Light-by-Light Scattering Constraint on Born-Infeld Theory.

  title={Light-by-Light Scattering Constraint on Born-Infeld Theory.},
  author={John Ellis and Nick E. Mavromatos and Tevong You},
  journal={Physical review letters},
  volume={118 26},
The recent measurement by ATLAS of light-by-light scattering in LHC Pb-Pb collisions is the first direct evidence for this basic process. We find that it excludes a range of the mass scale of a nonlinear Born-Infeld extension of QED that is ≲100  GeV, a much stronger constraint than those derived previously. In the case of a Born-Infeld extension of the standard model in which the U(1)_{Y} hypercharge gauge symmetry is realized nonlinearly, the limit on the corresponding mass reach is ∼90  GeV… 

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