Earth’s mantle, whose bulk composition is broadly peridotitic, likely experienced periods of extensive melting in its early history that formed magma oceans and led to differentiation formation an atmosphere. However, the physical behaviour poorly understood, as high liquidus temperatures rapid quench rates required preserve peridotite liquids glasses have so far limited their investigation. In...

We use a color-magnetic interaction model (CMIM), traditional constituent quark (CQM) and multiquark color flux-tube (MCFTM) to systematically investigate the properties of states $[Q_1Q_2][\bar{Q}_3\bar{Q}_4]$ ($Q=c,b$). The dynamical investigation indicates that CMIM can not completely absorb QCD effects through effective mass overestimates in under assumption same spatial configurations. Cou...

We investigated the four-quark systems with quark structures of $$cs\bar{c}\bar{s}$$ , $$cq\bar{c}\bar{s}$$ $$bs\bar{b}\bar{s}$$ and $$bq\bar{b}\bar{s}$$ in framework non-relativistic model, motivated by recent observation exotic resonances X(4140), X(4274), X(4350), X(4500), X(4700) reported several experiment collaborations. The colour antitriplet-triplet configuration diquark-antidiquark com...

We examine the bar instability in galactic models with an exponential disk and a cuspy dark matter (DM) halo with a Navarro-Frenk-White (NFW) cosmological density profile. The equilibrium models are constructed from a 3-integral composite distribution function but subject to the bar instability. We generate a sequence of models with a range of mass resolution from 1.8K to 18M particles in the d...

Simulations predict that the dark matter halos of galaxies should have central cusps, while those inferred from observed galaxies do not have cusps. We demonstrate, using both linear perturbation theory and n-body simulations, that a disk bar, which should be ubiquitous in forming galaxies, can produce cores in cuspy CDM dark matter profiles within five bar orbital times. Simulations of forming...

The coordination properties of the beta-keto phosphine ligands R(2)PCH(2)C(O)Ph (, R = i-Pr; , R = Ph), of the new acetamide-derived phosphine ligand (i-Pr)(2)PNHC(O)Me () and of Ph(2)PNHC(O)Me () have been examined towards Ni(ii) complexes. Comparisons are made between systems in which the PCH(2) function of the ketophosphine has been replaced with an isoelectronic PNH group in amide-derived l...

We calculate the masses of $QQ\bar{q}\bar{q}$ ($Q=c,b$; $q=u,d,s$) tetraquark states with aid heavy diquark-antiquark symmetry (HDAS) and chromomagnetic interaction (CMI) model. The highest-spin ($J=2$) tetraquarks that have only $(QQ)_{\bar{3}_c}(\bar{q}\bar{q})_{3_c}$ color structure are related those conventional hadrons using HDAS. Thereafter, their partner determined mass splittings in CMI...