ar X iv : h ep - p h / 01 05 14 1 v 1 1 5 M ay 2 00 1 Nonperturbative corrections to the quark self - energy

ar X iv : h ep - p h / 01 05 15 0 v 1 1 5 M ay 2 00 1 SUNY - NTG - 01 - 07 High Density Quark Matter under Stress

We study the effect of SU (3) flavor breaking on high density quark matter. We discuss, in particular, the effect a non-zero electron chemical potential and a finite strange quark mass. We argue that these perturbations trigger pion or kaon condensation. The critical chemical potential behaves as µ e ∼ √ mm s ∆/p F and the critical strange quark mass as m s ∼ m 1/3 ∆ 2/3 , where m is the light ...

ar X iv : h ep - p h / 00 05 14 2 v 1 1 5 M ay 2 00 0 THE SUSY WORKING GROUP : Summary Report

The determination of the full SUSY QCD corrections to the production of squarks, gluinos and gauginos at hadron colliders is reviewed. The NLO corrections stabilize the theoretical predictions of the various production cross sections significantly and lead to sizeable enhancements of the most relevant cross sections. We discuss the phenomenological consequences of the results on present and fut...

ar X iv : h ep - p h / 96 05 42 4 v 1 2 8 M ay 1 99 6 More nonperturbative corrections to the fine and hyperfine splitting in the heavy quarkonium

More nonperturbative corrections to the fine and hyperfine splitting in the heavy quarkonium Abstract The leading nonperturbative effects to the fine and hyperfine splitting (for n=2) have been calculated recently. We point out that a contribution of the same order O(Λ 4 QCD /m 3 α 2 s) has been overlooked. We calculate it in this paper.

ar X iv : h ep - t h / 98 05 09 3 v 1 1 5 M ay 1 99 8 A Course on : “ Modular Localization and Nonperturbative Local Quantum Physics ”

ar X iv : h ep - p h / 99 05 43 8 v 1 2 1 M ay 1 99 9

An enhancement for the η production in proton-neutron collisions as compared with that in proton-proton scattering has been recently observed. We present a calculation for the production cross section, in proton-neutron collisions near threshold, within instanton model for the QCD vacuum and show that a specific flavor dependent nonperturbative quark-gluon interaction related to instantons is a...