Projects
Studies of the Dzhelepov Laboratory of Nuclear Problems (DLNP) are related to physics of particles and nuclei, condensed-matter physics, accelerator physics, techniques of physical experiments, and to applied and biomedical research.
The distinctive feature of the laboratory is studies in the field of neutrino physics and astrophysics. The Baikal-GVD megascience project is a continuation of constructing the gigaton volume neutrino telescope at Lake Baikal to do research in the field of multi-messenger astronomy and applied research, to study fundamental properties of the most energetic cosmic neutrinos, and to indirectly search for galactic dark matter.
The DLNP scientists take an active part in the large international projects: ATLAS, JUNO, LEGEND, COMET, NOvA, TAIGA, etc.
New basic facilities were put into operation: the LINAC-200 linear accelerator and spectrometric cluster. The construction of the MSC-230 superconducting compact proton cyclotron for solving medical and applied problems began. The DLNP staff members actively participate in the creation of the SPD detector for the NICA collider.
JINR large research-and-development infrastructure
The Spin Physics Detector is a planned experimental setup at the NICA collider is intended to study the spin structure of the proton and deuteron and the other spin-related phenomena with polarized proton and deuteron beams at a collision energy upto 27 GeV and a luminosity up to $10^{32}$ $сm^{-2}$ $с^{-1}$.
The Baikal-GVD project is aimed at the further development of the gigaton-scale neutrino telescope for research in multimessenger astronomy, study of fundamental properties of the most energetic cosmic neutrinos, indirect search for galactic dark matter, and applied research.
Particle physics and high-energy heavy-ion physics
The main purpose of the international ATLAS experiment is investigation of proton-proton interactions at unprecedented energies at the LHC collider (from 7 to 14 TeV).
The goals of the JINR group in the BESIII project are to study hadronic QCD spectra and search for exotic states, study the production and decays of Charmonium states, search for exotic Charmonium states and charmonium-like structures, and determine c-quark fragmentation functions. The JINR group's participation in the project involves data analysis and development of algorithms for event reconstruction in the BESIII detector using machine learning methods.
AMBER (Apparatus for Meson and Baryon Experimental Research) is a new experimental facility with a fixed target on the M2 beam line of the CERN SPS. The facility is designed to perform a variety of measurements aimed at addressing fundamental questions of quantum chromodynamics, which are expected to lead to a significant improvement in the understanding of QCD as a modern theory of strong interactions.
The discovery of the Higgs boson at the LHC marked the beginning of a new era in high-energy physics.
The proposed 100-km-circumference Circular Electron-Positron Collider (CEPC) program in China aims to make unprecedentedly precise measurements of the Higgs boson, test the predictions of electroweak theory, flavor physics, QCD, and explore new physics beyond the Standard Model (BSM).
Measurement of the neutrino mass hierarchy in the long baseline reactor experiment. Precise determination of the parameters of neutrino oscillations. Study of neutrino fluxes from various sources: the Sun, The Earth and others.
Measurement of the neutrino mass hierarchy, CP violation and other parameters of neutrino oscillations in the NOvA and T2Klong-baseline accelerator experiments. Study of tau leptons production via $D_{s}$ meson production and decay in proton-nucleus collisions at 400 GeV/c (the DsTau experiment). Study of high-energy neutrino properties in the range of ~100 GeV - 3 TeV at the LHC collider in CERN (the FASER experiment). Search for new particles and exotic reactions. Estimation of neutrino interaction cross-sections.
Investigation of gamma radiation and charged cosmic rays (CRs) in the energy range of $10^{13}$−$10^{18}$ eV by detecting Cherenkov radiation from extensive air showers (EAS): studying the high-energy edge of the spectrum of the brightest galactic and extragalactic sources of gamma radiation, searching for galactic PeVatrons, applying a new hybrid approach to study mass composition of CRs in the range of $10^{14}$-$10^{17}$ eV, studying of CRs anisotropy in the energy range of 100 - 3000 TeV.
The COMET experiment seeks to measure the neutrinoless coherent transition of a muon to an electron in the field of an aluminium nucleus.
Nuclear physics
The project combines the experiments DANSS, Ricochet and νGeN focused on the study of antineutrino fluxes from nuclear reactors at distances of less than 20 m. The experiments are united by a common area of research, by scientific problems overlapping and coinciding in many respects and by the ways to solve them. In addition, these studies are united by the common JINR staff and infrastructure resources.
The project is aimed at developing methods of nuclear spectroscopy and radiochemistry for the use in nuclear medicine, astrophysics and neutrino physics. The project involves novel techniques for particle detection, calibration of experimental facilities, determination of background and also the design of uniquely pure materials, etc., as well as development of methods for nuclear medicine – such as production and purification of radioisotopes, development and synthesis of radiopharmaceuticals, study of mechanisms affecting the tissues at radionuclide decay locations, etc.
The project comprises six main experiments: LEGEND (Large Enriched Germanium Experiment for Neutrinoless double betaDecay), TGV (Telescope Germanium Vertical), SuperNEMO (Neutrino Ettore Majorana Observatory), MONUMENT (MuonOrdinary capture for the NUclear Matrix elemENTs), Zr-BNO, and Se-LSM.
Physics and technology of charged particle accelerators
Scientific and methodological studies of elementary particle detectors are a necessary condition for the progress of nuclear physics and high energy physics.
The implementation of the project is aimed at long-term monitoring of the behaviour of the base of the collider (NICA) to track critical design changes that can cause beam deviations from the calculated orbits.
Applied research in the field of solids by PAS methods and the development of experimental techniques using these methods are among the goals of the project.
The main goal of the project "Novel semiconductor detectors for fundamental and applied research" is the development and methodological study of a new class of physical devices - hybrid pixel semiconductor detectors operating in the mode of counting individual particles.
Experimental study of one-spin asymmetries in the production of various light particles using a pion beam with an energy of 28 GeV at the first stage, and the study of one-spin and two-spin asymmetries in dozens of reactions, including those with theformation of charmonium, using a polarized proton beam (SPASCHARM project).
The project is aimed at creating the medical superconducting cyclotron MSC-230 and the infrastructure for radiobiologicalstudies. The project implementation will allow continuing at a new level the research in proton-beam therapy, conducted withproton beams of the Phasotron at DLNP JINR over decades. The planned high intensity of the proton beam — with themaximum current of 1 μA in the continuous mode and of 10 μA in the pulsed mode — will allow to research the new FLASHtherapy method.
Radiation research in life sciences
Study of the mechanisms of adaptation of extremophilic organisms to physicochemical stresses and their use to protect other organisms.