CERN LEP2 constraint on 4D QED having a dynamically generated spatial dimension

@article{Cho2002CERNLC,
  title={CERN LEP2 constraint on 4D QED having a dynamically generated spatial dimension},
  author={Gihyuk Cho and Etsuko Izumi and Akio Sugamoto},
  journal={Physical Review D},
  year={2002},
  volume={66},
  pages={116009}
}
We study 4D QED in which one spatial dimension is dynamically generated from the 3D action, following the mechanism proposed by Arkani-Hamed, Cohen, and Georgi. In this model, the generated fourth dimension is discretized by an interval parameter a. We examine the phenomenological constraint on the parameter a coming from collider experiments on the QED process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma}.$ It is found that the CERN ${e}^{+}{e… 
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