Width of photon decay in a magnetic field: Elementary semiclassical derivation and sensitivity to Lorentz violation

@article{Satunin2013WidthOP,
  title={Width of photon decay in a magnetic field: Elementary semiclassical derivation and sensitivity to Lorentz violation},
  author={Petr Satunin},
  journal={Physical Review D},
  year={2013},
  volume={87},
  pages={105015}
}
  • P. Satunin
  • Published 24 January 2013
  • Physics
  • Physical Review D
We present an elementary derivation of the width of photon decay in a weak magnetic field using the semiclassical method of worldline instantons. The calculation is generalized to a model of quantum electrodynamics with broken Lorentz symmetry. Implications for the search of deviations from Lorentz invariance in the cosmic ray experiments are discussed. 
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