We consider a dark confining gauge theory with millicharged ultralight pions (ULP) and heavy baryons as matter candidates. The model simultaneously realizes the (strongly interacting particle or ``STUMP'') superheavy (``WIMPzilla'') paradigms, connected by confinement scale of QCD. It is realization matter, unlike conventional axions, exhibits mass splitting between charged neutral pions. ULPs ...

There has been much interest recently in grand unified models of elementary particle interactions, ' in which a simple gauge group breaks down at a @cry large mass scale to a group containing the SU(3)SSU(2)U(1) of the strong, weak, and electromagnetic interactions. Because the unbroken symmetry group contains a U(1) factor, general arguments' imply that such models contain topologically stable...

In this paper we review the different relativistic and QED contributions to energies, ionic radii, transition probabilities and Landé g-factors in super-heavy elements, with the help of the MultiConfiguration Dirac-Fock method (MCDF). The effects of taking into account the Breit interaction to all orders by including it in the self-consistent field process are demonstrated. State of the art rad...