1,062 research outputs found

    The Riemann-Cartan space in the O-theory

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    Nonrelativistic equation of particle with a spin for the Lagrangian on a nonassociative algebra is obtained. It is shown that in this model arises Riemann-Cartan space. In the case of central symmetry in addition to the pseudo-curvature appears torsion as pseudovector that interacts with the spin of the particle. An estimation of the influence of torsion on the strength of gravitational attraction in the central gravitational field is given.Comment: 12 page

    Spontaneous symmetry breaking for long-wave gravitons in the early Universe

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    It is shown that nonlinear terms in equations of gravitons on the background of curved space-time of the expanding Universe can solve the problem of the negative square of the effective mass formally arising in linear approximation for gravitons. Similar to well known spontaneous breaking of symmetry in Goldstone model one must take another vacuum so that nonzero vacuum expectation value of the quantized graviton field leads to change of spectrum for gravitons. There appears two graviton fields, one with the positive mass, another with the zero mass. Energy density and the density of particles created by gravitation of the expanding Universe are calculated for some special cases of the scale factor. Numerical results are obtained for the dust universe case.Comment: 13 page

    Absolute Calibration of a Large-diameter Light Source

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    A method of absolute calibration for large aperture optical systems is presented, using the example of the Pierre Auger Observatory fluorescence detectors. A 2.5 m diameter light source illuminated by an ultra--violet light emitting diode is calibrated with an overall uncertainty of 2.1 % at a wavelength of 365 nm.Comment: 15 pages, 8 figures. Submitted to JINS

    Information-hardware support of systems of the automated electromagnetic monitoring of geodynamic objects

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    In article the structure of an informational-hardware support of the automated system of data processing at electromagnetic monitoring of geodynamic objects is considered. The structure of interrelations of the object-oriented and serving subsystems realizing methodological, program and technical and information support of processes of filing and data processing of geodynamic monitoring is define

    Zero mode effect in the 1+1^{-+} four quark states

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    We calculate the masses of the 1+1^{-+} four quark states which decay dominantly into ρπ\rho\pi and ηπ\eta\pi respectively by QCD sum rules approach. We include the zero mode contribution and find it plays an important role in the sum rules. We predict that the masses of the states ηπ\eta\pi and ρπ\rho\pi both are 1.4-1.5 GeV. This is close to the experimental candidates π1(1370)\pi_1(1370) and π1(1440)\pi_1(1440).Comment: 5 pages, 4 Postscript figure

    METHODOLOGY OF MEASUREMENT THE HUMAN CAPITAL

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    This paper proposes a methodological approach to the measurement of human capital on the basis of the life cycle model. The algorithm of the measurement of human capital using the Verhulst equation

    METHODOLOGY OF MEASUREMENT THE HUMAN CAPITAL

    Get PDF
    This paper proposes a methodological approach to the measurement of human capital on the basis of the life cycle model. The algorithm of the measurement of human capital using the Verhulst equation

    Conductivity in Two-Dimensional Disordered Model with Anisotropic Long-Range Hopping

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    We consider two-dimensional system of particles localized on randomly distributed sites of squared lattice with anisotropic transfer matrix elements between localized sites. By summing of "diffusion ladder" and "cooperon ladder" type vertices we calculated the conductivity for various sites and particles densities.Comment: Latex, 10 page
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