The order p 8 mesonic chiral Lagrangian
Abstract
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.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- January 2019
- DOI:
- arXiv:
- arXiv:1810.06834
- Bibcode:
- 2019JHEP...01..102B
- Keywords:
-
- Chiral Lagrangians;
- Global Symmetries;
- Spontaneous Symmetry Breaking;
- High Energy Physics - Phenomenology;
- High Energy Physics - Lattice
- E-Print:
- 23 pages, The file basis.pdf contains the full basis. Misprints in Lorentz indices in basis corrected w.r.t. v2