Feynman diagram approach to atomic collisions

Mishra, Babaji Charan ; Pradhan, Trilochan (1980) Feynman diagram approach to atomic collisions Pramana - Journal of Physics, 15 (3). pp. 291-307. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/j_archive/pramana/15/3/291-30...

Related URL: http://dx.doi.org/10.1007/BF02847225


A quantum field theoretic formulation of atomic collision phenomena involving non-relativistic free and bound systems is developed and a calculational procedure in terms of Feynman diagrams is prescribed. Matrix elements of several atomic collision processes have been calculated. In most cases standard quantum mechanical results are reproduced. But in some cases new terms appear in the scattering matrix whose contribution though negligibly small in the low energy region, become important at higher energies.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Non-Relativistic Field Theory; Feynman Rules; Charge Form-Factor of an Atom; Kramers-Heisenberg Formula; Van Der Waals Interaction
ID Code:33344
Deposited On:30 Mar 2011 10:13
Last Modified:17 May 2016 16:12

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