Does the effective Lagrangian for low-energy QCD scale?

An Effective Lagrangian for Low-Scale Technicolor

We present an effective Lagrangian for low-scale technicolor. It describes the interactions at energies <∼MρT of the lowest-lying bound states of the lightest technifermion doublet — the spin-one ρT , ωT , aT , fT and the corresponding technipions πT . This Lagrangian is intended to put on firmer ground the technicolor straw-man phenomenology used for collider searches of low-scale technicolor....

The low energy effective Lagrangian relevant for us is therefore

In this paper we study the implications of the recent high precision measurement of (g−2)μ by BNL [1] on new heavy physics beyond the SM. The effect of two d=6 operators on the anomalous magnetic momment of the muon is considered and the new physics contribution to aμ reported by BNL has been used to put bounds on the scale associated with these operators.

Low Energy Effective Lagrangian of the Bess Model

In this paper the low energy limit of the BESS model is studied in a systematic way. The method consists in eliminating the heavy vector field, by use of its classical equations of motion, in the infinite mass limit. After the elimination of the heavy degrees of freedom we get additional terms to the Standard Model lagrangian. After a finite renormalization of the ordinary gauge bosons wave fun...

Effective Lagrangian for scale-invariant quantum electrodynamics.

On Deriving the Effective Interaction from the QCD-Lagrangian

The canonical front form Hamiltonian for non-Abelian SU(N) gauge theory in 3+1 dimensions is mapped non-perturbatively on an effective Hamiltonian which acts only in the Fock space of a quark and an antiquark. The approach is based on the novel method of iterated resolvents and on discretized light-cone quantization, driven to the continuum limit. It is free of the usual Tamm-Dancoff truncation...