• DOI:10.1103/PhysRevD.66.116009
• Corpus ID: 119390831

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}
}

• G. Cho, Etsuko Izumi, A. Sugamoto
• Published 27 December 2001
• Materials Science
• Physical Review D

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 ${e}^{+}{e}^{\ensuremath{-}}$ collider LEP2 experiments give the constraint of $1/a\ensuremath{\gtrsim}461\mathrm{GeV}.$ The expected bound on the same parameter a at a future ${e}^{+}{e}^{\ensuremath{-}}$ linear collider is briefly discussed.