Extension of the chiral perturbation theory meson Lagrangian to order p6.

  title={Extension of the chiral perturbation theory meson Lagrangian to order p6.},
  author={Fearing and Scherer},
  journal={Physical review. D, Particles and fields},
  volume={53 1},
  • FearingScherer
  • Published 22 August 1994
  • Physics
  • Physical review. D, Particles and fields
We have constructed the most general chirally invariant Lagrangian {ital scrL}{sub 6} for the meson sector at order {ital p}{sup 6}. The result provides an extension of the standard Gasser-Leutwyler Lagrangian {ital scrL}{sub 4} to one higher order, including as well all the odd intrinsic parity terms in the Lagrangian. The most difficult part of the construction was developing a systematic strategy so as to get all of the independent terms and eliminate the redundant ones in an efficient way… 

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