Speaker
Joan Ruiz-Vidal
(Lund University)
Description
The anomalous (odd intrinsic parity) Lagrangian in mesonic Chiral Perturbation Theory is determined to next-to-next-to-leading order ($p^8$) thereby completing the order $p^8$ Lagrangian [1810.06834]. The number of independent operators and the operator basis will be discussed for a general number $N_f$ of light quark flavours as well as for the physical cases $N_f=2,3$. The explicit construction of the Lagrangian agrees with the number of operators derived using the Hilbert series [2009.01239].
| Collaboration / Activity | Hadronic theory |
|---|
Primary authors
Joan Ruiz-Vidal
(Lund University)
Johan Bijnens
(Lund University)
Nils Hermansson-Truedsson
(Lund/Edinburg University)
