Effective Lagrangian for low-scale technicolor

We present an effective Lagrangian for low-scale technicolor. It describes the interactions at energies < or approx. 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 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)L x U(2)R, where SU(2) x U(1) is the electroweak gauge group and U(2)L x U(2)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 aT and ρT/ωT, respectively.