We present numerical evidence that suggests the introduction of a non-zero pion mass might dramatically affect the structure of minimal energy Skyrmions. It appears that the shell-like Skyrmions which are the minima when the pions are massless can fail to be minimal energy bound states for particular baryon numbers, with a strong dependence upon the value of the pion mass. The effects of a pion...

The nonlinear evolution of the system consisting of collisional baryons and collisionless dark matter is generally characterized by strong shocks and discontinuities in the baryon fluid. The velocity of baryons will be significantly slowing down at post-shock areas of gravitational strong shocks, which can occur in high overdense as well as low overdense regions. On the other hand, the shocks a...

We investigate the properties of hybrid gravitational/hydrodynamical simulations, examining both the numerics and the general physical properties of gravitationally driven, hierarchical collapse in a mixed baryonic/dark matter fluid. We demonstrate that, under certain restrictions, such simulations converge with increasing resolution to a consistent solution. The dark matter achieves convergenc...

We consider mass correction effects on the polar angular distribution of a baryon–antibaryon pair created in the chain decay process e−e+ → J/ψ → BB̄, generalizing a previous analysis of Carimalo. We show the relevance of the features of the baryon distribution amplitudes and estimate the electromagnetic corrections to the QCD results. 13.65.+i, 13.25.Gv, 12.38.Bx, 14.40.Gx Typeset using REVTEX

We select a sample of Milky Way (MW) mass haloes from high-resolution version the EAGLE simulation to study their inner dark matter (DM) content and how baryons alter it. As in previous studies, we find that all are more massive at centre compared DM-only (DMO) counterparts present day as result dissipational collapse during assembly galaxy. However, identify two processes can reduce central ha...