Effective Lagrangian for low-scale technicolor

We present an effective Lagrangian for low-scale technicolor. It describes the interactions at energies < or approx. M{sub {rho}{sub T}} of the lowest-lying bound states of the lightest technifermion doublet--the spin-one {rho}{sub T}, {omega}{sub T}, a{sub T}, f{sub T}, and the corresponding technipions {pi}{sub T}. This Lagrangian is intended to put on firmer ground the technicolor straw man phenomenology used for collider searches of low-scale technicolor. The technivectors are described using the hidden local symmetry (HLS) formalism of Bando, et al. The Lagrangian is based on SU(2) x U(1) x U(2){sub L} x U(2){sub R}, where SU(2) x U(1) is the electroweak gauge group and U(2){sub L} x U(2){sub R} is the HLS gauge group. Special attention is paid to the higher-derivative standard HLS and Wess-Zumino-Witten interactions needed to describe radiative and other decays of a{sub T} and {rho}{sub T}/{omega}{sub T}, respectively.