Low-energy constant L10 in a two-representation lattice theory

Maarten Golterman, William I. Jay, Ethan T. Neil, Yigal Shamir*, Benjamin Svetitsky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We calculate the low-energy constant L10 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 ζ which is similar to current estimates of this bound. Our result agrees with large-Nc scaling expectations, within large systematic uncertainties.

Original languageEnglish
Article number074509
JournalPhysical Review D
Issue number7
StatePublished - 21 Apr 2021


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