S. Fedotov
A5112517831- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Quantum Chromodynamics and Particle Interactions
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- High-Energy Particle Collisions Research
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Cosmology and Gravitation Theories
- Medical Imaging Techniques and Applications
- Hydrocarbon exploration and reservoir analysis
- Distributed and Parallel Computing Systems
- Seismic Imaging and Inversion Techniques
- Superconducting Materials and Applications
- Gamma-ray bursts and supernovae
- Reservoir Engineering and Simulation Methods
- Pulsars and Gravitational Waves Research
- Scientific Computing and Data Management
- Methane Hydrates and Related Phenomena
- Black Holes and Theoretical Physics
- Radiation Therapy and Dosimetry
- Particle Accelerators and Free-Electron Lasers
Institute for Nuclear Research
2017-2025
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2017-2024
Roma Tre University
2024
Charles University
2024
Duke University
2023
Universidad Autónoma de Madrid
2023
University of California, Irvine
2023
Boston University
2023
University of Bern
2023
Albert Einstein College of Medicine
2023
The T2K experiment presents new measurements of neutrino oscillation parameters using $19.7(16.3)\times10^{20}$ protons on target (POT) in (anti-)neutrino mode at the far detector (FD). Compared to previous analysis, an additional $4.7\times10^{20}$ POT data was collected FD. Significant improvements were made analysis methodology, with near-detector introducing selections and more than double data. Additionally, this is first use NA61/SHINE a replica tune flux model, interaction model...
Abstract Core-collapse supernovae are among the most magnificent events in observable universe. They produce many of chemical elements necessary for life to exist and their remnants—neutron stars black holes—are interesting astrophysical objects own right. However, despite millennia observations almost a century study, explosion mechanism core-collapse is not yet well understood. Hyper-Kamiokande next-generation neutrino detector that will be able observe flux from next galactic supernova...
This paper describes a novel idea of fine-grained fully-active plastic scintillator detector made many optically independent $1\times1\times1~\text{cm}^3$ cubes with readout on three orthogonal projections by wavelength shifting fibers. The original purpose this is to serve as an active neutrino target for the detection, measurement and identification final state particles down few tenths MeV kinetic energies. views well fine granularity ensure powerful localization deposited energy combined...
In this document, we present the Technical Design Report of Upgrade T2K Near Detector ND280. The goal upgrade is to improve performance measure neutrino interaction rate and constrain cross-sections so that uncertainty in number predicted events at Super-Kamiokande reduced about 4%. This will allow physics reach T2K-II project. achieved by modifying upstream part detector, adding a new highly granular scintillator detector (Super-FGD), two TPCs (High-Angle TPC) six TOF planes. Details...
The NA62 experiment at CERN SPS is designed to study the $K^+\to\pi^+\nu\bar\nu$ decay. After collecting data in 2016, 2017, and 2018, has resumed taking 2021 received approval for operations until onset of LS3. first search lepton number violating decay $K^+\to\pi^0\pi^-\mu^+ e^+$ flavour decays $K^+\to\pi^0\pi^+\mu^+ e^-$ , $K^+\to\pi^0\pi^+\mu^- reported. More recent results from analyses $K^+\to\pi^+\gamma\gamma$ $\pi^0\to e^+e^-$ are also Additionally, New Physics collected during...
This paper examines the practice-oriented aspects of integrating distributed information processing (DIP) systems into cloud services (ClS) trading companies. The use technologies (ClT) in trade is analyzed, revealing their key role optimizing many business processes, including: supply chain management, including monitoring logistics forecasting delivery times and route optimization; demand based on analysis historical data sales, seasonality market trends; personalization customer...
Searches for the lepton number violating ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\mu}}^{+}{e}^{+}$ decay and flavor ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}{e}^{+}$ ${\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{\ensuremath{-}}{e}^{+}$ decays are reported using data collected by NA62 experiment at CERN in 2017--2018. No evidence these is found upper limits of branching ratios obtained...
In order to extract neutrino oscillation parameters, precision long-baseline experiments rely on detailed models of interactions with nuclei. These constitute an important source systematic uncertainty, partially because detectors date have been blind final state neutrons. Three-dimensional projection scintillator trackers comprise components the near next generation experiments. Due good timing resolution and fine granularity, this technology is capable measuring neutron kinetic energy in...
Muon neutrino and antineutrino disappearance probabilities are identical in the standard three-flavor oscillation framework, but $CPT$ violation nonstandard interactions can violate this symmetry. In work we report measurements of ${\mathrm{sin}}^{2}{\ensuremath{\theta}}_{23}$ $\mathrm{\ensuremath{\Delta}}{m}_{32}^{2}$ independently for neutrinos antineutrinos. The aforementioned symmetry would manifest as an inconsistency parameters. analysis discussed here uses a total...
A novel scintillator detector, the SuperFGD, has been selected as main neutrino target for an upgrade of T2K experiment ND280 near detector. The detector design will allow nearly 4{\pi} coverage interactions at and provide lower energy thresholds, significantly reducing systematic errors experiment. SuperFGD is made optically-isolated cubes size 10x10x10 mm^3, providing required spatial resolution to reduce uncertainties future runs. have close two million in a 1920x560x1840 mm^3 volume....
T2K (Tokai-to-Kamioka) is a long-baseline neutrino experiment in Japan designed to study various parameters of oscillations. A near detector complex (ND280) located 280 m downstream the production target and measures beam before any oscillations occur. ND280's measurements are used predict number spectra neutrinos Super-Kamiokande at distance 295 km. The difference material between far (water) (scintillator, hydrocarbon) detectors leads main non-cancelling systematic uncertainty for...
Abstract The T2K experiment widely uses plastic scintillator as a target for neutrino interactions and an active medium the measurement of charged particles produced in at its near detector complex. Over 10 years operation measured light yield recorded by based subsystems has been observed to degrade 0.9–2.2% per year. Extrapolation degradation rate through 2040 indicates should remain above lower threshold used current reconstruction algorithms all subsystems. This will allow detectors...
The Baby MIND spectrometer is designed to measure the momentum and charge of muons from neutrino interactions in water hydrocarbon targets at J-PARC T59 (WAGASCI) experiment. WAGASCI experiment will ratio charged current interaction cross-sections on aiming reducing systematic errors oscillation analyses T2K. Construction detector within CERN Neutrino Platform framework was completed June 2017, where it underwent full commissioning characterization a particle beam line Proton Synchrotron...
The WAGASCI experiment being built at the J-PARC neutrino beam line will measure difference in cross sections from neutrinos interacting with a water and scintillator targets, order to constrain sections, essential for T2K oscillation measurements. A prototype Magnetised Iron Neutrino Detector (MIND), called Baby MIND, is constructed CERN act as magnetic spectrometer behind main target be able charge momentum of outgoing muon charged current interactions.
SuperFGD, a highly granular scintillator detector, is under construction to reduce systematic uncertainties in the T2K experiment order improve sensitivity CP-violation neutrino oscillations. SuperFGD will be comprised of about 2x10^6 small (10x10x10 mm^3) optically isolated polystyrene based plastic cubes with three orthogonal holes 1.5 mm diameter. The readout scintillating light from each cube provided by wavelength shifting fibers inserted into and coupled MPPC micropixel photosensors....
Baby MIND is a magnetized iron neutrino detector, with novel design features, and planned to serve as downstream muon spectrometer for the WAGASCI experiment on T2K beam line in Japan. One of main goals this reduce systematic uncertainties relevant CP-violation searches, by measuring contamination anti-neutrino mode T2K. currently being constructed at CERN, be operational Japan October 2017.
A hodoscope prototype to detect charged particles in the NA62 experiment at CERN SPS has been installed within experimental setup 2014 and exposed beam during data taking period. Efficiency time resolution for tiles are measured. The average signal amplitude (proportional light yield) is estimated from efficiency curves. results of tests have lead several improvements final design hodoscope.
The first measurement of the branching ratio ultra-rare $K^+ \to \pi^+\nu\bar\nu$ decay and searches for production feebly interacting particles predicted by dark scalar models from NA62 experiment at CERN are presented. results a search in-flight decays photon to $\ell^+\ell^-$ pairs with data collected in beam-dump mode 2021 also reported.
Recent results from searches for rare kaon decays with the NA62 experiment at CERN are reported, together future prospects. A HIKE, to go beyond NA62, has been proposed push physics an unprecedented frontier. The HIKE timescale and expected performance described. Among results, measurement of branching ratios flavour changing neutral current $K^+\rightarrow\pi^+\mu^+\mu^-$ radiative non leptonic $K^+\rightarrow\pi^+\gamma\gamma$ upper limits given lepton flavor number violating...
Long-baseline neutrino oscillation experiments rely on detailed models of interactions nuclei. These constitute an important source systematic uncertainty, partially because detectors to date have been unable detect final state neutrons. A novel three-dimensional projection scintillator tracker will be a component the upgraded off-axis near detector T2K experiment. Due good timing resolution and fine granularity, this technology is capable measuring neutron kinematics in event-by-event basis...
The T2K experiment presents new measurements of neutrino oscillation parameters using