ar X iv : c on d - m at / 9 80 91 03 v 1 7 S ep 1 99 8 Cannon for Neutral Particles

ar X iv : h ep - t h / 99 03 14 8 v 1 1 7 M ar 1 99 9 Neutral Particles and Super Schwinger Terms

Z2-graded Schwinger terms for neutral particles in 1 and 3 space dimensions are considered.

ar X iv : h ep - e x / 99 10 03 6 v 1 1 8 O ct 1 99 9 EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH CERN – EP / 99 – 139 7 October 1999

This paper is meant as a contribution to the often debated subject of how to combine data which appear to be in mutual disagreement. As a practical example, the ǫ ′ /ǫ determinations have been considered.

ar X iv : h ep - e x / 99 10 03 1 v 1 1 5 O ct 1 99 9 Is there new physics in the 1999 ALEPH data ?

The first results on searches performed by ALEPH on the 1999 data sample are presented here. They are based on an integrated luminosity of about 54 pb−1 collected at the two centre-of-mass energies of 192 and 196 GeV. Preliminary results on searches for supersymmetric particles and for the neutral Higgs bosons are shown.

ar X iv : h ep - p h / 98 03 43 3 v 1 2 4 M ar 1 99 8 THEORETICAL STATUS OF THE B c MESON

Theoretical predictions on the B c meson properties are reviewed.

ar X iv : c on d - m at / 9 80 60 82 v 1 [ co nd - m at . m tr l - sc i ] 5 J un 1 99 8 Magnetic Particles