I demonstrate how confinement in Coulomb-gauge QCD makes quark-quark states of the color anti-triplet (diquarks) move out of the physical spectrum. Mesons as color singlet quark-antiquark states, on the other hand have finite masses and for highly excited states in the meson spectra effective restoration of chiral symmetry can be observed. In Coulomb-gauge QCD the 00-component of the gluon prop...

We present a model for the J/ψΛ spectrum in B−→J/ψΛp¯ decays, including PψsΛ(4338) baryon recently observed by LHCb collaboration. assume production via triangle diagrams which couple to final state non-perturbative interactions are constrained heavy-quark and SU3-flavor symmetry. The bulk of distribution is described diagram with color-favored electroweak vertex, while sharp enhancement due si...

A scenario is put forth for the formation of supermassive black holes at the centers of galaxies. It depends upon the formation of a Mestel disk with a flat rotation curve, M<r ∝ r and Σ ∝ 1/r. Such disks could form from the collapse of uniformly rotating, isolated, gaseous clouds, either proto-galactic, galaxy-mass damped Lyα clouds or the gas that survives galaxy mergers. We propose that in e...

Density functional theory (DFT) calculations of the magnetic shielding for solid state nuclear magnetic resonance (NMR) provide an important contribution for the understanding of experimentally observed signals. In this work, we present calculations of the Y NMR shielding in intermetallic compounds (YMg, YT, YTX, YT2X, YT2X2, Y2TB6, and Y2TSi3 where T represents various transition metals and X ...