Научные статьи: Recent submissions

  • A measurement of the K+→π+μ+μ− decay 
    Cortina Gil, E.; Kleimenova, A.; Minucci, E.; Padolski, S.; Petrov, P.; Shaikhiev, A.; Volpe, R.; Numao, T.; Petrov, Y.; Velghe, B.; Wong, V. W. S. (Journal of High Energy Physics, 2022)
    A sample of 2.8×104 K+→π+μ+μ− candidates with negligible background was collected by the NA62 experiment at the CERN SPS in 2017--2018. The model-independent branching fraction is measured to be (9.15±0.08)×10−8, a factor ...
  • A holographic bound for D3-brane 
    Momeni, Davood; Faizal, Mir; Myrzakul, Aizhan; Bahamonde, Sebastian; Myrzakulov, Ratbay (Eurasian Physical Technical Journal C, 2017)
    In this paper, we will regularize the holographic entanglement entropy, holographic complexity and fidelity susceptibility for a configuration of D3-branes. We will also study the regularization of the holographic ...
  • Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications 
    Suchikova, Yana; Kovachov, Sergii; Bohdanov, Ihor; Karipbayev, Zhakyp T.; Zhydachevskyy, Yaroslav; Lysak, Anastasiia; Pankratov, Vladimir; Popov, Anatoli I. (Materials, 2024)
    This study introduces an innovative method for synthesizing Cadmium Oxide /Cadmium Sulfide/Zinc Oxide heterostructures (CdO/CdS/ZnO), emphasizing their potential application in solar energy. Utilizing a combination of ...
  • Quintessence-like features in the late-time cosmological evolution of f(Q) symmetric teleparallel gravity 
    Myrzakulov, N.; Koussour, M.; Mussatayeva, A. (Chinese Journal of Physics, 2023)
    In this study, we investigate the cosmological history within the framework of modified f(Q) gravity, which proposes an alternative theory of gravity where the gravitational force is described by a non-metricity scalar. ...
  • Constraining the f(R,T)=R+2λT cosmological model using recent observational data 
    Myrzakulov, N.; Koussour, M.; Alfedeel, Alnadhief H. A.; Hassan, E. I. (Chinese Physics C, 2023)
    In this paper, we consider a comprehensive investigation of the cosmological model described by f(R,T)=R+2λT (where λ represents a free parameter) in light of the most recent observational data. By constraining the model ...
  • Cosmological constraints on dark energy in f(Q) gravity: A parametrized perspective 
    Mussatayeva, A.; Myrzakulov, N.; Koussour, M. (Physics of the Dark Universe, 2023)
    In this paper, we focus on the parametrization of the effective equation of state (EoS) parameter within the framework of f(Q) symmetric teleparallel gravity. Here, the gravitational action is represented by an arbitrary ...
  • A new f (Q) cosmological model with H (z) quadratic expansion 
    Myrzakulov, N.; Koussour, M.; Jyoti Gogoi, Dhruba (Physics of the Dark Universe, 2023)
    We present a new f(Q) cosmological model capable of reproducing late-time acceleration, i.e. f(Q)=λ0(λ+Q)n by supporting certain parametrization of the Hubble parameter. By using observational data from Hubble, Pantheon, ...
  • Primordial non-Gaussianity from ultra slow-roll Galileon inflation 
    Choudhury, Sayantan; Karde, Ahaskar; Panda, Sudhakar; Sami, M. (Journal of Cosmology and Astroparticle Physics, 2024)
    We present a detailed study of the generation of large primordial non-Gaussianities during the slow-roll (SR) to ultra-slow roll (USR) transitions in the framework of Galileon inflation. We found out that due to having ...
  • Quasinormal modes and phase structure of regular AdS Einstein–Gauss–Bonnet black holes 
    Myrzakulov, Yerlan; Myrzakulov, Kairat; Upadhyay, Sudhaker; Singh, Dharm Veer (International Journal of Geometric Methods in Modern Physics, 2023)
    In this paper, we present an exact regular black hole solution in Einstein–Gauss–Bonnet coupled with nonlinear matter fields. It is a generalization of a regular Einstein–Gauss–Bonnet black hole in 5 DAdS spacetime. ...
  • Galileon inflation evades the no-go for PBH formation in the single-field framework 
    Choudhury, Sayantan; Panda, Sudhakar; Sami, M. (Journal of cosmology and astroparticle physics, 2023)
    We consider Galileon inflation in the Effective Field Theory (EFT) framework and examine the possibility for PBH formation during slow roll (SR) to ultra slow roll (USR) transitions. We show that loop corrections to the ...
  • A new Om(z) diagnostic of dark energy in general relativity theory 
    Myrzakulov, N.; Koussour, M.; Jyoti Gogoi, Dhruba (The European Physical Journal C, 2023)
    In this paper, we propose a new parametrization of dark energy based on the Om(z) diagnostic tool behavior. For this purpose, we investigate a functional form of the Om(z) that predicts the popular dark energy dynamical ...
  • Weak Deflection Angle, Greybody Bound and Shadow for Charged Massive BTZ Black Hole 
    Upadhyay, Sudhaker; Mandal, Surajit; Myrzakulov, Yerlan; Myrzakulov, Kairat (Annals of Physics, 2023)
    We provide a discussion on a light ray in a charged black hole solution in massive gravity. To serve the purpose, we exploit the optical geometry of the black hole solution and find the Gaussian curvature in weak gravitational ...
  • Kinetic Axion Dark Matter in String Corrected f(R) Gravity 
    Oikonomou, V.K.; Fronimos, F.P.; Tsyba, Pyotr; Razina, Olga (Physics of the Dark Universe, 2023)
    Under the main assumption that the axion scalar field mainly composes the dark matter in the Universe, in this paper we shall extend the formalism of kinetic axion R2 gravity to include Gauss-Bonnet terms non-minimally ...
  • Discrete Symmetry Transformations on Non-Abelian Gauge Fields 
    Lahiri, Amitabha; B. Pal, Palash; Shokova, Marina (The Physics Educator, 2023)
    All gauge bosons of a non-abelian gauge theory do not transform the same way under the discrete transformations of time-reversal and charge-conjugation. Moreover, the transformations rules depend on how the generators are ...
  • Detector array for the 7H nucleus multi-neutron decay study 
    Bezbakh, A. A.; Belogurov, S. G.; Chudoba, V.; Fomichev, A. S.; Gorshkov, A. V.; Grigorenko, L. V.; Kaminski, G.; Khirk, M. S.; Knyazev, A. G.; Krupko, S. A.; Mauyey, B.; Muzalevskii, I. A.; Nikolskii, E. Yu.; Quynh, A. M.; Sharov, P. G.; Slepnev, R. S.; Stepantsov, S. V.; Ter-Akopian, G. M.; Wolski, R. (Physics of Particles and Nuclei Letters, 2023)
    Setup fitting the requirements for the detailed study of the five-body decay of the 7H nucleus obtained as a result of the proton transfer from the 8He projectiles to the deuterium target nuclei is being built at the ...
  • Resonant behavior of the pp → {pp} s π 0 reaction at the energy s = 2.65 GeV 
    Tsirkov, Dmitry; Baimurzinova, B.; Komarov, V.I.; Kulikov, A.V. (arXiv, 2023)
    We report on measurements of the differential cross section dσ/dΩ in the energy region of s=2.5–2.9GeV of the reaction pp→{pp}sπ0, where {pp}s is a S01 proton pair. The experiment has been performed with the ANKE spectrometer ...
  • Shadow of the 5D Reissner-Nordstr¨om AdS Black Hole 
    Mandal, Surajit; Upadhyay, Sudhaker; Myrzakulov, Yerlan; Yergaliyeva, Gulmira (arXiv, 2022)
    We discuss the shadow cast by the charged Reissner-Nordstr¨om (RN) AdS black hole. With the help of Killing equation and Hamilton-Jacobi equation, we calculate the geodesic equations for null particle. With the help of ...
  • Cosmology in f(Q) gravity: A unified dynamical system analysis at background and perturbation levels 
    Khyllep, Wompherdeiki; Dutta, Jibitesh; Saridakis, Emmanuel N.; Yesmakhanova, Kuralay (arXiv, 2022)
    Motivated by the fact that cosmological models based on f(Q) gravity are very efficient in fitting observational datasets at both background and perturbation levels, we perform a combined dynamical system analysis of both ...
  • The Oscillatory Universe, phantom crossing and the Hubble tension 
    Sharma, Mohit K.; Jas Pacif, Shibesh Kumar; Yergaliyeva, Gulmira; Yesmakhanova, Kuralay (arXiv, 2022)
    We investigate the validity of cosmological models with an oscillating scale factor in relation to late-time cosmological observations. We show that these models not only meet the required late time observational ...
  • Anisotropic f (Q) gravity model with bulk viscosity 
    Koussour, M.; Shekh, S. H.; Bennai, M.; Myrzakulov, N. (arXiv, 2024)
    This study investigates the dynamics of a spatially homogeneous and anisotropic LRS Bianchi typeI universe with viscous fluid in the framework of f(Q) symmetric teleparallel gravity. We assume a linear form for f(Q) and ...

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