3 papers
hep-ph1999
Computation of quark mass anomalous dimension at O(1/N_f^2) in quantum chromodynamics
M. Ciuchini, S. E. Derkachov, J. A. Gracey +1
We present the formalism to calculate d-dimensional critical exponents in QCD in the large N_f expansion where N_f is the number of quark flavours. It relies in part on demonstrati…
hep-ph1999
Quark mass anomalous dimension at O(1/N_f^2) in QCD
M. Ciuchini, S. E. Derkachov J. A. Gracey, A. N. Manashov
We compute the d-dimensional critical exponents corresponding to the wave function and mass renormalization of the quark in QCD in the Landau gauge at a new order, O(1/N_f^2), in t…
hep-th1995
On the N = 2 supersymmetric CP(N) sigma model and Chern Simons terms
Massimiliano Ciuchini, J. A. Gracey
We use the large self consistency method to compute the critical exponents of the fields and coupling of the supersymmetric CP(N) sigma model at leading order in in vario…