X iv : h ep - p h / 05 06 05 9 v 1 6 J un 2 00 5 The influence of strength of hyperon - hyperon interactions on neutron star properties

ar X iv : h ep - p h / 05 06 01 6 v 1 2 J un 2 00 5 Theory Summary of the Electroweak Session for Moriond 2005

I broadly summarize the theoretical contributions in the Electroweak session of the 2005 Moriond meeting under four rubrics: i) neutrinos; ii) cosmology; iii) electroweak interactions; and iv) flavor physics.

ar X iv : h ep - p h / 05 06 27 0 v 1 27 J un 2 00 5 Coupled - channel model for charmonium levels and an option for X ( 3872 )

ar X iv : h ep - p h / 05 10 17 7 v 2 3 N ov 2 00 5 Hyperon Semileptonic Decays and CKM Unitarity ∗

We perform a new numerical analysis of hyperon semileptonic decays emphasizing the systematic uncertainties. The poor understanding of SU(3) symmetry breaking effects at second order in the vector form factor translates into a large error of |Vus|. Using our determination |Vus| = 0.226 ± 0.005 together with those coming from other sources we test the unitarity of the CKM matrix.

ar X iv : h ep - p h / 03 06 05 7 v 1 6 J un 2 00 3 The Uses of Conformal Symmetry in QCD

The Lagrangian of Quantum Chromodynamics is invariant under conformal transformations. Although this symmetry is broken by quantum corrections, it has important consequences for strong interactions at short distances and provides one with powerful tools in practical calculations. In this review we give a short exposition of the relevant ideas, techniques and applications of conformal symmetry t...

ar X iv : h ep - p h / 06 05 26 3 v 2 3 1 M ay 2 00 6 Baryogenesis by R - parity violating top quark decays and neutron - antineutron oscillations

Generation of the cosmological baryon asymmetry in SUSY based model with broken R-parity and low scale gravity is considered. The model allows for a long-life time or even stable proton and observable neutron-antineutron oscillations.