ar X iv : h ep - p h / 01 11 30 8 v 1 2 3 N ov 2 00 1 Chiral loops and VMD in the V → PPγ decays

ar X iv : h ep - p h / 01 11 30 8 v 2 1 8 A pr 2 00 2 Chiral loops and VMD in the V → PPγ decays

We evaluate radiative decays of ρ and ω going to two neutral mesons, ππ and πη. We use the sequential vector decay mechanisms in addition to chiral loops and ρ-ω mixing. The chiral loops are obtained using elements of UχPT successfully applied in the study of meson-meson interactions up to 1.2 GeV. The chiral loops are found very important in the case of the ρ → ππγ decay and small in the other...

ar X iv : h ep - p h / 01 11 34 1 v 1 2 7 N ov 2 00 1 TUW - 01 - 30 HARD THERMAL LOOPS AND QCD THERMODYNAMICS

These lectures give an introduction to thermal perturbation theory, hard thermal loops, and their use in a nonperturbative, approximately self-consistent resummation of the thermodynamical potentials of quantum chromodynamics.

ar X iv : h ep - p h / 00 11 16 3 v 3 2 8 N ov 2 00 0 SLAC - PUB - 8707 hep - ph / 0011163 November 2000 Challenges in

We give an personal overview of some of the unsolved problems related to hyperon decays. We cover nonleptonic decays, radiative decays and magnetic moments. Some of the theoretical issues are also touched upon.

ar X iv : h ep - p h / 02 11 38 2 v 1 2 5 N ov 2 00 2 Gold - plated Mode of CP - Violation in Decays of Ξ bc Baryons

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