• The fifth interaction: universal long range force between spins

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      https://www.ias.ac.in/article/fulltext/pram/024/01-02/0077-0094

    • Keywords

       

      Fifth interaction; axial photon; local Lorentz group; divergences; stability of the electron; asymptotic freedom; hyperfine anomaly; phase of the wavefunction

    • Abstract

       

      In this paper we present a review of our investigations on universal long range force between spins mediated by a massless axial vector gauge field which we name as “axial photon”. The invariance of the Lagrangian field theory of particles, possessing spin degrees of freedom, under local Lorentz transformations, necessitates the introduction of such an axial vector gauge field which interacts with spin current of the particles. Classical as well as quantum dynamics of electrons interacting with photon and axial photon are worked out. The new interaction is found to be asymptotically free. It is shown thatqed can be made finite if the coupling strengths of electron to photon and axial photon can be made equal. Experimental consequences of the existence of axial photon are discussed and the strength of the interaction is estimated by comparing predictions of the theory with experiments.

    • Author Affiliations

       

      T Pradhan1 R P Malik1 P C Naik1 2

      1. Institute of Physics, Sachivalaya Marg, Bhubaneswar - 751 005, India
      2. Department of Physics, S.C.S. College, Puri - 752001, India
    • Dates

       
  • Pramana – Journal of Physics | News

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