11 research outputs found
Towards an understanding of heavy baryon spectroscopy
The recent observation at CDF and D0 of , and
baryons opens the door to the advent of new states in the bottom baryon sector.
The states measured provide sufficient constraints to fix the parameters of
phenomenological models. One may therefore consistently predict the full bottom
baryon spectra. For this purpose we have solved exactly the three-quark problem
by means of the Faddeev method in momentum space. We consider our guidance may
help experimentalists in the search for new bottom baryons and their findings
will help in constraining further the phenomenological models. We identify
particular states whose masses may allow to discriminate between the dynamics
for the light-quark pairs predicted by different phenomenological models.
Within the same framework we also present results for charmed, doubly charmed,
and doubly bottom baryons. Our results provide a restricted possible assignment
of quantum numbers to recently reported charmed baryon states. Some of them are
perfectly described by wave excitations with , as the , , and .Comment: Accepted for publication in Eur. Phys. J.
Phosphate ions as corrosion inhibitors for reinforcement steel in chloride-rich environments
The Effect of Alternating Current on the Rate of Dissolution of Carbon Steel in a Chloride Electrolyte. Part II. Cathode Potentials
The inhibitory and comparative effects of Zn-Al layered double hydroxide microcontainers intercalated with benzotriazole and nitrite for corrosion protection coatings on AISI 1010 carbon steel
Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture
C10H18N2Na2O10 inhibition and adsorption mechanism on concrete steel-reinforcement corrosion in corrosive environments
C10H18N2Na2O10 (ethylenediaminetetra-acetic acid disodium salt) inhibition and adsorption mechanism on the corrosion of steel-reinforcement corrosion in concrete immersed in corrosive environments were investigated in this paper. For this, seven different concentrations ranging from 0% to 0.667% C10H18N2Na2O10 per weight of cement were admixed in steel-reinforced concretes immersed in saline and in acidic sulphate test-media and these were monitored using electrochemical techniques. Statistical analyses of the scatter of measured data from these, as per ASTM G16-95 R04, showed that C10H18N2Na2O10 > 0% admixtures portrayed excellent efficiency at inhibiting steel-reinforcement corrosion in the saline environment. However, attaining comparably high inhibition of steel-reinforcement corrosion in concrete immersed in the acidic sulphate environment exhibited greater dependency on high C10H18N2Na2O10 admixture concentration in the steel-reinforced concretes. Different models of adsorption isotherms bear indications of chemical adsorption, chemisorptions, as the prevalent adsorption mechanism of C10H18N2Na2O10 on steel-reinforcement in both of the corrosive environments