On the mesonic Lagrangian of order p^6 in chiral SU(2)

Abstract

We show that the number of operators in the presently known mesonic chiral Lagrangian of order p^6 in the two-flavour sector can be reduced by at least one from 57 to 56 by providing an explicit relation among the operators. We briefly discuss the relevance of this new relation.

Revtex, 2 pages