SU(4) lattice gauge theory with decuplet fermions: Schrödinger functional analysis

Thomas Degrand, Yigal Shamir, Benjamin Svetitsky

Research output: Contribution to journalArticlepeer-review

Abstract

We complete a program of study of SU(N) gauge theories coupled to two flavors of fermions in the two-index symmetric representation by performing numerical simulations in SU(4). The beta function, defined and calculated via the Schrödinger functional, runs more slowly than the two-loop perturbative result. The mass anomalous dimension levels off in strong coupling at a value of about 0.45, rendering this theory unsuitable for walking technicolor. A large-N comparison of these data with results from SU(2) and SU(3) reveals striking regularities.

Original languageEnglish
Article number074506
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number7
DOIs
StatePublished - 20 Apr 2012

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