154 citations · 154 across the 3 of their papers we have counts for
3 papers
hep-th2001
Contraction and decomposition matrices for vacuum diagrams
K. Knecht, H. Veschelde
Tensor reduction of vacuum diagrams uses contraction and decomposition matrices. We present general recurrence relations for the calculation of those matrices and an explicit formu…
hep-th2001★ 154 cited
The non-perturbative groundstate of Q.C.D and the local composite operator A_mu^2
H. Verschelde, K. Knecht, K. Van Acoleyen +1
We investigate the possibility that the dimension 2 condensate A_mu^2 has a non zero non-perturbative value in Yang-Mills theory. We introduce a multiplicatively renormalisable eff…
hep-ph1997
A new method for the calculation of massive multiloop diagrams
K. Knecht, H. Verschelde
Starting from the parametric representation of a Feynman diagram, we obtain it's well defined value in dimensional regularisation by changing the integrals over parameters into con…