ar X iv : h ep - p h / 01 01 33 2 v 2 1 F eb 2 00 1 January 2001 PAR - LPTHE 01 / 03 GLUON - PHOTON MIXING in DENSE QCD

ar X iv : h ep - p h / 01 01 33 2 v 3 6 F eb 2 00 1 January 2001 PAR - LPTHE 01 / 03 GLUON - PHOTON MIXING in DENSE QCD

At high baryonic density with the formation of a diquark condensate ∆ = 0, the QCD color symmetry is spontaneously broken. Being massive by the Anderson-Higgs mechanism, gluon and photon should mix together within two linear combinations due to the color nonconservation. Consequently a gluon G could decay into an e − e + pair via its photon component. With a low invariant mass (about a few ten ...

ar X iv : h ep - e x / 01 02 01 9 v 1 9 F eb 2 00 1 PHOTON STRUCTURE

Measurements of di-jet production at HERA provide an important test of NLO QCD calculations. It is also a source of information about the partonic content of the photon, complementary to the measurements in ee experiments. In this article we review the status of the photon structure studies with particular emphasis on HERA measurements.

ar X iv : h ep - p h / 01 02 00 2 v 1 1 F eb 2 00 1 Supersymmetry and Superpartners

A brief summary is given of studies on supersymmetry and the spectrum of superparticles presented at the Linear Collider Workshop 2000.

ar X iv : h ep - p h / 01 11 04 9 v 1 6 N ov 2 00 1 The QCD Phase Diagram and Explosive Astrophysics

ar X iv : h ep - p h / 01 10 03 9 v 1 3 O ct 2 00 1 On spectroscopy of ρ ′ , ρ ′ ′ and ω ′ , ω ′ ′ resonances