Low-energy constant $L_{10}$ in a two-representation lattice theory

Abstract

We calculate the low-energy constant $L_{10}$ in a two-representation SU(4) lattice gauge theory that is close to a composite-Higgs model. From this we obtain the contribution of the new strong sector to the $S$ parameter. This leads to an upper bound on the vacuum misalignment parameter $\xi$ which is similar to current estimates of this bound. Our result agrees with large-$N_c$ scaling expectations, within large systematic uncertainties.

Journal version, RevTeX, 20 pages. Expanded discussion of the pure NLO result

References in corpus (8)

• UV Completions of Partial Compositeness: The Case for a SU(4) Gauge Group
• S-parameter and pseudo-Nambu-Goldstone boson mass from lattice QCD
• Parity Doubling and the S Parameter Below the Conformal Window
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Cited by in corpus (4)

• Infrared fixed point and anomalous dimensions in a composite Higgs model
• Coloured spin-1 states in composite Higgs models
• Reducing Hadronic Uncertainty in Low-Energy Neutral-Current Processes
• Electroweak spin-1 resonances in Composite Higgs models