424 research outputs found
The Field Theory of Gravitation and The Rest Mass of Particles
It is shown in this work that all free physical fields should have a nonzero
rest mass according to the field theory of gravitation.Comment: 4 page
How Were the Hilbert--Einstein Equations Discovered?
The pathways along which A. Einstein and D. Hilbert independently came to the
gravitational field equations are traced. Some of the papers that assert a
point of view on the history of the derivation of the gravitational field
equations ``that radically differs from the standard point of view'' are
critically analyzed. It is shown that the conclusions drawn in these papers are
completely groundless.Comment: 40 pages, misprints remove
Impossibility of Unlimited Gravitational Collapse
It is shown that the gravitational field, as a physical field developing in
the Minkowsky space, does not lead to unlimited gravitational collapse of
massive bodies and, hence, excludes a possibility of the formation of the
``black holes''.Comment: 6 page
On gravitational flow in the Relativistic Theory of Gravitation
A definition of the gravitational flow and a short description of the recipe
of its calculation are presented.Comment: 6 page
Gravitational Waves in Relativistic Theory of Gravitation
It is shown that, in the framework of Relativistic Theory of Gravitation with
massive graviton, gravitational waves, due to the causality condition, do not
bear negative energy flows.Comment: 4 page
Mass for the graviton
Can we give the graviton a mass? Does it even make sense to speak of a
massive graviton? In this essay I shall answer these questions in the
affirmative. I shall outline an alternative to Einstein Gravity that satisfies
the Equivalence Principle and automatically passes all classical weak-field
tests (GM/r approx 10^{-6}). It also passes medium-field tests (GM/r approx
1/5), but exhibits radically different strong-field behaviour (GM/r approx 1).
Black holes in the usual sense do not exist in this theory, and large-scale
cosmology is divorced from the distribution of matter. To do all this we have
to sacrifice something: the theory exhibits {*prior geometry*}, and depends on
a non-dynamical background metric.Comment: 12 pages, plain LaTeX. Major revisions: (1) Inconsistency in
equations of motion fixed. (2) More discussion of the problems associated
with quantization. (3) Many more references adde
Novel features of diffraction at the LHC
Interest and problems in the studies of diffraction at LHC are highlighted.
Predictions for the global characteristics of proton-proton interactions at the
LHC energy are given. Potential discoveries of the antishadow scattering mode
and diffractive scattering conjugated with high-- jets are discussed.Comment: 10 pages, 7 figures, journal version, 1 figure added, extended
introductio
Hamiltonian anomalies of bound states in QED
The Bound State in QED is described in systematic way by means of nonlocal
irreducible representations of the nonhomogeneous Poincare group and Dirac's
method of quantization. As an example of application of this method we
calculate triangle diagram . We show that
the Hamiltonian approach to Bound State in QED leads to anomaly-type
contribution to creation of pair of parapositronium by two photon.Comment: 12 pages, 2 figures. Proceedings of the conference "Symmetry Methods
in Physics XV", July 12-16, 2011, Dubna, Russi
Bose-Einstein condensed supermassive black holes: a case of renormalized quantum field theory in curved space-time
This paper investigates the question whether a realistic black hole can be in
principal similar to a star, having a large but finite redshift at its horizon.
If matter spreads throughout the interior of a supermassive black hole with
mass , it has an average density comparable to air and it may
arise from a Bose-Einstein condensate of densely packed H-atoms. Within the
Relativistic Theory of Gravitation with a positive cosmological constant, a
bosonic quantum field describing H atoms is coupled to the curvature scalar
with dimensionless coupling . In the Bose-Einstein condensed groundstate
an exact, self-consistent solution for the metric occurs for a certain large
value of , quadratic in the black hole mass. It is put forward that
is set by proper choice of the background metric as a first step of a
renormalization approach, while otherwise the non-linearities are small. The
black hole has a hair, the binding energy. Fluctuations about the ground state
are considered.Comment: 18 pages Latex Physica E styl
New analytic unitarization schemes
We consider two well-known classes of unitarization of Born amplitudes of
hadron elastic scattering. The standard class, which saturates at the black
disk limit includes the standard eikonal representation, while the other class,
which goes beyond the black-disk limit to reach the full unitarity circle,
includes the U matrix. It is shown that the basic properties of these schemes
are independent of the functional form used for the unitarisation, and that U
matrix and eikonal schemes can be extended to have similar properties. A common
form of unitarisation is proposed interpolating between both classes. The
correspondence with different nonlinear equations are also briefly examined.Comment: 6 pages, 10 figures, corrected typos, 1 fig. redro
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