Rev. 181 (1969) 174-185. 

Lindholm, E., Second International Conference on the Physics of Electronic and Atomic Collisions, p. 177, W. A. Benjamin, New York, 1961. 

An alternative to the traditional approach is to generate the electronic states as needed during the dynamics. This has been done for atomic collisions, where detailed calculations and comparisons with experimental results are possi-ble.(4-8) General treatments of the coupling of electronic and nuclear motions in molecular systems can be done in a variety of formulations. In particular, Ohrn, Deumens and collaborators have implemented a general variational treatment in... 

To properly describe electronic rearrangement and its dependence on both nuclear positions and velocities, it is necessary to develop a time-dependent theory of the electronic dynamics in molecular systems. A very useful approximation in this regard is the time-dependent Hartree-Fock approximation (34). Its combination with the eikonal treatment has been called the Eik/TDHF approximation, and has been implemented for ion-atom collisions.(21, 35-37) Approximations can be systematically developed from time-dependent variational principles.(38-41) These can be stated for wavefunctions and lead to differential equations for time-dependent parameters present in trial wavefunctions. 

Nikitin, E. E. Umanskii, S. Y. Theory of Slow Atomic Collisions Springer-Verlag Berlin, 1984. 

Bransden, B. H. McDowell, M. R. C. Charge Exchange and the Theory of Ion-Atom Collisions Clarendon Oxford, England, 1992. 

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