Effective Lagrangian for low-scale technicolor
Lane, Kenneth D.
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Citation (published version)Kenneth Lane, Adam Martin. 2009. "Effective Lagrangian for low-scale technicolor." PHYSICAL REVIEW D, Volume 80, Issue 11, 20 pp. https://doi.org/10.1103/PhysRevD.80.115001
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 technivectors are described using the hidden local symmetry (HLS) formalism of Bando, et al. The Lagrangian is based on SU(2)⊗U(1)⊗U(2)L⊗U(2)R, where SU(2)⊗U(1) is the electroweak gauge group and U(2)L⊗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.
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