V. Vorobyev
A5061158447- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Particle Detector Development and Performance
- Particle Accelerators and Free-Electron Lasers
- Computational Physics and Python Applications
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Stochastic processes and statistical mechanics
- Geological Studies and Exploration
- Distributed and Parallel Computing Systems
- Hydrocarbon exploration and reservoir analysis
- Cosmology and Gravitation Theories
- Radiation Detection and Scintillator Technologies
- Astrophysics and Cosmic Phenomena
- International Science and Diplomacy
- Advanced NMR Techniques and Applications
- Markov Chains and Monte Carlo Methods
- Cold Atom Physics and Bose-Einstein Condensates
- Particle accelerators and beam dynamics
European Organization for Nuclear Research
2013-2024
Universitat Ramon Llull
2023-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
2023-2024
Maastricht University
2023-2024
Syracuse University
2024
Novosibirsk State University
2014-2023
Siberian Branch of the Russian Academy of Sciences
2014-2023
Budker Institute of Nuclear Physics
2014-2023
ITMO University
2023
RWTH Aachen University
2023
Methods for centralized planning of the collision-free trajectories a fleet mobile robots typically solve discretized version problem and rely on numerous simplifying assumptions, e.g. moves uniform duration, cardinal only translations, equal speed size etc., thus resultant plans can not always be directly executed by real robotic systems. To mitigate this issue we suggest set modifications to prominent prioritized planner -- AA-SIPP(m) aimed at lifting most restrictive assumptions...
The invariant mass spectrum of the ${\ensuremath{\eta}}^{\ensuremath{'}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ final state produced in two-photon collisions is obtained using a $673\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample collected vicinity $\ensuremath{\Upsilon}(4S)$ resonance with Belle detector at KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. We observe clear signal ${\ensuremath{\eta}}_{c}(1S)$ and measure its width to be...
We report a measurement of the time-integrated $CP$ asymmetry in neutral charm meson decay $D^0 \to K^0_S K^0_S$ using 921~fb$^{-1}$ data collected at $Υ(4S)$ and $Υ(5S)$ resonances with Belle detector KEKB asymmetric-energy $e^+e^-$ collider. The observed is $$ A_{CP}(D^0 K^0_S) = (-0.02 \pm 1.53 0.17) \%, where first uncertainty statistical second systematic. This latter dominated by error normalisation channel. result consistent Standard Model expectations improves respect to previous...
We report a measurement of the CP violation parameter $\varphi_1$ obtained in time-dependent analysis $B^0\to\bar{D}{}^{(*)0}h^0$ decays followed by $\bar{D}{}^0\to K_S^0\pi^+\pi^-$ decay. A model-independent is performed using binned Dalitz plot technique. The measured value $\varphi_1 = 11.7^{\circ}\pm7.8^{\circ}({\rm stat.})\pm 2.1^{\circ}({\rm syst.})$. Treating $\sin{2\varphi_1}$ and $\cos{2\varphi_1}$ as independent parameters, we obtain $\sin{2\varphi_1} 0.43\pm 0.27({\rm 0.08({\rm...
We present an extraction of azimuthal correlations between two pairs charged pions detected in opposite jets from electron-positron annihilation. These may arise the dependence di-pion fragmentation on polarization parent quark process $e^+e^- \rightarrow q \bar{q}$. Due to correlation polarizations, cross-section pair production, which pion are a dijet event, exhibits modulation angles planes containing hadron with respect production plane. The measurement this allows access combinations...
A method for measuring the average longitudinal polarization of electron beam at an electron-positron collider operating near $J/ψ$ resonance is proposed. The utilizes differential cross-section $J/ψ\to [Λ\to pπ^-][\barΛ\to\bar{p}π^+]$ decay. It can be used to measure electrons with statistical precision better than $10^{-3}$ a Super Charm-Tau factory luminosity $10^{35}~\mathrm{cm}{}^{-2}\mathrm{s}{}^{-1}$. discussed in context weak mixing angle measurement same experiment.
A study of the radiation hardness pure CsI crystals 30 cm long was performed with a uniformly absorbed dose up to 14.3 krad. This initiated by proposed upgrade end cap calorimeter Belle-II detector, using crystals. set 14 truncated pyramid shape used in this produced at Institute for Scintillation Materials NAS from different ingots grown variations growing technology. Interrelationship crystal scintillation characteristics, and technology observed.
The Super Charm-Tau Factory is an electron-positron collider project in Novosibirsk with a peak luminosity of 1035 cm−1s−1 operating the center mass energy range between 2 and 6 GeV. physics program experiment general devoted to study charm quark tau lepton. Conceptual designs universal detector are presented. dedicated particle identification (PID) system required provide state-of-the-art level μ/π separation for momenta up 1.2 GeV/c. following options PID considered this paper: Focusing...
We report results on the studies of $e^+e^-\to B_s^{(*)}\bar{B}_s^{(*)}$ processes. The are based a $121.4$ fb$^{-1}$ data sample collected with Belle detector at center-of-mass energy near $Υ(10860)$ peak and $16.4$ 19 points in range from 10.77 to 11.02 GeV. observe clear $e^+e^-\toΥ(10860)\to signal, no statistically significant signal Υ(11020)\to B_s^{(*)}\bar{B}_s^{(*)}$. relative production ratio $B_s^*\bar{B}_s^*$, $B_s\bar{B}_s^{*}$, $B_s\bar{B}_s$ final states $\sqrt{s}=10.866$ GeV...
We discuss various thermodynamic equations used to represent the properties along saturation line (fluid density, gas order parameter, mean diameter, etc) in a neighborhood of critical temperature Tc. These are described scaling functions, depending on some parameters including exponents α and β. Along with well-known models, we investigate new model that represents diameter as sum two members region. The first term this depends exponent, second one 2β. In paper is given methodological...
A bstract new method for model-independent measurement of the CKM angle β is proposed, that employs time-dependent analysis flavour-tagged B 0 → D π + − decays with meson into $$ \mathcal{C}\mathcal{P} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>C</mml:mi> <mml:mi>P</mml:mi> </mml:math> -specific and K s final states. This can be used to measure future data from BelleII LHCb experiments precision level one degree.
Abstract The article describes the design of a digital model an HPC system for processing data from Super Charm-Tau factory electron-positron collider “megascience” class. This is developed using AGNES multiagent modeling platform. includes intelligent agents that mimic behavior main subsystems supercomputer, such as task scheduler, computing clusters, storage system, etc. allows calculating parameters necessary and storing results operation after its commissioning.
The project of the Super Charm-Tau (SCT) factory – a high-luminosity electron-positron collider forstudying charmed hadrons and tau lepton is proposed by Budker INP. implies singlecollision point equipped with universal particle detector. Aurora software framework has beendeveloped for SCT It based on trusted widely used in high energy physics softwarepackages, such as Gaudi, Geant4, ROOT. At same time, new ideas developments areemployed, particular benefits lot from turnkey future...
We report a measurement of the amplitude ratio $r_S$ $B^0 \to D^0K^{*0}$ and \bar{D^0}K^{*0}$ decays with model-independent Dalitz plot analysis using $D\to K_S^0\pi^+\pi^-$ decays. Using full data sample $772\times10^6$ $B\bar{B}$ pairs collected at $\Upsilon(4S)$ resonance Belle detector KEKB accelerator upper limit is $r_S < 0.87$ 68 % confidence level. This result first analysis, consistent results from other analyses. The value indicates sensitivity decay to $\phi_3$ because statistical...
The design and construction work of the Belle II detector subsystems, including its electromagnetic calorimeter, is ongoing. modification calorimeter includes development new electronics based on specially developed shaper-digitizer-signal-processing (Shaper DSP) modules. A shaper DSP module performs signal shaping, digitization, waveform analysis provides a fast sum for trigger. 576 Shaper Recently mass-production stage started complete performance test all modules now necessary. To...
Summary Osinsky formation composed mainly of dolomite and limestone, is one the main horizons Lena- Tunguska petroleum province. Horizon regionally distributed. Productivity horizon proved within Talakanskoe, Verkhnechonskoe, Markovskoe, Sobinskoye, Vakunayskoe other fields. Despite almost universal regional distribution these deposits, production rates wells are highly variable (0 to 500–700 tons per day), controlled by many factors. The authors have studied structure , more details -...
Summary The rocks of the Siberian platform characterized by presence salts. Salinization distributed very unevenly in section and is connected with peculiarities region depositional processes Paleotectonic. Greatest salinization were exposed Vendian Cambrian carbonates clastics. Within Verkhnechonskoe field predominantly Osinski verkhnechonskoye horizons. Accumulated material new drilling analysis performed earlier work allows to create basic hypothesis rocks. With its use wells constructed...
Summary Hydrocarbon accumulations in the basement rocks found North American (U.S., Mexico), South (Colombia, Brazil, Venezuela), African-Arabian (Libya, Morocco, Egypt), East European (Yugoslavia, Hungary, Ukraine, Austria ), China (China), Indochina (Vietnam) platforms, West Siberian (Russia) and Western plate (Spain, Italy, England, Scotland). In spite of considerable interest to geologists, platform was not associated with hydrocarbon reserves its basement. present study provides...