TY - JOUR
T1 - Infrared fixed point in SU(2) gauge theory with adjoint fermions
AU - Degrand, Thomas
AU - Shamir, Yigal
AU - Svetitsky, Benjamin
PY - 2011/4/21
Y1 - 2011/4/21
N2 - We apply Schrödinger-functional techniques to the SU(2) lattice gauge theory with Nf=2 flavors of fermions in the adjoint representation. Our use of hypercubic smearing enables us to work at stronger couplings than did previous studies, before encountering a critical point and a bulk phase boundary. Measurement of the running coupling constant gives evidence of an infrared fixed point g* where 1/g*2=0.20(4)(3). At the fixed point, we find a mass anomalous dimension γm(g *)=0.31(6).
AB - We apply Schrödinger-functional techniques to the SU(2) lattice gauge theory with Nf=2 flavors of fermions in the adjoint representation. Our use of hypercubic smearing enables us to work at stronger couplings than did previous studies, before encountering a critical point and a bulk phase boundary. Measurement of the running coupling constant gives evidence of an infrared fixed point g* where 1/g*2=0.20(4)(3). At the fixed point, we find a mass anomalous dimension γm(g *)=0.31(6).
UR - http://www.scopus.com/inward/record.url?scp=79960748935&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.83.074507
DO - 10.1103/PhysRevD.83.074507
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AN - SCOPUS:79960748935
VL - 83
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 7
M1 - 074507
ER -