828 research outputs found
The Riemann-Cartan space in the O-theory
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
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
Zero mode effect in the four quark states
We calculate the masses of the four quark states which decay
dominantly into and 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 and
both are 1.4-1.5 GeV. This is close to the experimental candidates
and .Comment: 5 pages, 4 Postscript figure
To the Question of Universal Electronic Cards’ Use in the Russian Federation
The author has carried out the work to identify gaps in legal regulation and problems of law enforcement practice in the sphere of public and municipal services provided via universal electronic card, as well as analysis of prospects for the use of electronic media as a comprehensive substitute of an identity card of the citizen of the Russian Federation
The monitoring of the irregular disturbances in the arctic on the basis of the processing data of the distributed network of the geophysical observatories
The article discusses a data processing method for geomagnetic field of the earth on a distributed network of geophysical observatories. The proposed method allows to detect and monitor irregular disturbances of the geomagnetic field, evaluate their options, determine the epicenter of the occurrence of disturbances and to estimate the parameters of the epicente
Spatio-temporal data processing of automated geodynamic monitoring system
System In this paper, an approach to the organization of spatial-temporal processing of geoelectrical data in the system of automated geodynamic control is considered. It allows combining methodical, algorithmic, program and information support of the processes of collecting and processing of geodynamic information at subjects to contro
Application of a phase-measuring method in the inclinometric systems of geotechnical monitoring
The article considers the issue of the possibility of applying the phase-measuring method in inclinometric systems of geotechnical monitoring. The main problems with use of the inclinometric systems of geotechnical monitoring. The causes, causing the occurrence of angular measurement error
Determination of the preliminary phase of the facility destruction based on the resistance-acoustic method of control
The article substantiates the use of the resistance-acoustic method in problems of non-destructive testing of mechanical stresses or defects in structures of metals and alloys in natural and technical systems. The possibilities of the use of the proposed method for the potential monitored facilities were analyzed, to which the strict requirements for operational security are imposed (bearing reinforced concrete structures, bridges, radio and television towers, etc.
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