ar X iv : h ep - t h / 04 02 11 4 v 1 1 6 Fe b 20 04 Two Stringy Systems of the Kerr Spinning Particle

ar X iv : h ep - p h / 04 02 19 0 v 1 1 8 Fe b 20 04 1 Pentaquarks in the 10 F - and 10 F - plets

ar X iv : h ep - p h / 04 02 19 6 v 1 1 8 Fe b 20 04 The 2 - particle irreducible effective action in gauge theories

The goal of this paper is to develop the formalism of the two-particle irreducible (2PI) [1] (or Cornwall Jackiw Tomboulis (CJT) [2]) effective action (EA) in a way appropiate to its application to non equilibrium gauge theories. We hope this review article will stimulate new work into this field.

ar X iv : h ep - t h / 00 11 06 4 v 3 1 7 Fe b 20 04 Geometrization of the Quantum Effects

We present a conformally invariant generalized form of the free particle action by connecting the wave and particle aspects through gravity. Conformal invariance breaking is introduced by choosing a particular configuration of dynamical variables. This leads to the geometrization of the quantum aspects of matter.

ar X iv : h ep - t h / 04 01 06 4 v 2 1 4 M ar 2 00 4 BITWISTOR FORMULATION OF SPINNING PARTICLE 1

Twistorial formulation of a particle of arbitrary spin has been constructed. Equations of twistor transformation are obtained for massive and massless spinning particles. Twistor space of the massive particle is formed by two twistors and two complex scalars. In the massive case, integral transformations relating twistor fields with usual space–time fields have been constructed.

ar X iv : h ep - t h / 04 02 14 8 v 1 1 9 Fe b 20 04 Surveillance on the light - front gauge fixing

In this work we propose two Lagrange multipliers with distinct coefficients for the light-front gauge that leads to the complete (non-reduced) propagator. This is accomplished via (n · A) 2 + (∂ · A) 2 terms in the La-grangian density. These lead to a well-defined and exact though Lorentz non invariant light front propagator.