I discuss the effects of QCD radiative corrections in Supersymmetric theories. After summarizing the SUSY– QCD lagrangian in the Minimal Supersymmetric extension of the Standard Model, I will discuss the new features introduced by SUSY, and the main complications compared to standard QCD corrections. I will then discuss a few examples of QCD calculations in SUSY theories, for standard processes...

To reduce the size of this section's PostScript file, we have divided it into two PostScript files. We present the following index: PART 1 Page # Section name 1 9.1 The QCD Lagrangian 2 9.2 The QCD coupling and renormalization scheme 6 9.3 QCD in deep-inelastic scattering 9 9.4 QCD in decays of the τ lepton 11 9.5 QCD in high-energy hadron collisions PART 2

Experimental tests of QCD predictions for event shape distributions combining contributions from hard and soft processes are discussed. The hard processes are predicted by perturbative QCD calculations. The soft processes cannot be calculated directly using perturbative QCD, they are treated by a power correction model based on the analysis of infrared renormalons. Furthermore, an analysis of t...

We propose a method to calculate the QCD level density directly from the thermodynamic quantities obtained by lattice QCD simulations with the use of the maximum entropy method (MEM). Understanding QCD thermodynamics from QCD spectral properties has its own importance. Also it has a close connection to phenomenological analyses of the lattice data as well as experimental data on the basis of ha...

The results of LO Fixed point QCD (FP-QCD) analysis of the CCFR data for the nucleon structure function xF3(x,Q 2) are presented. The predictions of FPQCD, in which αs(Q 2) tends to a nonzero coupling constant α0 as Q 2 → ∞ , are in good agreement with the data. The description of the data is even better than that in the case of LO QCD. The FP-QCD parameter α0 is determined with a good accuracy...