H EP - P H / 97 06 23 6 * he p - ph / 9 70 62 36 03 J un 1 99 7 SLAC { PUB { 7542 June

6 v 1 3 J un 1 99 7 SLAC – PUB – 7542 June 1997 The Light – Cone Fock State Expansion

ar X iv : h ep - p h / 97 10 22 9 v 1 2 O ct 1 99 7 SLAC - PUB - 7663 October 1997 Z ′ INVESTIGATIONS AT FUTURE LEPTON

H EP - T H / 97 08 ∣ 0 6 * he p - th / 9 70 81 06 20 A ug 1 99 7

On the basis of the principle that topological quantum phases arise from the scattering around space-time defects in higher dimensional uniication, a geometric model is presented that associates with each quantum phase an element of a transformation group.

ar X iv : h ep - p h / 97 09 23 5 v 1 3 S ep 1 99 7 SLAC - PUB - 7643 September 1997

Attempts to understand the recent observation of an excess of events in the neutral and charged current channels at high−Q2 at HERA has provided an excellent example of how experiments at both low and high energies can be used to simultaneously constrain scenarios which predict new physics beyond the Standard Model. In this talk I will discuss this subject from the point of view of the construc...

ar X iv : h ep - p h / 95 06 25 9 v 1 7 J un 1 99 5 CERN – TH / 95 – 83 hep - ph / 9506259 May 1995 MULTIPLE HARD