E. Khramov
A5062413401- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Radio Astronomy Observations and Technology
- Distributed and Parallel Computing Systems
- Radiation Detection and Scintillator Technologies
- Gamma-ray bursts and supernovae
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- advanced mathematical theories
- Muon and positron interactions and applications
- Advanced Data Storage Technologies
- Astronomical Observations and Instrumentation
- Atmospheric Ozone and Climate
- Superconducting Materials and Applications
- Superconducting and THz Device Technology
- Atomic and Subatomic Physics Research
- Structural Analysis of Composite Materials
Joint Institute for Nuclear Research
2014-2023
Institute for Nuclear Research
2021-2023
Irkutsk State University
2021-2023
Comenius University Bratislava
2021-2023
Czech Technical University in Prague
2021-2023
The University of Adelaide
2013-2022
Boğaziçi University
2021-2022
Polish Academy of Sciences
2021
Nizhny Novgorod State Technical University
2021
Lomonosov Moscow State University
2021
The Baikal-GVD neutrino telescope collaboration reports observing the diffuse cosmic flux. Relying on cascade events produced predominantly by electron and tau neutrinos, they observe a significant excess of over what is expected from atmospheric background. power law fit flux observation itself are consistent with independent confirmation landmark results IceCube.
Baikal-GVD is a next generation, kilometer-scale neutrino telescope under construction in Lake Baikal. It designed to detect astrophysical fluxes at energies from few TeV up 100 PeV. GVD formed by multi-megaton subarrays (clusters). The array started 2015 deployment of reduced-size demonstration cluster named "Dubna" . first it’s baseline configuration was deployed 2016, the second 2017 and third 2018. full-scale will be an ~10.000 light sensors with instrumented volume about 2 cubic km....
Baikal-GVD has recently published its first measurement of the diffuse astrophysical neutrino flux, performed using high-energy cascade-like events. We further explore cascade dataset collected in 2018-2022, with aim to identify possible associations between neutrinos and known sources. leverage relatively high angular resolution telescope (2-3 deg.), made by use liquid water as detection medium, enabling study point sources even estimate telescope's sensitivity channel for refine our...
Abstract The Baikal Gigaton Volume Detector (Baikal-GVD) is a km $$^3$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow /> <mml:mn>3</mml:mn> </mml:msup> </mml:math> -scale neutrino detector currently under construction in Lake Baikal, Russia. consists of several thousand optical sensors arranged on vertical strings, with 36 per string. strings are grouped into clusters 8 each. Each cluster can operate as stand-alone detector. layout optimized for the...
The progress in the construction and operation of Baikal Gigaton Volume Detector Lake is reported. detector designed for search high energy neutrinos whose sources are not yet reliably identified. It currently includes over 2000 optical modules arranged on 64 strings, providing an effective volume 0.4 km3 cascades with above 100 TeV. We review scientific case Baikal-GVD, plan, first results from partially built experiment, which largest neutrino telescope Northern Hemisphere still growing up.
A significant progress in the construction and operation of Baikal Gigaton Volume Detector Lake Baikal, largest deepest freshwater lake world, is reported. The effective volume detector for neutrino initiated cascades relativistic particles with energy above 100 TeV has been increased up to about 0.25 km3. This unique scientific facility, operating telescope Northern Hemisphere, allows already register two three events per year from astrophysical neutrinos energies exceeding TeV. Preliminary...
Baikal-GVD is a cubic-kilometer scale neutrino telescope, which currently under construction in Lake Baikal. an array of optical modules arranged clusters. The first cluster the has been deployed and commissioned April 2015. To date, consists 3 clusters with 864 modules. One vital conditions for optimal energy, position direction reconstruction detected particles time calibration detector. In this article, we describe equipment methods used demonstrate accuracy procedures.
Baikal-GVD is a next generation, kilometer-scale neutrino telescope currently under construction in Lake Baikal. GVD formed by multi-megaton subarrays (clusters) and designed for the detection of astrophysical fluxes at energies from few TeV up to 100 PeV. The design allows one search neutrinos with flux values measured IceCube already early phases array construction. We present here preliminary results high-energy via cascade mode telescope.
Currently in Lake Baikal a new-generation neutrino telescope is being deployed: Baikal-GVD, deep underwater Cherenkov detector on the cubic-kilometer scale. This paper presents status of implementation and first physical results obtained with existing configuration.
Next generation cubic kilometer scale neutrino telescope Baikal-GVD is currently under construction in Lake Baikal. The detector specially designed for search high energies neutrinos whose sources are not yet reliably identified. Since April 2018 the has been successfully operated complex of three functionally independent clusters i.e. sub-arrays optical modules (OMs) where now hosted 864 OMs on 24 vertical strings. Each cluster connected to shore by individual electro-optical cables....
Baikal-GVD is a neutrino telescope currently under construction in Lake Baikal. GVD formed by multi-megaton subarrays (clusters). The design of allows one to search for astrophysical neutrinos already at early phases the array construction. We present here preliminary results high-energy with 2019-2020.
We present data on the luminescence of Baikal water medium collected with Baikal-GVD neutrino telescope. This three-dimensional array light sensors allows observation time and spatial variations ambient field. report an increase activity in 2016 2018. On contrary, we observed practically constant optical noise 2017. An agreement has been found between two independent sets. These are online monitoring system trigger cluster.
Baikal-GVD is a km$^3$-scale neutrino telescope being constructed in Lake Baikal. Muon and partially tau (anti)neutrino interactions near the detector through W$^{\pm}$-boson exchange are accompanied by muon tracks. Reconstructed direction of track arguably most precise probe attainable Cerenkov telescopes. reconstruction techniques adopted discussed present report. Performance studied using realistic Monte Carlo simulation detector. The algorithms applied to real data from results compared...
Baikal-GVD is a cubic kilometer-scale neutrino telescope currently under construction in Lake Baikal. The detector’s components are mobile and may drift from their initial coordinates or change spatial orientation. This introduces reconstruction error, particularly timing error for PMT hits. problem mitigated by combination of hydroacoustic positioning system per-component acceleration orientation sensors. Under regular conditions, the average accuracy GVD component estimated to be less than 13 cm.
Multi-messenger astronomy is a powerful tool to study the physical processes driving non-thermal Universe. A combination of observations in cosmic rays, neutrinos, photons all wavelengths and gravitational waves expected. The alert system Baikal-GVD detector under construction will allow for fast, on-line reconstruction neutrino events recorded by telescope - if predefined conditions are satisfied formation an message other communities. preliminary results searches high-energy neutrinos...
Baikal-GVD neutrino telescope is under construction now. The 2021 configuration includes 8 clusters of 288 photodetectors each. Сluster a functionally complete detector that can register events, muons and cascade showers, in stand-alone mode jointly with other clusters. angular resolution the determined by accuracy time measurement channels. uncertainty depends, particular, on synchronization article describes method presents results studies both for individual installation as whole.
A significant progress in the construction and operation of Baikal Gigaton Volume Detector Lake Baikal, largest deepest freshwater lake world, is reported. The effective volume detector for neutrino initiated cascades relativistic particles with energy above 100 TeV has been increased up to about 0.25 cubic kilometer. This unique scientific facility, operating telescope Northern Hemisphere, allows already register two three events per year from astrophysical neutrinos energies exceeding TeV....
In April 2019, the Baikal-GVD collaboration finished installation of fourth and fifth clusters neutrino telescope Baikal-GVD. Momentarily, 1440 Optical Modules (OM) are installed in largest deepest freshwater lake world, Lake Baikal, instrumenting 0.25 km3 sensitive volume. The is thus on Northern Hemisphere. first phase detector construction going to be 2021 with 9 clusters, 2592 OMs total, however already stand-alone units which independently operational taking data from their...
The Baikal-GVD deep underwater neutrino experiment participates in the international multi-messenger program on discovering astrophysical sources of high energy fluxes cosmic particles, while being at stage deployment with a gradual increase its effective volume to scale cubic kilometer. In April 2021 detector has been reached 0.4 km$^3$ for cascade events above 100 TeV generated by interactions Lake Baikal. alarm system real-time monitoring celestial sphere was launched beginning 2021, that...