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

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Original languageEnglish
Article number261802
Pages (from-to)261802-1-261802-6
JournalPhysical Review Letters
Issue number26
Early online date27 Jun 2017
Accepted/In press23 May 2017
E-pub ahead of print27 Jun 2017
Published30 Jun 2017


King's Authors


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, which, in turn, imposes a lower limit of 11 TeV on the magnetic monopole mass in such a U(1)Y Born-Infeld theory.

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