ar X iv : h ep - p h / 98 09 23 2 v 1 2 S ep 1 99 8 SNUTP - 98 - 024 The Rotation Average in Lightcone Time - Ordered Perturbation

  • Gwang - Ho Kim and Dong - Pil Min
  • Published 2008

Abstract

We present a rotation average of the two-body scattering amplitude in the lightcone time(τ)-ordered perturbation theory. Using a rotation average procedure, we show that the contribution of individual time-ordered diagram can be quantified in a Lorentz invariant way. The number of time-ordered diagrams can also be reduced by half if the masses of two bodies are same. In the numerical example of φ3 theory, we find that the higher Fock-state contribution is quite small in the lightcone quantization. PACS numbers(s): 11.80.Et, 11.10.St, 11.20.Dj, 11.80.-m Typeset using REVTEX 1

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Cite this paper

@inproceedings{Min2008arXI, title={ar X iv : h ep - p h / 98 09 23 2 v 1 2 S ep 1 99 8 SNUTP - 98 - 024 The Rotation Average in Lightcone Time - Ordered Perturbation}, author={Gwang - Ho Kim and Dong - Pil Min}, year={2008} }