ep - p h / 00 06 20 1 v 1 1 6 Ju n 20 00 Event - by - event fluctuations of the charged particle ratio from non - equilibrium transport theory

ar X iv : h ep - t h / 06 06 00 8 v 1 1 Ju n 20 06 Feynman problem in the noncommutative case

In the context of the Feynman’s derivation of electrodynamics, we show that noncommutativity allows other particle dynamics than the standard formalism of electrodynamics.

ar X iv : h ep - p h / 00 06 08 2 v 2 1 3 Ju n 20 00 LUNFD 6 / ( NFFL - 7187 ) 2000 PHOTON STRUCTURE AT HERA

The structure of the virtual photon and its contribution to small x processes in deep inelastic scattering at HERA is discussed.

ar X iv : h ep - p h / 00 06 19 3 v 1 1 6 Ju n 20 00 ERROR PROPAGATION IN QCD FITS

The parton momentum density distributions of the proton were obtained from a NLO QCD analysis of HERA and fixed target structure function data. The resulting parton distribution set includes the full information on errors and correlations.

X iv : h ep - t h / 00 06 09 7 v 1 1 4 Ju n 20 00 Interaction of electric charges in ( 2 + 1 ) D magnetic dipole gas

X iv : h ep - p h / 06 07 18 7 v 1 1 7 Ju l 2 00 6 How Large is the “ Natural ” Magnetic Moment ?

The “natural” magnetic moment of a particle of spin S is generally assumed to be that given by the Belinfante conjecture and has the value g = 1/S for its gyromagnetic ratio. Thus, for the spin 1/2 electron we find the Dirac value ge = 2. However, in the standard model the charged W boson, a spin one particle, is found to have the value gW+ = 2. We show how this result comes about and argue tha...