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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/051/03-04/0413-0419

    • Keywords

       

      Eikonal; Planckian scattering

    • Abstract

       

      We discuss an approach to compute two-particle scattering amplitudes for spinless light particles colliding at Planckian centre-of-mass energies, with increasing momentum transfer away from the eikonal limit. The leading corrections to the eikonal amplitude, in our ‘external metric’ approach, are shown to be vanishingly small in the limit of the source particle mass going to zero. For massless charged particles, the electromagnetic and gravitational interactions decouple in the eikonal limit, but mix non-trivially for the leading order corrections.

    • Author Affiliations

       

      Saurya Das1 Parthasarathi Majumdar1

      1. The Institute of Mathematical Sciences, CIT Campus, Chennai - 600 113, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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