ar X iv : h ep - e x / 99 08 00 5 v 1 2 A ug 1 99 9 Budker

ar X iv : h ep - p h / 99 08 46 0 v 1 2 5 A ug 1 99 9 Soft Thermal Loops in Scalar Quantum Electrodynamics ∗ Stefan Leupold and Markus

Scalar QED is used to study approximations in thermal field theory beyond the Hard Thermal Loop resummation scheme. For this purpose the photon self energy is calculated for external momenta of the order eT using Hard Thermal Loop resummed Green functions.

ar X iv : h ep - e x / 00 08 06 5 v 1 2 6 A ug 2 00 0 Search for Large Extra Dimensions in Dielectron and Diphoton Production

ar X iv : h ep - p h / 99 08 21 4 v 1 2 A ug 1 99 9 OCHA - PP - 138 DPNU - 99 - 24 On the η ′

The possibility of η ′ having a gluonic admixture is still not excluded. In fact, the anomalous coupling of gluonic component of η ′ may play an important role towards understanding the unexpectedly large branching ratio for B → η ′ X s reported by CLEO. We point out that the η ′ gluonic component may be as large as 26 % by analysing the latest experimental data.

ar X iv : h ep - p h / 98 08 47 2 v 1 2 9 A ug 1 99 8 UH - 511 - 913 - 98 August 1998 CP VIOLATION IN HYPERON DECAYS

The theory and phenomenology of CP violation in hyperon decays is summarized.

ar X iv : h ep - p h / 99 08 22 1 v 1 2 A ug 1 99 9 The odderon and spin - dependence of high energy proton - proton scattering

The sensitivity of the spin dependence of high energy pp scattering, particularly the asymmetry A N N , to the odderon is demonstrated. Several possible ways of determining the spin dependence of the odderon coupling from small-t data are presented.