TY - JOUR
T1 - SU(4) lattice gauge theory with decuplet fermions
T2 - Schrödinger functional analysis
AU - Degrand, Thomas
AU - Shamir, Yigal
AU - Svetitsky, Benjamin
PY - 2012/4/20
Y1 - 2012/4/20
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84860212588&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.85.074506
DO - 10.1103/PhysRevD.85.074506
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AN - SCOPUS:84860212588
SN - 1550-7998
VL - 85
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 074506
ER -