Group of Theoretical Physics

Group of theoretical Physics of the Institute of Applied Physics NASB carries out research in several branches of fundamental physics and theoretical material science. The activity in material science is closely linked with the branch of non-destructive testing developed in other laboratories of the Institute. The topic of the fundamental physics covers quantum field theory, elementary particle physics, and alternative gravity theories.

The group consist of 1 doctor of science (Ph. D), 2 candidate of science (Ph. D) and 3 post-graduate students.

RESEARCH AREAS

Perturbative and non-perturbative quantum field theory

Elementary particle physics

Spin physics in particles collisions at high energy

Cosmology and astrophysics in alternative gravity theories

Theoretical material science for non-destructive testing

SUPERVISOR

Shulyakovsky Roman Georgievich

candidate of physical and mathematical sciences (Ph.D).

tel./fax: +375 (17) 284-10-81
e‑mail: shulyakovsky@iaph.bas-net.by

C.V.

PROJECTS

The study of electromagnetic interactions of the deuteron and proton at the installation SPD accelerator NIKA (contract)

Search for new phenomena in nuclear interactions at the detector BM@N at the accelerator «Nuclotron» (in cooperation with JINR)

INTERNATIONAL COOPERATION

Joint institute for nuclear research (JINR, Dubna)

Roman G. Shulyakovsky (Ph.D)

leading researcher

Alexander S. Garkun (Ph.D)

leading researcher

Michael I. Levchuk (Ph.D)

leading researcher

Maksim N. Nevmerzhitsky

researcher

Alexey O. Shaplov

researcher

Denis A. Shohonov

junior researcher

SOME RESULTS WORKS MEMBERS OF GROUP

V.I.Kuvshinov, R.G.Shulyakovsky. Correlation signs of instantons in multigluon production processes at high energy. Acta Phys. Pol., B28, N7 (1997) 1629-1634, hep-ph/9902403.
V.I.Kuvshinov, R.G.Shulyakovsky. Gluon correlation moments ratio in the instanton field. Acta Phys. Pol., B30, N1 (1999) 69-71, hep-ph/9902379.
V.I. Kashkan, V.I. Kuvshinov, R.G. Shulyakovsky. Effect of Hadronization on the Form of Correlation Moments for Instanton Processes and Possibility of Discovering Them Experimentally. Physics of Atomic Nuclei, Vol. 65, No. 5 (2002) 925–928.
V. Kuvshinov, A. Kuzmin, R. Shulyakovsky. Chaos enforced instanton tunnelling in one-dimensional model with periodic potential. Acta Phys. Pol., B33, N7 (2002) 1721-1728.
V.I. Kuvshinov, A.V. Kuzmin, R.G. Shulyakovsky. Chaos assisted instanton tunnelling in one dimensional perturbed periodic potential. Phys. Rev. E67 (2003) 015201-1 — 015201-4.
A.Yu. Manko, R.G. Shulyakovsky. Two-Photon Production of Leptons at Hadron Colliders in Semielastic and Elastic Cases. Physics of Atomic Nuclei, Vol. 79, No. 2 (2016) 207–211.
V. Dunin, A. Gribowsky, E. Kokoulina, A. Kutov, V. Nikitin, V. Riadovikov, R. Shulyakovsky, V. Volkov, A. Vorobiev. Collective phenomena in hadron and nuclear interactions at high multiplicity. EPJ Web of Conferences 206, 03001 (2019), 10 P.
Levchuk M.I. Deuteron Compton scattering below pion photoproduction threshold / M.I. Levchuk, A.I. L’vov // Nucl. Phys. A. – 2000. – Vol. 674, No. 3–4. – P. 449–492.
Levchuk M.I. Incoherent pion photoproduction on the deuteron in the first resonance region / M.I. Levchuk [et al.] // Phys. Rev. C. – 2006. – Vol. 74, No. 1. – 014004(20).
Quasi-free Compton scattering and the polarizabilities of the neutron / M.I. Levchuk [et al.] // Eur. Phys. J. A. – 2003. – Vol. 16, No. 2. – P. 259–273.
Compton scattering from the deuteron and extracted neutron polarizabilities / M.I. Levchuk [et al.] // Phys. Rev. Lett. – 2003. – Vol. 90, No. 19. – 192501.
Neutron polarizabilities investigated by quasifree Compton scattering from the deuteron / M.I. Levchuk [et al.] // Phys. Rev. Lett. – 2002. – Vol. 88, No. 16. – 162301(4).
Incoherent pion photoproduction on the deuteron in the first resonance region / M.I. Levchuk [et al.] // Phys. Rev. C. – 2006. – Vol. 74, No. 1. – 014004(20).

Plenary and invited reports
«On some proposals to SPD spin physics program»
(International Workshop on Spin Physics Experiments at NICA /SPIN-Praha-2018/).
http://indico.jinr.ru/conferenceOtherViews.py?view=standard&confId=501
http://indico.jinr.ru/getFile.py/access?contribId=42&sessionId=10&resId=0&materialId=slides&confId=501

Minkevich A.V.; Garkun A.S.; Kudin V.I. Regular accelerating universe without dark energy in Poincare gauge theory of gravity. Classical and Quantum Gravity, 24, 5835 (2007).
Garkun A.S.; Kudin V.I.; Minkevich A.V. Analysis of regular inflationary cosmological models with two torsion functions in Poincare gauge theory of gravity. International Journal of Modern Physics A25, 2005–2022 (2010).
Minkevich A.V., Garkun A.S. Analysis of inflationary cosmological models in gauge theories of gravitation. Classical and Quantum Gravity 23, 4237 (2006).
Minkevich A.V, Garkun A.S. Homogeneous isotropic models in the metric-affine gauge theory of gravity. Classical and Quantum Gravity 17, 3045 (2000).
Minkevich A.V., Garkun A.S., Kudin V.I. On some physical aspects of isotropic cosmology in Riemann-Cartan spacetime. Journal of Cosmology and Astroparticle Physics, 2013, 03, 040 (2013).
Garkun A.S., Kudin V.I., Minkevich A.V. To theory of asymptotically stable accelerating Universe in Riemann-Cartan spacetime. Journal of Cosmology and Astroparticle Physics, 2014, 12, 027 (2014).

Dеng. T. Transport properties of n- and p-type polycrystalline BaSi2 / T. Deng, T. Suemasu, D.A. Shohonov, I.S. Samasivech, A.B. Filonov, D.B. Migas and V.E. Borisenko // Thin Solid Films. – 2018. – V. 661, №7. – P. 7 – 15.
Xu, Z. Marked enhancement of the photoresponsivity and minority-carrier lifetime of BaSi2 passivated with atomic hydrogen / Z. Xu, D. A. Shohonov, A. B. Filonov, K. Gotoh, T. Deng, S. Honda, K. Toko, N. Usami, D. B. Migas, V. E. Borisenko, and T. Suemasu // Physical Review Materials. – 2019. – V. 3, №6. – P. 065403(10).
Shohonov, D.A. Effects of lattice parameter manipulations on electronic and optical properties of BaSi2 / D.A. Shohonov, D. B. Migas, A. B. Filonov, V. E. Borisenko, R. Takabe and T. Suemasu // Thin Solid Films. – 2019. – V. 686, №10. – P. 137436(7).