Papers › The order p⁸ mesonic chiral Lagrangian
The order p⁸ mesonic chiral Lagrangian
Johan Bijnens, Nils Hermansson-Truedsson, Si Wang
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We derive the chiral Lagrangian at next-to-next-to-next-to-leading order (NNNLO) for a general number N_f of light quark flavours as well as for N_f=2,3. We enumerate the contact terms separately. We also discuss the cases where some of the external fields are not included. An example of a choice of Lagrangian is given in the supplementary material.
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