Transcript BRFFI

Karpeichik С.V.,Kurochkin Yu.A., Mazurenko
O.N., Orlovich V.A.
The Support of Researches in the Fields
of Theoretical Physics, High Energy
Physics and Nuclear Physics by
Belarusian Republican Foundation of
Fundamental Investigations (BRFFI)
BRFFI
Content
1. What is BRFFI
2. BRFFI for researches in the fields of theoretical
physics, high energy physics and nuclear physics
3. Some results of the projects in the fields of
theoretical physics, high energy physics and nuclear
physics
Conclusion
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The general number of the projects which has been
supported in the during of the activity of the BRFFI is 93.
Among them 30 international projects with participation
of scientists from Russia - 22, Ukraine -5, Italy- 1,
France-1, Slovenia-1.
15 projects for yang scientists especially
20
0
Институт ядерных
проблем БГУ
ОИЭЯИ-Сосны НАНБ
ННУЦФЧиВЭ БГУ
ГОМЕЛЬ ГУ
Гомель ГТУ
10
БГАТУ
БГПУ
Институт математики
НАНБ
БГУ
30
Институт физики НАНБ
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Distribution of the numbers of projects on
the Institutions and Universities
40
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 B.I. Stepanov Institute of Physics of NAS – 38 проектов;
 JINER-Sosny of NAS – 15;
 Institute of the Nuclear Problems BSU – 11;
 F. Skaryna State University – 8;
 P. Suchoi Technical State University– 8;
 NC PHEP BSU – 6;
 BSU – 3;
 Institute of Mathematics of NAS – 2;
 BSPU– 1;
 BATSU– 1.

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Distribution of the numbers of projects on
the years of the realization
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Ф9-131 Fedorov F.I.
B.I. Stepanov Institute of Physics of NAS;
Nonlinear Universal Equations as a Common
Mathematical Base for Quantum Relativistic
Field Dynamics Description
 Several classes of multi-periodical soliton-like solutions and conditions of
solutions stability for universal nonlinear matrix differential equations were
found. Polynomial representation of Cartan forms for Skirme model and
solutions of equations described different particles in external flelds in the
framework of instanton approach were obtained. Linear vector
parametrization of quantum SUq and the Lorentz group was constructed.
Predictions of modified models of electro-weak interaction theory for next
generation of electron-positron colliders were calculated
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 Bogush A.A. B.I. Stepanov Institute of Physics of NAS;
 1.Ф94-072 Investigation of basic laws and characteristic properties
of kinematics and dynamics of elementary particles (Theory and
experiment).
 2. Ф96-155 Theoretical study of symmetry (asymmetry) properties
and determination of the experimentally observed characteristics of
physical systems and microobjects.
 3. Ф42-040 Development and applications of contemporary methods
for investigation of processes and effects of elementary particle
interactions as a source of information about microstructure of
matter
 4. Ф98-229 The algebraic structure of physical spaces and
characteristics particles and processes their interactions.
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 A new approach to the q-deformation procedure of the simplest classical symmetry
groups and their Lee algebra's, based on the use of the special composition rule for
group vector-parameters and corresponding linearity relations, is developed. In the
framework of the earlier constructed axiomatic theory of the vectors of space of
constant curvature, a new mathematical apparatus for description of the models of
compound physical systems is developed. An approach to the solution of the
quantum-mechanical Kepler problem in the spaces of constant curvature, which is
the same for all spaces and is based on the use of the algebras of conserved
operators, is formulated. A covariant algebraic formulation of the conversation law of
the total relativistic angular momentum for arbitrary continuous systems, based on
the earlier elaborated operations of relativistic vector algebra, is derived. In the
framework of the two-dimensional conformal invariant field theory over hyperbolic
complex numbers the Virasoro algebra relations are derived by using operators
formalism; the new discrete symmetry operation which leads to the change of sign of
the central charge is found. The new tests for violation of the combined parity (CPsymmetry) conservation in the leptonic sector of the Standard Model is established.
The new experimental restrictions on the values of high energy cosmic neutrino flows
are obtained in the framework of the international scientific collaboration EAS-TOP
(Gran Sasso, Italy). The new adequate theoretical models are proposed for
description of both elastic and inelastic Compton scattering of photons on deuterons,
which are used in new experiments on the measurements of neutron polarizabilities.
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The leaders of other projects which has been
realized in the B.I, Stepanov Institute of Physics
are Tomil’chik L.M., Rudak E.A., Kilin S.Ya,
Levchuk M.I.,Kurochkin Yu.A., Khilimanovich
A.M., Redkov V.M. Marcynkevich B.A., Berestov
A.V., Tolkachev E.A., Korbut T.N., Satsunkevich
I.S., Shulyakovsky R.G.Bukach A.A.
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 Ф06-129 Phenomenological models with noneuclidean metric for astrophysics and
physics of quantum-size structures. Tomilchik L.M.
 It is shown that the anomalous violet frequency shift discovered in signals from the
spacecrafts Pioneer 10/11 can be interpreted as the local manifestation of the
cosmological expansion. Supposing the quadratic coordinate dependence of the
conformally flat metric the exactly solvable two-dimensional analogs of Klein-Gordon
and Dirac equations with the coordinate-dependent mass are obtained. A consistent
one-particle theory of motion of spinning test particles in gravitational fields is
developed on base of Foldy-Wouthuysen representation. A calculation of observable
effects of gravitational interaction of relativistic spinning particles and their spins is
carried out by example of rotating and uniformly accelerated frames. Within the
framework of the scalar-tensor gravitational theory in Minkowski space-time the
approximate field equations solutions are obtained and used for description of test
particle motion effects and cosmological expansion. The energy spectrum and wave
functions for a three-dimensional quantum dot are obtained in a quantum-mechanical
model with the negative space curvature. The description of the triplet states of
quarkonium is given in model with the positive curvature of relative space with correct
account of the spin interactions
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 Ф05-168
 Investigation of nucleon Compton scattering in the framework of the linear σ-model
and dispersion relations Levchuk M.I. B.I. Stepanov Institute of Physics of NAS
 In the framework of the linear σ-model, the amplitude of nucleon Compton scattering
is analyzed and nucleon structure constants are calculated. The difference of the
nucleon polarizabilities is calculated making the use of the dispersion relations with
allowance for s- and t-channel contributions. To saturate the dispersion integrals, the
most modern experimental information on the amplitudes for the reactions gg -> pp
and pp -> NN. Our result for difference of the nucleon polarizabilities is in good
agreement with experimental value. Unpolarized and polarized observables in all
channels of the reaction d(g,p)NN are calculated. We find satisfactory description of
available experimental data. A comparison with predictions of other works is given.
 Review of Particle Physics, v. 33, 2006 p. 954 – 965.
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 Ф05-212
 The effects of monopole connections. Theory and experiment. Kurochkin Yu.A. B.I.
Stepanov Institute of Physics of NAS
 In the framework of the two potentials formulation of the equations of classical
electrodynamics their new solutions (equations of zero field) are obtained. A new kind
of the duality between potentials and sources electrical and magnetic type which
differs from standard duality of the Maxwell equations with two sources is set up. The
quantum mechanical scattering problem of charged particle by the dual charged
Coulomb field in the space of constant negative curvature 1S3 is considered. In the
case of the dyon potential with an additional centrifugal term (MIC-Kepler problem),
the exact solution of the Schrodinger equation in parabolic coordinates is used to
determine the scattering amplitude and expression for the differential cross section.
Regge-analysis of the scattering amplitude is realized. It has been set up that for
searching of the magnetic monopoles in the experiments on the modern accelerators
the two photons mechanism of the creation of the monopole-antimonopole pairs
should be taking in to account. On the base of the heuristic dual symmetry arguments
the cross section of the creation of the monopole-antimonopole pairs are estimated in
the propositions of the 0, 1/2, 1 monopole spins
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The leaders of the projects which has been
realized in the JINER-Sosny of NAS
are Kuvshinov V.I., Babichev L.F., Galynsky
M.V., Sukhovitsky E.Sh., Kuz’min A.V.
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 Ф04-307
 Investigation of the parton-hadron phase transition in processes occurring with quarkgluon plasma formation Babichev L.F. JINER-Sosny of NAS
The generalized Ginzburg-Landau model have been developed for study of the
parton-hadron phase transition effect on multiplicity fluctuations, on effects of
intermittency and jet quenching and calculation of different correlation characters for
processes with large power denseness on reacting and building accelerators. It is
shown that for the consent with modern experimental data, at description of the QGP
? hadron phase transition it is necessary to use the potential implementing
catastrophe "assembly" in squeezed state representation. It is shown that
dependence on generalized Ginzburg-Landau model parameters weakens with
growth of the squeezing factor. It is carried out fitting of the experimental data of the
NA36 and STAR collaborations on multiplicity distributions with use of the software
package MINUIT and theoretical model. Optimal parameters of model are supervised
at which effects of a temperature hysteresis and jet quenching, inherent a QuarkGluon plasma, are observed. Results obtained have fundamental scientific character
and are oriented on applications at study of the possibility of originating of a new
condition of substance - a Quark-Gluon plasma
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The leaders of the projects which has been
realized in the Institute of the Nuclear Problems
BSU
are Baryshevsky V.G., Maksimenko S.A.,
Borodich A.I.,Korzhik M.I.,Metelica O.N., Shuba
M.V., Bondarev I.V., Drobyshev G.Yu.,
Radionova V.N.
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 Ф06Р-074
 Neutron optics of the noncentrosymmetric crystals near the condition of the Bragg
reflection and new methods of a search for the electric dipole moment of a neutron
and an investigation of T-odd interactions of the neutron with a nucleus. Baryshevsky
V.G. Institute of the Nuclear Problems BSU
 The theory describing contributions of the neutron electric dipole moment (EDM) and
T-noninvariant nuclear interactions to the dichroism and the angle of spin rotation of
the neutron diffracting into the noncentrosymmetric crystals is developed. The
restrictions to the value of the EDM and constants of T-odd nuclear interactions are
obtained. Perspectives of growing crystals possessing parameters better than that of
the quartz are investigated and specific crystals are suggested to perform the
experiment. The method of ah improvement of conditions for the observation of P-, Tnoninvariant neutron spin rotation due to the modulation of signal by an external
alternate magnetic field is developed which can also be used for modernization of the
experimental setup. Comparative analysis of influence of the Earth's rotation onto the
experiment in a search of the neutron EDM with the crystal diffraction method and
onto experiments with ultra cold neutrons is fulfilled
BRFFI
The leaders of the projects which has been
realized in the NC PHEP BSU
are Shumeiko N.M., Baturickii M.A., Zyazyulya
F.E.
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 Ф06-331 An investigation of the one- and two-boson muon pair creation mechanisms
taking into account experimental conditions at the Large Hadron Collider. Shumeiko
N.M. NC PHEP BSU
 The cross section of the Drell-Yan process has been calculated taking into account
first-order electroweak radiative corrections. The contribution of hard and soft
photons has been considered using the Bardin-Shumeiko approach. The radiative
corrections include the contribution of self-energies, vertices, two-boson exchange,
hard and soft photon emission. The first-order electroweak radiative correction to the
cross section of the Drell-Yan process grows with the increasing of the invariant mass
of the muon pair, reaching at M = 6 TeV, approximately -20%. An analytical
evaluation of the cross section for the two-boson muon pair creation process has
been carried out. It has been found that in the range 100 GeV < М < 5 TeV, the cross
section of the Drell-Yan process exceeds the cross section of the two-boson muon
pair creation process two orders of magnitude on average. The codes READYGEN
(FORTRAN) and LePaProGen (C++) for dealing with the generation of radiative
events in Drell-Yan process have been created. The code TBEX (FORTRAN) for
dealing with the generation of lepton pair creation through the two-photon exchange
mechanism has been developed
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The leaders of the projects which has been
realized in the Gomel F. Skaryna State
University
are Maksimenko N.V., Andreev V.V.
 It is ground standings that the properties of polarizabilities of hadrons are generally
determined by tensor builders, the nonrelativistic Hamiltonian of interaction of an
electromagnetic field with hadrons with spins nonzero is constructed. For an
estimation of an electrical polarizability of a pi meson is advanced diagrammaticquark the approach and the equation of motion of scalar quarks in an electric field is
obtained on the basis of effective Lagrangians of interaction of an electromagnetic
field with polarized hadrons. Are showed that in the relativistic Hamiltonian dynamics
(RHD) of wave functions of composite systems maintain probability interpretation.
The analysis and coordination of parameters with relativistic quark, model obtained in
other forms of dynamics is made. Within the framework of Poincare covariant quark
model, based on the point form of dynamics of relativistic quantum mechanics, the
two-photon decay of pi meson is calculated. The restrictions on parameters of model
with usage of the combined analysis of lepton and two-photon decays of pi mesons
are obtained.

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 Ф98-105
 Investigation of the electromagnetic properties of hadrons in two-photon processes
 Maksimenko N.V. Gomel F. Skaryna SU
 It is ground standings that the properties of polarizabilities of hadrons are generally
determined by tensor builders, the nonrelativistic Hamiltonian of interaction of an
electromagnetic field with hadrons with spins nonzero is constructed. For an
estimation of an electrical polarizability of a pi meson is advanced diagrammaticquark the approach and the equation of motion of scalar quarks in an electric field is
obtained on the basis of effective Lagrangians of interaction of an electromagnetic
field with polarized hadrons. Are showed that in the relativistic Hamiltonian dynamics
(RHD) of wave functions of composite systems maintain probability interpretation.
The analysis and coordination of parameters with relativistic quark, model obtained in
other forms of dynamics is made. Within the framework of Poincare covariant quark
model, based on the point form of dynamics of relativistic quantum mechanics, the
two-photon decay of pi meson is calculated. The restrictions on parameters of model
with usage of the combined analysis of lepton and two-photon decays of pi mesons
are obtained.


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The leaders of the projects which has been
realized in the Gomel P. Suchoi Technical State
University
are Solovtsov I. L , Pankov A.A., Solovtsova
O.P., Kakoulina E.P., Tsytrinov A.
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 Ф06Д-002
 Hadronic processes of perturbative and nonperturbative quantum chromodynamics.
 Solovtsov I.L. P. Suchoi Technical State University
 The purpose of research consists in development a method of chromodynamical
description of hadronic processes at low energies beyond the standard perturbation
theory. A new approach, based on the analytic perturbation theory in QCD, taking
into account the nonperturbative character of the light quark masses and involving a
summation of quark threshold singularities, was developed. It was shown that the
suggested method allows one to evaluate well the hadronic contributions to various
physical quantities both in the spacelike, and in the timelike regions. In the deep
inelastic lepton-hadron scattering, this method allows to provide correct analytic
properties of integrals from the structure functions. It was shown that within the
method suggested the optimal values of these lower dimension condensates are lose
to zero. A new developed approach expands an area describing within
chromodynamics of strong interaction processes of elementary particles that allows
one to use the results obtained for the further quantum chromodynamics testing in
the field of intermediate and low energies and, in particular, investigate in more
details the evolution of the invariant charge and nonperturbative effects
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The leaders of the projects which has been
realized in BSU and other Universities
are Feranchuk I.D., Boyarkin O.M., Ryabushko
A.P., Pletyuhov V.A.
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Международные конференции
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In the framework of the several BRFFI projects has been realized
basic investigations for eliminations of the negative influences of
Chernobyl accident,
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Conclusion
The activity of the BRFFI is very useful for
scientific community of Belarus’
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Thank you for your attention