G.P. Razuvaev
A5104593458- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Muon and positron interactions and applications
- Radiation Detection and Scintillator Technologies
- Particle accelerators and beam dynamics
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Computational Physics and Python Applications
- Neutrino Physics Research
- Superconducting Materials and Applications
- Plasma Diagnostics and Applications
- Atomic and Molecular Physics
- Advanced X-ray and CT Imaging
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
Budker Institute of Nuclear Physics
2015-2024
Siberian Branch of the Russian Academy of Sciences
2015-2024
Novosibirsk State University
2015-2024
Pulkovo Observatory
2018-2021
Novosibirsk State Technical University
2017-2019
University of Hawaiʻi at Mānoa
2019
University of Hawaii System
2019
University of Victoria
2017-2019
Boreskov Institute of Catalysis
2019
Russian Academy of Sciences
2015-2018
This paper introduces a new approach to measure the muon magnetic moment anomaly |$a_{\mu} = (g-2)/2$| and electric dipole (EDM) |$d_{\mu}$| at J-PARC facility. The goal of our experiment is |$a_{\mu}$| using an independent method with factor 10 lower momentum, 20 smaller diameter storage-ring solenoid compared previous ongoing |$g-2$| experiments unprecedented quality storage field. Additional significant differences from present experimental include 1000 transverse emittance beam...
The cross section of the process <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>e</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>e</a:mi><a:mo>−</a:mo></a:msup><a:mo stretchy="false">→</a:mo><a:msup><a:mi>π</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>π</a:mi><a:mo>−</a:mo></a:msup></a:math> has been measured in center mass energy range from 0.32 to 1.2 GeV with CMD-3 detector at electron-positron collider VEPP-2000. measurement is based on a full dataset...
The cross section of the process $e^+e^-\to\pi^+\pi^-$ has been measured in center mass energy range from 0.32 to 1.2 GeV with CMD-3 detector at electron-positron collider VEPP-2000. measurement is based on a full dataset collected below 1 during three data taking seasons, corresponding an integrated luminosity about 62 pb$^{-1}$. In dominant $\rho$-resonance region, systematic uncertainty 0.7% reached. At energies around $\phi$-resonance $\pi^+\pi^-$ production was for first time high beam...
Using a data sample of 6.8 pb$^{-1}$ collected with the CMD-3 detector at VEPP-2000 $e^+e^-$ collider we select about 2700 events $e^+e^- \to p\bar{p}$ process and measure its cross section 12 energy ponts 6\% systematic uncertainty. From angular distribution produced nucleons obtain ratio $|G_{E}/G_{M}| = 1.49 \pm 0.23 0.30$.
The $e^+ e^- \to K^0_{S}K^0_{L}$ cross section has been measured in the center-of-mass energy range 1004--1060 MeV at 25 points using $6.1 \times 10^5$ events with $K^0_{S}\to π^+π^-$ decay. analysis is based on 5.9 pb$^{-1}$ of an integrated luminosity collected CMD-3 detector VEPP-2000 e^-$ collider. To obtain $ϕ(1020)$ meson parameters approximated according to Vector Meson Dominance model as a sum $ρ, ω, ϕ$-like amplitudes and their excitations. This most precise measurement 1.8\%...
The process $e^+e^- \to K^+K^-\pi^+\pi^-$ has been studied in the center-of-mass energy range from 1500 to 2000\,MeV using a data sample of 23 pb$^{-1}$ collected with CMD-3 detector at VEPP-2000 $e^+e^-$ collider. Using about 24000 selected events, cross section measured systematic uncertainty decreasing 11.7\% 1500-1600\,MeV 6.1\% above 1800\,MeV. A preliminary study $K^+K^-\pi^+\pi^-$ production dynamics performed.
The process $e^+e^- \to K^+K^-$ has been studied using $1.7 \times 10^6$ events from a data sample corresponding to an integrated luminosity of 5.7 pb$^{-1}$ collected with the CMD-3 detector in center-of-mass energy range 1010--1060 MeV. cross section measured about 2\% systematic uncertainty and it is used calculate contribution anomalous magnetic moment muon $a_μ^{K^+K^-} = (19.33 \pm 0.40) 10^{-10}$, obtain $ϕ(1020)$ meson parameters. We consider relationship between K^0_SK^0_L$ sections...
The cross section of the process $e^+e^- \to \pi^+\pi^-\pi^0\eta$ has been measured using a data sample 21.8 pb$^{-1}$ collected with CMD-3 detector at VEPP-2000 $e^+e^-$ collider. 2769$\pm$95 signal events have selected in center-of-mass energy range 1394--2005 MeV. production dynamics is dominated by $\omega(782)\eta$ and $\phi(1020)\eta$ intermediate states lower range, $a_0(980)\rho(770)$ state higher energies.
A study of hadron production at the nucleon-antinucleon threshold has been performed with CMD-3 detector VEPP-2000 $e^+e^-$ collider. very fast rise about 1 MeV width observed in $e^+e^- \to p\bar p$ cross section. sharp drop 3(\pi^+\pi^-)$ section confirmed and found to have a less than 2 width, agreement For first time similar is demonstrated K^+K^-\pi^+\pi^-$ The behavior 3(\pi^+\pi^-),~ sections cannot be explained by an interference any resonance amplitude continuum, therefore this...
A search for the process $\epem\to \eta^\prime(958)$ in $\pipi\eta\to\pipi\gamma\gamma$ final state has been performed with CMD-3 detector at VEPP-2000 $e^+e^-$ collider. Using an integrated luminosity of 2.69 pb$^{-1}$ collected center-of-mass energy \Ecm = 957.68 MeV we set upper limit product electronic width and branching fractions $\Gamma_{\eta^\prime(958)\to\epem}\cdot\BR_{\eta^\prime(958)\to\pipi\eta}\cdot\BR_{\eta\to\gamma\gamma}<0.00041$ eV 90\% C.L.
The VEPP-2000 e+e− collider has been operated at Budker Institute of Nuclear Physics since 2010. experiments are performed with two detectors CMD-3 and SND. calorimetry the detector is based on three subsystems, coaxial barrel calorimeters—Liquid Xenon Calorimeter crystal CsI calorimeter, endcap calorimeter BGO crystals. This paper describes detector. design, its electronics calibration procedures discussed.
The cross section of the process $e^{+}e^{-}\rightarrow\eta\pi^{+}\pi^{-}$ is measured using data collected with CMD-$3$ detector at VEPP-$2000$ collider in center-of-mass energy range from $1.1$ to $2.0$ GeV. decay mode $\eta\rightarrow\gamma\gamma$ used for $\eta$ meson reconstruction sample corresponding an integrated luminosity $78.3$ pb$^{-1}$. dependence fitted within framework vector dominance order extract...
A cross section of the process e+e−→π+π−π+π− has been measured using 6798±93 signal events from a data sample corresponding to an integrated luminosity 9.8 pb−1 collected with CMD-3 detector in center-of-mass energy range 920–1060 MeV. The exhibits pattern interference ϕ(1020)→π+π−π+π− decay non-resonant e+e−→π+π−π+π−, which we obtain branching fraction doubly suppressed decays (by G-parity and OZI rule): B(ϕ→π+π−π+π−)=(6.5±2.7±1.6)×10−6.
Abstract The Super Charm-Tau factory (high luminosity electron-positron collider with 3–7 GeV center of mass energy range) experiment project is under development by the consortium Russian scientific and education organizations. article describes present status detector fast simulation algorithms on which it based, example usage demonstration results.
The process $e^+e^-{\to}K^+K^-\eta$ has been studied in the center-of-mass energy range from 1.59 to 2.007\,GeV using data sample of 59.5 pb$^{-1}$, collected with CMD-3 detector at VEPP-2000 $e^+e^-$ collider 2011, 2012 and 2017. $K^+K^-\eta$ final state is found be dominated by contribution $\phi(1020)\eta$ intermediate state. cross section $e^+e^-{\to}\phi(1020)\eta$ measured a systematic uncertainty 5.1$\%$ on base 3009 $\pm$ 67 selected events. obtained used calculate anomalous magnetic...
The CMD-3 detector has begun to take data at the electron-positron collider VEPP-2000 since december 2010. collected sample corresponds an integrated luminosity of 60 pb−1 in c.m. energy range from 0.32 up 2 GeV and about 50pb−1 for RUN2017. was measured by counting e+e− → γγ events, allowing additional photons final state. Preliminary results measurement are presented various ranges its accuracy is estimated be 1%.
The barrel electromagnetic calorimeter of the CMD-3 detector consists two subsystems: Liquid Xenon and based on CsI scintillation crystals. Its structure main characteristics are presented. energy calibration procedures combined described.
The cross section of the process $e^+e^- \to 3(\pi^+\pi^-)\pi^0$ has been measured for first time using a data sample 56.7 pb$^{-1}$ collected with CMD-3 detector at VEPP-2000 $e^+e^-$ collider. 632$\pm$32 signal events have selected in center-of-mass energy range 1.6 -- 2.0 GeV. A study dynamics seven-pion production allows one to extract contributions dominated $2(\pi^+\pi^-)\omega$ and $2(\pi^+\pi^-)\eta$ intermediate states.
Muon acceleration is an important technique in exploring the new frontier of physics. A measurement muon dipole moments planned J-PARC using linear accelerator. The low-energy (LE) source thin metal foil target and beam diagnostic system were developed for world's first acceleration. Negative muonium ions from as LE was successfully observed. Also profile positive measured by LE-dedicated monitor. test a Radio-Frequency Quadrupole linac (RFQ) being prepared step accelerator development. In...
This paper introduces a new approach to measure the muon magnetic moment anomaly $a_{\mu} = (g-2)/2$, and electric dipole (EDM) $d_{\mu}$ at J-PARC facility. The goal of our experiment is $a_{\mu}$ using an independent method with factor 10 lower momentum, 20 smaller diameter storage-ring solenoid compared previous ongoing $g-2$ experiments unprecedented quality storage field. Additional significant differences from present experimental include 1,000 transverse emittance beam (reaccelerated...