Research output: Contribution to journal › Article › peer-review
Original language | English |
---|---|
Article number | 261802 |
Pages (from-to) | 261802-1-261802-6 |
Journal | Physical Review Letters |
Volume | 118 |
Issue number | 26 |
Early online date | 27 Jun 2017 |
DOIs | |
Accepted/In press | 23 May 2017 |
E-pub ahead of print | 27 Jun 2017 |
Published | 30 Jun 2017 |
Additional links |
Light-by-Light Scattering_ELLIS_Publishedonline27June2017_GOLD VoR (CC BY)
Light_by_Light_Scattering_ELLIS_Publishedonline27June2017_GOLD_VoR_CC_BY_.pdf, 520 KB, application/pdf
Uploaded date:21 Jul 2017
Version:Final published version
Licence:CC BY
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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