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Report number	CAVENDISH-HEP-17-04 ; DAMTP-2017-12 ; KCL-PH-TH-2017-11 ; CERN-TH-2017-062 ; arXiv:1703.08450
Title	Light-by-Light Scattering Constraint on Born-Infeld Theory
Related title	Light-by-Light Scattering Constraint on Born-Infeld Theory
Author(s)	Ellis, John (King's Coll. London ; CERN) ; Mavromatos, Nick E. (King's Coll. London) ; You, Tevong (Cambridge U., DAMTP)
Publication	2017-06-27
Imprint	2017-03-24
Number of pages	6
Note	11 pages, 4 figures, version accepted for publication in PRL
In:	Phys. Rev. Lett. 118 (2017) 261802
DOI	10.1103/PhysRevLett.118.261802
Subject category	hep-th ; Particle Physics - Theory ; hep-ph ; Particle Physics - Phenomenology
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 requires the mass scale of a nonlinear Born-Infeld extension of QED to be $\gtrsim 100$ 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)$_{\rm Y}$ hypercharge gauge symmetry is realized nonlinearly, the limit on the corresponding mass scale is $\gtrsim 90$ GeV, which in turn imposes a lower limit of $\gtrsim 11$ TeV on the magnetic monopole mass in such a U(1)$_{\rm Y}$ Born-Infeld theory.
Copyright/License	arXiv nonexclusive-distrib. 1.0 publication: © 2017-2025 authors (License: CC-BY-4.0)

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