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    • Feynman diagram method for atomic collisions

      T Pradhan Avinash Khare

      Quantum Mechanics Volume 6 Issue 5 May 1976 pp 312-322

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/006/05/0312-0322

    • Keywords

       

      Electron exchange; ion exchange; vertex function; collisional ionisation; photo-effect charge transfer

    • Abstract

       

      Feynman diagram method of treating atomic collision problems in perturbation theory is presented and matrix elements are calculated for a number of processes. The result for the resonant charge transfer in hydrogen is identical to the well known OBK value. However, in processes like collisional ionisation, the results are different from those obtained by conventional methods.

    • Author Affiliations

       

      T Pradhan1 2 Avinash Khare1

      1. Institute of Physics, Bhubaneswar - 751007
      2. Saha Institute of Nuclear Physics, Calcutta - 700009

    • Dates

       
      Published
      May 1976
      Manuscript received
      1 December 1975
      Manuscript revised
      5 January 1976

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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