ar X iv : h ep - t h / 02 01 21 0 v 2 1 4 Fe b 20 02 January 2002

ar X iv : h ep - p h / 02 06 17 1 v 2 2 4 Ju n 20 02 IPHE 2002 - 009 June 24 , 2002 B 0 – B 0 MIXING

ar X iv : h ep - p h / 01 12 12 1 v 2 2 2 Fe b 20 02 Rephasing Invariants of CP and T Violation in the Four - Neutrino Mixing Models

We calculate the rephasing invariants of CP and T violation in a favorable parametrization of the 4 × 4 lepton flavor mixing matrix. Their relations with the CP-and T-violating asymmetries in neutrino oscillations are derived, and the matter effects are briefly discussed.

ar X iv : h ep - e x / 02 02 02 3 v 1 1 1 Fe b 20 02 RESULTS FROM HIGH ENERGY ACCELERATORS

We review some of the recent experimental results obtained at high-energy colliders with emphasis on LEP and SLC results.

ar X iv : h ep - p h / 02 02 15 7 v 1 1 5 Fe b 20 02 Hadron 2001 Conference Summary : Theory

This contribution reviews some of the theoretical issues and predictions that were discussed at HADRON2001. The topics are divided into principle areas, 1) exotics, 2) vectors, 3) scalars, and 4) higher-mass states. The current status of theoretical predictions for each area are summarized, together with a brief description of experiment. New and detailed experimental results are presented in t...

ar X iv : h ep - p h / 02 02 19 1 v 1 2 0 Fe b 20 02 DPNU - 02 - 04 Fermion Mass Hierarchy in 6 dimensional SO ( 10 ) SUSY GUT

We suggest simple models which produce the suitable fermion mass hierarchies and flavor mixing angles based on the supersymmetric SO(10) grand unified theory in 6 dimensions compactified on a T 2 /Z 2 orbifold. The gauge and Higgs fields propagate in 6 dimensions while ordinal chiral matter fields are localized in 4 dimensions. We introduce extra vector-like heavy fields in the extra dimensions...