Abstract
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.
Highlights
Theoretical Particle Physics and Cosmology Group, Physics Department, King’s College London, London WC2R 2LS, United Kingdom and Theoretical Physics Department, CERN, CH-1211 Geneva 23, Switzerland
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 quantum electrodynamics (QED) that is ≲100 GeV, a much stronger constraint than those derived previously
Summary
Theoretical Particle Physics and Cosmology Group, Physics Department, King’s College London, London WC2R 2LS, United Kingdom and Theoretical Physics Department, CERN, CH-1211 Geneva 23, Switzerland. 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.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
