ep - p h / 03 07 11 1 v 3 1 1 M ay 2 00 4 The Pion Velocity in Dense Skyrmion Matter

ar X iv : h ep - p h / 03 07 11 1 v 1 8 J ul 2 00 3

We have developed a field theory formalism to calculate in-medium properties of hadrons within a unified approach that exploits a single Lagrangian to describe simultaneously both matter and meson fluctuations. In this paper , we study the pion velocity v π , which controls through a dispersion relation , the pion propagation in the medium. The v π is defined in terms of parameters related to t...

ar X iv : h ep - p h / 01 05 15 0 v 1 1 5 M ay 2 00 1 SUNY - NTG - 01 - 07 High Density Quark Matter under Stress

We study the effect of SU (3) flavor breaking on high density quark matter. We discuss, in particular, the effect a non-zero electron chemical potential and a finite strange quark mass. We argue that these perturbations trigger pion or kaon condensation. The critical chemical potential behaves as µ e ∼ √ mm s ∆/p F and the critical strange quark mass as m s ∼ m 1/3 ∆ 2/3 , where m is the light ...

ar X iv : h ep - p h / 04 05 11 9 v 1 1 3 M ay 2 00 4 The Lorentz and CPT violating effects on the charged

ar X iv : h ep - p h / 04 05 03 9 v 1 5 M ay 2 00 4 η , η ′ → π + π − γ with coupled channels

ar X iv : h ep - p h / 04 05 03 5 v 1 5 M ay 2 00 4 Determination of the mass of the ΛΛ dibaryon by the method of QCD sum rules