TY - JOUR
T1 - Lattice study of infrared behaviour in SU(3) gauge theory with twelve massless flavours
AU - Lin, Chi-Jen
AU - Ogawa, Kenji
AU - Ohki, Hiroshi
AU - Shintani, Eigo
PY - 2012
Y1 - 2012
N2 - We present details of a lattice study of infrared behaviour in SU(3) gauge theory with twelve massless fermions in the fundamental representation. Using the stepscaling method, we compute the coupling constant in this theory over a large range of scale. The renormalisation scheme in this work is defined by the ratio of Polyakov loop correlators in the directions with different boundary conditions. We closely examine systematic effects, and find that they are dominated by errors arising from the continuum extrapolation. Our investigation suggests that SU(3) gauge theory with twelve flavours contains an infrared fixed point.
AB - We present details of a lattice study of infrared behaviour in SU(3) gauge theory with twelve massless fermions in the fundamental representation. Using the stepscaling method, we compute the coupling constant in this theory over a large range of scale. The renormalisation scheme in this work is defined by the ratio of Polyakov loop correlators in the directions with different boundary conditions. We closely examine systematic effects, and find that they are dominated by errors arising from the continuum extrapolation. Our investigation suggests that SU(3) gauge theory with twelve flavours contains an infrared fixed point.
KW - Lattice gauge field theories
KW - Renormalization group
KW - Technicolor and composite models
UR - http://www.scopus.com/inward/record.url?scp=84865772729&partnerID=8YFLogxK
U2 - 10.1007/JHEP08(2012)096
DO - 10.1007/JHEP08(2012)096
M3 - Review article
AN - SCOPUS:84865772729
SN - 1126-6708
VL - 2012
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 8
M1 - 96
ER -