On the minimality of the order p 6 chiral Lagrangian
Copyright policy )On the minimality of the order p 6 chiral Lagrangian
A method to find relations between the operators in the mesonic Lagrangian of Chiral Perturbation Theory at order p^6 is presented. The procedure can be used to establish if the basis of operators in the Lagrangian is minimal. As an example, we apply the method to the two-flavour case in the absence of scalar and pseudo-scalar sources (s=p=0), and conclude that the minimal Lagrangian contains 27 independent operators.
14 pages, 2 figures
Nuclear and High Energy Physics, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Physics, QC1-999, FOS: Physical sciences, ddc: ddc:
Nuclear and High Energy Physics, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Physics, QC1-999, FOS: Physical sciences, ddc: ddc:
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