A. G. Kuzmin
A5083960874- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Advanced Chemical Sensor Technologies
- High-Energy Particle Collisions Research
- Mass Spectrometry Techniques and Applications
- Neutrino Physics Research
- Particle Accelerators and Free-Electron Lasers
- Entomopathogenic Microorganisms in Pest Control
- Laser-induced spectroscopy and plasma
- Chemical Thermodynamics and Molecular Structure
- Metabolomics and Mass Spectrometry Studies
- Particle accelerators and beam dynamics
- Insect Pest Control Strategies
- Atomic and Subatomic Physics Research
- Analytical Chemistry and Sensors
- Black Holes and Theoretical Physics
- Laser-Ablation Synthesis of Nanoparticles
- Advanced Materials Characterization Techniques
- Insect Pheromone Research and Control
- Advanced Frequency and Time Standards
- Radioactive contamination and transfer
- Iron oxide chemistry and applications
- Crystallography and Radiation Phenomena
- nanoparticles nucleation surface interactions
- Engineering Diagnostics and Reliability
Institute for Analytical Instrumentation
2011-2023
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
2022
Budker Institute of Nuclear Physics
2001-2021
Siberian Branch of the Russian Academy of Sciences
2016-2021
Scientific Center of RAS in Chernogolovka
2019
Geophysical Center
2018
Schmidt Institute of Physics of the Earth
2018
Ioffe Institute
2017
Novosibirsk State University
2010-2016
Institute for Biological Instrumentation
2016
We report the results of a study charged B decays to D+- pi-+ and D*+- final states using complete D(*) reconstruction. The contributions two-body => D** pi with narrow (j=3/2) broad (j=1/2) have been determined masses widths four measured. This is first observation D*0_0 D'0_1 mesons. analysis based on data sample 65 million barB pairs collected in Belle experiment.
We present a measurement of $CP$ asymmetry using time-dependent Dalitz plot analysis ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$ decays based on $414\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample containing $449\ifmmode\times\else\texttimes\fi{}{10}^{6}B\overline{B}$ pairs. The was collected the $\ensuremath{\Upsilon}(4S)$ resonance with Belle detector at KEKB asymmetric energy ${e}^{+}{e}^{\ensuremath{-}}$...
Using $281\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data from the Belle experiment recorded at or near $\ensuremath{\Upsilon}(4S)$ resonance, we have measured rates ``wrong-sign'' decays ${D}^{0}\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$ and ${D}^{0}\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ relative to those Cabibbo-favored...
We present a measurement of $CP$-violation parameters in the ${B}^{0}\ensuremath{\rightarrow}{K}_{S}^{0}{K}_{S}^{0}{K}_{S}^{0}$ decay based on sample $275\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected at $\ensuremath{\Upsilon}(4S)$ resonance with Belle detector KEKB energy-asymmetric ${e}^{+}{e}^{\ensuremath{-}}$ collider. One neutral $B$ meson is fully reconstructed ${B}^{0}\ensuremath{\rightarrow}{K}_{S}^{0}{K}_{S}^{0}{K}_{S}^{0}$, and flavor accompanying...
We report a measurement of the amplitude ratio |$r_S$| |$B^0 \to D^0K^{\ast 0}$| and \bar {D^0}K^{\ast decays with Dalitz analysis |$D\to K_S^0\pi ^+\pi ^-$| decays, for first time using model-independent method. set an upper limit |$r_S < 0.87$| at 68% confidence level, full data sample |$711\,{\rm fb}^{-1}$| corresponding to |$772\times 10^6$||$B\bar {B}$| pairs collected |$\Upsilon (4S)$| resonance Belle detector KEKB |$e^+e^-$| collider. This result is obtained from observables |$x_- =...
Using a sample of 102 million $\Upsilon(1S)$ events collected with the Belle detector, we report on first search for charge-parity-even charmonium and charmonium-like states in radiative decays. No significant $\chi_{cJ}$ or $\eta_c$ signal is observed 90% C.L. limits $\BR(\Upsilon(1S)\to \gamma \chi_{c0})<6.5 \times 10^{-4}$, \chi_{c1})<2.3\times 10^{-5}$, \chi_{c2})<7.6 10^{-6}$, \eta_c)<5.7\times 10^{-5}$ are obtained. The product branching fraction X(3872))...
We report a search for CP-violating asymmetry in B0 -> D*+- D-+ decays. The analysis employs two methods of reconstruction: full and partial. In the reconstruction method all daughter particles are required to be detected; partial technique requires fully reconstructed D- only slow pion from D*+ D0 pi_slow+ decay. From fit distribution time interval corresponding distance between B meson decay points we calculate parameters find significance nonzero CP 2.7 standard deviations.
We report on a measurement of the branching fractions for ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{D}^{(*)+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$ and $\overline{{B}^{0}}\ensuremath{\rightarrow}{D}^{(*)0}{\ensuremath{\pi}}^{+}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$ with $275\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ events collected at...
We report a study of the suppressed decays ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}[{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{]}_{D}{K}^{\ensuremath{-}}$ and ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}[{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{]}_{D}{\ensuremath{\pi}}^{\ensuremath{-}}$, where $[{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{]}_{D}$ indicates that ${K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ pair originates from neutral $D$ meson. These decay modes are sensitive to...
We report an improved measurement of the partial-rate CP asymmetry in B±→K0π± decays. The analysis is based on a data sample 85×106 B¯B pairs collected at Υ(4S) resonance with Belle detector KEKB e+e− storage ring. measure ACP(K0π±)=0.07+0.09−0.08+0.01−0.03, where first and second errors are statistical systematic, respectively; corresponding 90% confidence-level interval −0.10<ACP(K0π±)<0.22. Received 24 April 2003DOI:https://doi.org/10.1103/PhysRevD.68.011103©2003 American Physical Society
Using a data sample of 980 fb$^{-1}$ collected with the Belle detector at KEKB asymmetric-energy $e^+e^-$ collider, we study processes $\Xi^0_c\to \Lambda\bar K^{*0}$, \Sigma^0\bar and \Sigma^+K^{*-}$ for first time. The relative branching ratios to normalization mode $\Xi^0_c\to\Xi^-\pi^+$ are measured be $${\cal B}(\Xi^0_c\to K^{*0})/{\cal B}(\xic\to \Xi^-\pi^+)=0.18\pm0.02({\rm stat.})\pm0.01({\rm syst.}),$$ \Xi^-\pi^+)=0.69\pm0.03({\rm stat.})\pm0.03({\rm \Sigma^+K^{*-})/{\cal...
For the first time, quantitative and qualitative composition of volatile organic compounds (VOCs), released by strains various species entomopathogenic fungi (EF) genus Lecanicillium, was studied using a quadrupole mass spectrometer. Lecanicillium are used as an alternative to chemical pesticides for plant protection. The main detected components gas phase over EF mycelium on 10th day growing agar Czapek's medium were carbon dioxide (5–20%), oxygen (0.1–15%), acetone (0.2–12 ppm), pentane...
The method is proposed for express diagnostics of diseases according to the data mass spectrometric analysis exhaled air. An algorithm calculating probability has been developed and tested. results processing patients treated in two oncological clinics are presented. calculation disease air based on attributing spectrum tested patient mass-spectra corresponding control group. Each group formed by collecting an array spectra from at least ten with same disease. Diagnostics performed...
We report a measurement of the decay B0 --> rho0 pi0, using 386 x 10^6 BB-bar pairs collected at Upsilon(4S) resonance with Belle detector KEKB asymmetric-energy e+e- collider. detect 51^{+14}_{-13} signal events significance 4.2 standard deviations, including systematic uncertainties, and measure branching fraction to be B(B0 pi0) = (3.12^{+0.88}_{-0.82} (stat) +/- 0.33 (syst) ^{+0.50}_{-0.68} (model)) 10^{-6}. also perform first direct CP violating asymmetry in this mode.
The paper discusses some peculiarities of the design and development scientific equipment, particularly mass spectrometers, which provide implementation high standard technological analytical testing methods.
The paper studies the possibility of using a quadrupole gas mass spectrometer as part diagnostic complex based on rotary (mechanorgical) table to assess effectiveness dynamic postural effects patients. Analysis obtained spectrograms indicates that response patients is individual and can vary significantly. Taking into account spectrometric parameters exhaled air allows patient be assigned specific group. Information concentration oxygen carbon dioxide in patient's exhalation, well analysis...
Measurements of energy transformation and dissipation in mitochondria by the calorimetric method were carried out second half last century.However, to date no specialized calorimeter has been developed for this purpose.Selection compounds providing uncoupleted mitochondrial respiration without damaging respiratory chain components, use pharmaceutical compositions drugs, development new neuroprotectors, nefroprotectors require precise measurements heat release different uncouplers oxidative...