The preliminary results are obtained and presented in this poster. The current study is based on luminosity, which is 33.18 1/pb.
In this work we investigate possibility to constrain SIMP-like dark matter (DM) model from the data on large scale structure of the Universe. Such DM candidates interact with ordinary matter until quite late stage of the Universe evolution. Because of that a scale of minimal size of the density inhomogeneity which DM particles can form, can be large. Due to the fact that these particles are...
Evolution of quantum systems is described by Lindblad-Franke equation for density matrix. We seek pointers of this equation: such density matrices (i.e. quantum states) that don’t change over time. Pointers are believed to be the final step in evolution of density matrices of open quantum systems and, consequently, they are expected to reveal decoherence, i.e. the process of system's loss of...
Highly granular calorimeters are proposed for the calorimeter systems of multi-purpose detectors at future lepton colliders. In particular, the ILD hadron calorimeter will be assembled from scintillator tiles read out directly by silicon photomultipliers. We have measured a response of the tile-SiPM system to minimum ionising particles emulated by electrons from radioactive source. The...
The new coordinate-tracking detector based on drift chambers to investigate muon bundles produced by ultra-high energy primary cosmic rays is being developed. The project is aimed to solve a problem of excess of muon bundles events, which increases with energies of primary particles. The reasons can be in cosmo-physical or nuclear-physical processes. Today the prototype of the detector is...
In this report features of some topological methods for baryogenesis and phase transition analysis, including models with an extended scalar sectors at finite temperatures are discuss. The first and second differential forms are implemented for the effective potential.Physical masses conditions is determined and the one-loop corrections to the dimensionless parameters of the effective...
Extensive air showers (EAS) formed as a result of the development of the nuclear-cascade process in the atmosphere are the only source of information about the flux and interaction of cosmic rays with energies above 10^15 eV. For studying of EAS in the energy range from 10^15 to 10^17 eV, the NEVOD-EAS air-shower array is being created at the Scientific and Educational Center NEVOD (MEPhI,...
This study is motivated by the phenomenon of the enhanced production of multi-strange hadrons observed for the first time by the ALICE Collaboration in high-multiplicity pp-collisions at $\sqrt{s}=7$ TeV at the LHC. We investigate this effect of strangeness enhancement in pp-collisions in the framework of the MC event generator PYTHIA 8 where the collectivity processes are taken into account...
An upgrade of the long baseline neutrino experiment T2K near detector ND280 is currently being developed with the goal to reduce systematic uncertainties in the prediction of number of events at the far detector Super-Kamiokande. The upgrade program includes the design and construction of a new highly granular fully active scintillator detector with 3D WLS fiber readout as a neutrino target....
Discussion of non-commutativity for Closed String on non-geometric background.
In quantum field theory with a mass gap correlation function between two spatially separated operators decays exponentially with the distance. This fundamental result immediately implies an exponential suppression of all higher point correlation functions, but the predicted exponent is not optimal. We argue that in a general quantum field theory the optimal suppression of a three-point...
To study muon bundles in a wide range of zenith angles and multiplicities using the NEVOD and DECOR detectors at the Scientific and Educational Center NEVOD (MEPhI, Moscow), the method of local muon density spectra (LMDS) is used. This method for estimation of the primary particle energy has rather low accuracy (σ(lgE0) ~ 0.4) due to the contribution of extensive air showers (EAS) with...
Higgs boson with the mass equal to 126 GeV was discovered in 2012 at the LHC. Now the main objective of the LHC is the investigation of Higgs boson’s properties. This state is compatible with the Standart Model of particle physics (SM) and with the predictions of the Minimal Supersymmetric Standard Model with CP violation (MSSM). The MSSM contains the large number of free parameters. In this...
The main aim of the TUS experiment is to study the Ultra High Energy Cosmic Rays (UHECR) at E ~100 EeV from the space orbit by measuring the fluorescence and Cherenkov radiation of the Extensive Air Showers (EAS). The "Lomonosov" satellite, with the TUS detector on board, was launched on solar-synchronized orbit with altitude of about 500 km on April 28, 2016. It is the first orbital telescope...
Recently Belle, BaBar, and LHCb reported on a large deviation of $R(D^{(*)})$ from the Standard Model (SM) prediction. In many theoretical attempts to explain this disagreement the new interactions, that can be of different Lorentz structure from $V-A$, are implemented. If the amplitude of the new interaction is proportional to the lepton mass, we can expect that $e$-$\mu$ lepton...
Physics program of the experiments with the CMD-3 includes precise measurement of the cross-sections of the e+e− → hadrons processes. Such measurements are necessary for the calculation of the hadronic contribution to the anomalous magnetic moment of the muon (α=(g−2)/2). Value of α is one of the great instrument for the Standard Model test. Among hadronic channels the process *e+e− →...
In the scientific-educational center NEVOD the new coordinate-tracking unit on drift chambers (CTUDC) has been created [1]. Its inclusion in the unique experimental complex allowed to significantly expand the existing possibilities for studying high-density muon bundles (up to 10 particles per square meter). During the development and operation of the first installation in the world of this...
The work is devoted to reconstruction of the energy of the cores of extensive air showers, registered by the Cherenkov Water Calorimeter NEVOD [1] and the cluster of detectors of electromagnetic and neutron components of secondary cosmic rays PRISMA-32 [2].
Cherenkov Water Calorimeter (CWC) is a pool with a volume of 2000 m3 filled with distilled water. In the pool there are 91...
