ar X iv : h ep - p h / 94 12 21 1 v 2 2 2 N ov 1 99 6 BOUND STATES IN GALILEAN - INVARIANT QUANTUM FIELD THEORY

ar X iv : h ep - t h / 06 11 21 2 v 1 2 0 N ov 2 00 6 Dynamics of Weyl Scale Invariant non - BPS p = 3 Brane

The action of Weyl scale invariant p=3 brane (domain wall) which breaks the target super Weyl scale symmetry in the N=1, 5D superspace down to the lower dimensional Weyl symmetry W (1, 3) is derived by the approach of coset method. Its dual form action for the Weyl scale invariant tensor gauge field theory is also constructed.

ar X iv : h ep - p h / 94 11 23 2 v 1 7 N ov 1 99 4 CHIRAL PERTURBATION THEORY 1

ar X iv : h ep - p h / 94 06 27 6 v 4 2 1 N ov 1 99 4 NON - DEBYE SCREENING IN HIGH TEMPERATURE QCD ?

We study the non-abelian, gauge invariant, screening potential between two charges in a quark-gluon plasma. Using Braaten and Pisarski resummed perturbation theory in temporal axial gauge, we find a repulsive power screened potential which behaves as ∼ 1/r 6 at large distance. This questions either the physical meaning of the Debye mass or the known pragmatic treatment of the temporal axial gau...

ar X iv : h ep - p h / 94 11 25 4 v 1 9 N ov 1 99 4 Anomalies in Quantum Field Theory : Dispersion Relations and Differential Geometry

We present two different aspects of the anomalies in quantum field theory. One is the dispersion relation aspect, the other is differential geometry where we derive the Stora–Zumino chain of descent equations. *) Lecture given at the conference " QCD 94 " , Montpellier, France. Supported by Fonds zur Förderung der wissenschaftlichen Forschung, Project No. P8444–TEC.

ar X iv : h ep - p h / 96 12 22 4 v 1 2 D ec 1 99 6 Nonperturbative effects in the nonrelativistic hadron scattering

Starting from the gauge-invariant quark-antiquark Green function the expression for the nonrelativistic meson scattering amplitude on the external gluon field is obtained. The nonperturbative form of this amplitude is discussed. It is shown, that nonlocality of the nonperturbative vacuum field distribution plays an essential role. As a concrete example, charmonium-nucleon scattering length is f...