**Sh.O. EMINOV, A.Kh. KARIMOVA, E.A. IBRAHIMOVA, J.A. GULIYEV
FREE STANDING AAO NANOPOROUS MEMBRANES FOR LIQUID FILTRATION**

The method for creation of membranes of alumina (AAO) films for water filtration by anodization of aluminum foils in oxalic acid was descripted. The obtained foils were characterized by SEM and optical microscopes. The permeability measurements of the membranes have shown that the membranes are suitable for precision separation of liquid and gaseous mixtures in laboratory conditions.

**Received:**30.03.2021

**N.А. HUSEYNOV**

MONTE-CARLO STUDY OF HIGGS BOSON PRODUCTION IN ASSOCIATION WITH A SINGLE TOP QUARK AT THE LHC

MONTE-CARLO STUDY OF HIGGS BOSON PRODUCTION IN ASSOCIATION WITH A SINGLE TOP QUARK AT THE LHC

The Higgs boson production in association with a single top quark is the only channel sensitive to the sign of the Yukawa coupling constant of the top quark. Based on Monte Carlo simulation, was considered that possibility of searching for a channel pp→tHqb and offer a set of criteria for signal extraction and background suppression modulation parameter for the same phase detuning.

**Received:**10.03.2021

**Sh.Sh. AMIROV**

SPECTRUM OF LASER PULSES IN THE FIRST ORDER DISPERSION THEORY

SPECTRUM OF LASER PULSES IN THE FIRST ORDER DISPERSION THEORY

Analytic expression for the spectral density of ultra short laser pulses in metamaterials (NIM) in the first order dispersion theory was obtained. Effects of group velocity delay (GVD), the phase detuning as well as the phase modulation on the spectral density of signal wave are theoretically studied. Narrowing of the spectrum of signal wave and shift of its maxima toward smaller values of frequency with increase in the GVD are observed . At characteristic lengths differ from zero maxima of spectral density are obtained not at zero values of frequency but at its different values. It is shown, that an increase in phase detuning leads to decrease in the maxima of spectral density as well as to their shift toward larger values of frequency modulation parameter, but increase in group velocity delay leads to increase in the maxima and shift toward smaller values of frequency modulation parameter for the same phase detuning.

**Received:**01.03.2021

1. Study of wh production at LHC using different event generators

**F.N. Ahmadov, M.A. Manashov** 03

2. Four wave interaction in the constant intensity approximation

**Sh.Sh. Amirov** 08

3. Photoluminescence of Ca_{4}Ga_{2}S_{7}:Eu^{2+} compound Bi_{2}Sr_{2}Ca_{0,4}Zn_{0,6}Cu_{2}O_{у}

**B.D. Urmanov, M.S. Leonenya, P.G. Yablonski, O.B. Tagiyev, F.A. Kazimova, T.Sh. Ibrahimova** 12

4. Influence of polarization processes on polymer electric strength

**I.K. Aliyeva** 16

5. Structural phase transitions in Cu_{3}Ni_{0.5}Se_{2} crystals

**G.M. Agamirzoyeva, N.A. Aliyeva,** 21

6. Bandgap renormalization of the InSe by laser radiation

**A.H. Kazim-zade, V.M. Salmanov, A.G. Guseinov, R.M. Mamedov, S.S. Ragimov, I.I. Qurbanov,
V.N. Jafarova** 29

7. Limit relation between pseudo jacobi polynomials and hermit polynomials with a shifted argument

**Sh.M. Nagiyev** 24

8. Generalized Hamiltonian with position-dependent mass and pseudo-Jacobi oscillator

**Sh.M. Nagiyev, K.Sh. Jafarova** 33

9. Analysis of fluctuation conductivity in Y_{0,5}Cd_{0,5}Ba_{2}Cu_{3}O_{7-δ}

**V.M. Aliev, J.A. Rahimov, V.I. Eminova, G.A. Alieva** 40

10. Neutralino pair production in polarized lepton-antilepton collisions, 40

**S.K. Abdullayev, M.Sh. Gojayev, A.K. Gulayeva** 45

11. The fermi level tuning by annealing in selenium vapor and argon plasma etching of Bi_{2}Se_{3} surfaces

**S.Sh. Gahramanov, Y.A. Abdullayev, A.A. Badalov, K.M. Jafarli, N.A. Abdullayev, K.Sh. Gahramanov** 63

1. Influence of gamma radiation on the thermodynamic properties of AgCuS compounds

**Y.I. Aliyev** 03

2. Magnetic and electrical properties of magnetic semiconductors Ni_{0.25}Fe_{0.75}Cr_{2}S_{4}

**A.I. Akhmedov, А.М. Abdullayev, I.N. Ibrakhımov, М.C. Nadjafzade, M.A. Aldjanov, M.K. Khudayarova, Q.C. Sultanov** 06

3. X-ray phase diffraction analysis of functionalized carbon nanotubes

**R.G. Abaszade, R.I. Alakbаrov** 10

4. Luminescent properties of solid solutions BaFe_{12-x}Al_{x}O_{19}

**A.I. Mammadov, R.Z. Mehdiyeva, S.H. Jabarov, R.E. Huseynov** 13

5. Study of magnetic properties of iron nanoparticles

**Pashayev Faig Geydar oglu, Gasanov Arzuman Gardashchan oglu, Abdullayeva Subhane Fuzuli kizi** 17

6. Radiation effects in IrSi-Si chips

**E.A. Kerimov ** 21

7. Mathematical modeling and research of nanoparticles (Mn_{x}Zn_{1-x}Fe_{2}O_{4})_{n} , x=0, 0.25, 0.5, 0.75, 1

**Gasanov Arzuman G.** 25

8. Hydrodynamic method for analyzing the operability of electronic devices

**E.A. Kerimov, S.N. Musayeva** 31

9. Influence of gamma radiation on the electrical properties of Сu_{3}In_{5}S_{9} single crystal

**L.G. Hasanova, A.Z. Abasova ** 34

10. AB-initio study of band structure and density of states of ZnO

**V.N. Jafarova** 36

11. Investigation of the detection sensitivity of gamma rays by MSFD-3NM photodiodes and LFS scintillator

**F.I. Ahmadov, G.S. Ahmadov, Z.Y. Sadygov, A.Z. Sadigov, A.H. Mammadli, M. Holik, E. Yilmaz, S. Nuryev** 40

12. Optical properties of Bi_{2}Se_{3} and Bi_{2}Se_{3}

**Sh.K. Qudavasov, N.A. Abdullayev, J.N. Jalilli, Y.A. Abdullayev, Z.I. Badalova, I.A. Mammadova** 44

13. Minimal coupling constant of excited vector meson and baryons at finite temperature

**N. A. Nasibova** 47

14. Exact solution of the one-dimensional quantum box-like harmonic oscillator model under the von roos kinetic energy operator

**E.I. Jafarov, A.M. Mammadova and N.F. Mammadova** 50

15. Physıcs beyond the standard model – vıolatıon of lepton unıversalıty

**B.I. Mehdiyev** 59