Analytic Amplitudes for Hadronic Forward Scattering : COMPETE Update

We consider several classes of analytic parametrizations of hadronic scattering amplitudes, and compare their predictions to all available forward data in hadron-hadron, gamma-p and gamma-gamma reactions. Although these parametrizations are very close for SQRTs larger than 9 GeV, it turns out that they differ markedly at low energy, where a universal Pomeron term like ln**2 s enables one to extend the fit down to SQRTs equal to 4 GeV. We present predictions on the total cross sections and on the ratio of the real part to the imaginary part of the elastic amplitude (RHO parameter) for present and future pp and antipp colliders, and on total cross sections for gamma-p into hadrons at cosmic-ray energies and for gamma-gamma into hadrons up to SQRTs equal to 1 TeV.Comment: 3 pages, 3 tables. To be published in the Proceedings of the 31st International Conference on High Energy Physics (ICHEP 2002), Amsterdam, The Netherlands, 24-31 July 200

Interactions of rare-earth molybdates(V) of composition LnMoO4 (Ln = La, Nd, Gd, Dy, Er) with sulfur

The interaction of rare-earth molybdates of composition LnMoO4 (Ln = La, Nd, Gd, Dy, Er) with sulfur is studied. Gadolinium molybdate yields a single-phase product. Its unit cell parameters were calculated from indexing of its X-ray diffraction pattern. The thermal stability of the interaction products of LnMoO4 with sulfur is studied

Interactions of rare-earth molybdates(V) of composition LnMoO(4) (Ln = La, Nd, Gd, Dy, Er) with sulfur

The interaction of rare-earth molybdates of composition LnMoO(4) (Ln = La, Nd, Gd, Dy, Er) with sulfur is studied. Gadolinium molybdate yields a single-phase product. Its unit cell parameters were calculated from indexing of its X-ray diffraction pattern. The thermal stability of the interaction products of LnMoO(4) with sulfur is studied

Interactions of rare-earth molybdates(V) of composition LnMoO(4) (Ln = La, Nd, Gd, Dy, Er) with sulfur

The interaction of rare-earth molybdates of composition LnMoO(4) (Ln = La, Nd, Gd, Dy, Er) with sulfur is studied. Gadolinium molybdate yields a single-phase product. Its unit cell parameters were calculated from indexing of its X-ray diffraction pattern. The thermal stability of the interaction products of LnMoO(4) with sulfur is studied

Interactions of rare-earth molybdates(V) of composition LnMoO4 (Ln = La, Nd, Gd, Dy, Er) with sulfur

The interaction of rare-earth molybdates of composition LnMoO4 (Ln = La, Nd, Gd, Dy, Er) with sulfur is studied. Gadolinium molybdate yields a single-phase product. Its unit cell parameters were calculated from indexing of its X-ray diffraction pattern. The thermal stability of the interaction products of LnMoO4 with sulfur is studied

Synthesis of Molybdates Ln3MoO7

The possibility of synthesizing molybdates of composition Ln3MoO7 was studied by varying the annealing conditions and starting materials. A method for stabilizing these compounds by niobates of similar compositions is proposed. The identity and purity of the synthesis products was established by X-ray powder diffraction, infrared spectroscopy, and chemical analyses. It was found that such molybdates of light REE can be obtained by annealing in quartz ampules with subsequent annealing in a vacuum furnace

Synthesis, properties, and structure of DyMoO4

A method for obtaining DyMoO4 through the intermediate Dy 2MoO6 molybdate is proposed. The thermal stabilities of the DyMoO4 and dysprosium oxochloromolybdate DyMoO4Cl in air have been studied. The individuality and purity of the compounds obtained are demonstrated by X-ray diffraction, crystal-optical and chemical analyses, and IR spectroscopy