The order p 8 mesonic chiral Lagrangian

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    Abstract

    We derive the chiral Lagrangian at next-to-next-to-next-to-leading order (NNNLO) for a general number Nf of light quark flavours as well as for Nf = 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.

    Original languageEnglish
    Article number102
    JournalJournal of High Energy Physics
    Volume2019
    Issue number1
    DOIs
    Publication statusPublished - 2019

    Subject classification (UKÄ)

    • Subatomic Physics

    Free keywords

    • Chiral Lagrangians
    • Global Symmetries
    • Spontaneous Symmetry Breaking

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