A model for a light graviphoton

  • R. Barbieri
  • S. Cecotti


We describe an explicitN=2 supergravity model where an arbitrarily light vector boson (“graviphoton”) is coupled, with typical gravitational strength to matter hypermultiplets, possessing unbroken gauge interactions as well. We discuss: i) the mass and the couplings of the graviphoton; ii) the consistency of its coupling to a mass generated by the Higgs mechanism; iii) the actual composition of the graviphoton in terms of the original vector fields of the Lagrangian (e.g. its mixing with the photon).


Field Theory Elementary Particle Quantum Field Theory Vector Field Particle Acceleration 
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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • R. Barbieri
    • 1
  • S. Cecotti
    • 1
  1. 1.Dipartimento di FisicaUniversita'di Pisa and I.N.F.N.PisaItaly

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