ar X iv : h ep - p h / 04 10 18 4 v 1 1 3 O ct 2 00 4 σ DIS ( νN ) , NLO Perturbative QCD and O ( 1 GeV ) Mass Corrections

X iv : h ep - p h / 03 03 12 0 v 1 1 4 M ar 2 00 3 QCD potential as a “ Coulomb – plus – linear ” potential

We show analytically that the QCD potential can be expressed, up to an O(Λ 3 QCD r 2) uncertainty, as the sum of a " Coulomb " potential (with log corrections at short distances) and a linear potential, within an approximation based on perturbative expansion in α S and the renormalon dominance picture. The expansion of V QCD (r) is truncated at O(α N S) [N = 6π/(β 0 α S)], where the term become...

ar X iv : h ep - l at / 0 41 00 34 v 1 2 2 O ct 2 00 4 Hadron Spectrum and Decay Constant from N F = 2 Domain Wall QCD

We report on the first large-scale study of two flavor QCD with domain wall fermions (DWF). Simulation has been carried out at three dynamical quark mass values about 1/2, 3/4, and 1 mstrange on 16 3 × 32 volume with Ls = 12 and a −1 ≈ 1.7 GeV. After discussing the details of the simulation, we report on the light hadron spectrum and decay constants.

ar X iv : h ep - p h / 01 10 31 9 v 1 2 4 O ct 2 00 1 Bottom Quark Fragmentation in Top Quark Decay

We study the fragmentation of the b quark in top decay in NLO QCD, within the framework of perturbative fragmentation, which allows one to resum large logarithms ∼ log(m 2 t /m 2 b). We show the b-energy distribution, which we compare with the exact O(α S) result for a massive b quark. We use data from e + e − machines in order to describe the b-quark hadronization and make predictions for the ...

ar X iv : h ep - p h / 96 10 32 7 v 1 1 1 O ct 1 99 6 Jets and High - E ⊥ Phenomena

The working group on jets and high-E⊥ phenomena studied subjects ranging from next-to-leading order (NLO) corrections in deeply inelastic scattering (DIS) and photoproduction with the corresponding determinations of physical quantities, to the physics of instanton-induced processes, where a novel non-perturbative manifestation of QCD could be observed. Other centres of interest were the physics...

ar X iv : h ep - t h / 04 10 18 8 v 1 18 O ct 2 00 4 Spacetime quantization induced by axial currents