Non-perturbatively improved clover action for SU(2) gauge + fundamental and adjoint representation fermions

Abstract

The research of strongly coupled beyond-the-standard-model theories has generated significant interest in non-abelian gauge field theories with different number of fermions in different representations. Motivated by the increased interest to various technicolor scenarios, we study the non-perturbative improvement of the Wilson-clover action with SU(2) gauge fields and 2 flavors of fermions in the fundamental and adjoint representations. The Sheikholeslami-Wohlert coefficients are fixed using Schroedinger functional boundary conditions. The adjoint representation theory is a candidate for a "minimal technicolor" theory, already studied on the lattice using unimproved Wilson fermions.

arXiv comment7 Pages, Presented at the XXVIII International Symposium on Lattice Field Theory, Lattice2010 June 14-19, 2010 Villasimius, Italy (New version: corrected affiliation)

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Cited by in corpus (6)

• Determining the conformal window: SU(2) gauge theory with N_f = 4, 6 and 10 fermion flavours
• The light bound states of supersymmetric SU(2) Yang-Mills theory
• Nonperturbative improvement of SU(2) lattice gauge theory with adjoint or fundamental flavors
• Perturbative calculation of the clover term for Wilson fermions in any representation of the gauge group SU(N)
• QCD-like technicolor on the lattice
• Clover fermions in the adjoint representation and simulations of supersymmetric Yang-Mills theory