arXiv:1011.1781·v2·High Energy Physics — Lattice
Non-perturbatively improved clover action for SU(2) gauge + fundamental and adjoint representation fermions
Anne Mykkanen (1,2) · Jarno Rantaharju (1,2) · Kari Rummukainen (1,2) · Tuomas Karavirta (2,3) · Kimmo Tuominen (2,3) · ((1) University of Helsinki, (2) Helsinki Institute of Physics (3) University of Jyväskylä)
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.
Comments: 7 Pages, Presented at the XXVIII International Symposium on Lattice Field Theory, Lattice2010 June 14-19, 2010 Villasimius, Italy (New version: corrected affiliation)