8 v 1 7 A ug 2 00 3 Strangeness Production in Nuclear Matter and Expansion Dynamics

ar X iv : 0 70 8 . 26 18 v 1 [ as tr o - ph ] 2 0 A ug 2 00 7 Using Local Volume data to constrain Dark Matter dynamics

ar X iv : h ep - p h / 05 12 26 5 v 1 2 0 D ec 2 00 5 Strangeness and thresholds of phase changes in relativistic heavy ion collisions

We discuss how the dynamics of the evolving hot fireball of quark–gluon matter impacts phase transition between the deconfined and confined state of matter. The rapid expansion of the fireball of deconfined matter created in heavy ion collisions facilitates formation of an over-saturated strange quark phase space. The related excess abundance of strangeness is compensating the suppression of th...

0 10 80 17 v 1 8 A ug 2 00 1 1 Vector Mesons and Baryon Resonances in Nuclear Matter

We calculate the effect of many-body interactions in nuclear matter on the spectral function of ρ and ω meson. In particular, we focus on the role played by baryon resonances in this context.

ar X iv : 0 70 8 . 19 35 v 3 [ as tr o - ph ] 2 7 A ug 2 00 7 Testing modified gravity with globular cluster velocity dispersions

Globular clusters (GCs) in the Milky Way have characteristic velocity dispersions that are consistent with the predictions of Newtonian gravity, and may be at odds with Modified Newtonian Dynamics (MOND) and possibly the cold dark matter model. We discuss a modified gravity (MOG) theory that can successfully model the velocity dispersions of GCs in the Galactic neighborhood. MOG produces veloci...

ar X iv : h ep - p h / 02 08 24 2 v 1 2 6 A ug 2 00 2 Nucleon strangeness and spin crisis ?

We summarize three alternative extensions of the quark-valence picture of nucleon strangeness and spin, including (1) gluon spin in QCD, (2) Bjorken sum rule and QCD, (3) D–E meson mixing and tadpole leakage. All three approaches suggest that ∼ 40% of the nucleon’s spin (as well as its momentum) resides with quarks, but that less than 6% is due to strange quarks.