A. I. Kuzmin
A5057865222- Solar and Space Plasma Dynamics
- Astrophysics and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Radioactive Decay and Measurement Techniques
- Geomagnetism and Paleomagnetism Studies
- Geophysics and Gravity Measurements
- Neutrino Physics Research
- Atmospheric Ozone and Climate
- Magnetic and Electromagnetic Effects
- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- Radiation Therapy and Dosimetry
- Cosmology and Gravitation Theories
- Medical Imaging Techniques and Applications
- Gamma-ray bursts and supernovae
- Computational Physics and Python Applications
- Nuclear physics research studies
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Particle Detector Development and Performance
- Relativity and Gravitational Theory
- Spaceflight effects on biology
- Geophysics and Sensor Technology
The Federal State Budgetary Scientific Institution "Izmerov Research Institute of Occupational Health"
2024
Central Scientific Research Automobile and Engine Institute
2022
National Alliance on Mental Illness
2020
Budker Institute of Nuclear Physics
2001-2018
Siberian Branch of the Russian Academy of Sciences
2018
Novosibirsk State University
2018
European Organization for Nuclear Research
2006
Russian Scientific Center "Applied Chemistry"
1996-1999
Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy
1974
We report the first observation of B-->Dmacr;D(sJ)(2317) and B-->Dmacr;D(sJ)(2457) decays based on 123.8x10(6) BBmacr; events collected with Belle detector at KEKB. observe D(sJ)(2317) decay to D(s)pi(0) D(sJ)(2457) D(*)(s)pi(0) D(s)gamma final states. also set 90% C.L. upper limits for D(sJ)(2317)-->D(*)(s)gamma, D(sJ)(2457)-->D(*)(s)gamma, D(sJ)(2457)-->D(s)pi(0), D(sJ)(2457)-->D(s)pi(+)pi(-).
We report the first observation of charmless hyperonic B decay, B0-->pLambda(pi)(-), using a 78 fb(-1) data sample recorded on Upsilon(4S) resonance with Belle detector at KEKB. The measured branching fraction is B(B0-->pLambda(pi)(-))=(3.97(+1.00)(-0.80)+/-0.56)x10(-6). Searches for B0-->pLambda(K)- and pSigma(0)pi(-) yield no significant signals we set 90% confidence-level upper limits B(B0-->pLambda(K)-)<8.2x10(-7) B(B0-->pSigma(0)pi(-))<3.8x10(-6).
We report measurements of CP violation parameters in B0→K0Sπ0γ transitions based on a data sample 535×106B¯¯¯B pairs collected with the Belle detector at KEKB asymmetric-energy e+e− collider. One neutral B meson is fully reconstructed mode. The flavor accompanying identified from its decay products. obtain time-dependent and direct S A for K0Sπ0 invariant mass up to 1.8 GeV/c2 as SK0Sπ0γ=−0.10±0.31±0.07 AK0Sπ0γ=−0.20±0.20±0.06. For near K*0(892) resonance, we SK*0γ=−0.32+0.36−0.33±0.05...
Direct CP violation in the b→sγ process is a sensitive probe of physics beyond standard model. We report measurement asymmetry B→Xsγ, where hadronic recoil system Xs reconstructed using pseudoreconstruction technique. In this approach there negligible contamination from b→dγ decays, which are expected to have much larger asymmetry. find ACP=0.002±0.050(stat)±0.030(syst) for B→Xsγ events having mass smaller than 2.1 GeV/c2. The analysis based on data sample 140 fb−1 recorded at Υ(4S)...
We report the observation of decay B0→π0π0, using a 253 fb−1 data sample collected at Υ(4S) resonance with Belle detector KEKB e+e− collider. The measured branching fraction is B(B0→π0π0)=(2.3+0.4+0.2−0.5−0.3)×10−6, significance 5.8 standard deviations including systematic uncertainties. also make measurement direct CP violating asymmetry in this mode.Received 22 December 2004DOI:https://doi.org/10.1103/PhysRevLett.94.181803©2005 American Physical Society
We report the first observation of a B meson decay that is not accessible by direct spectator process. The channel B(0)-->D(+)(s)K- found in sample 85 x 10(6) BB; events, collected with Belle detector at KEKB, branching fraction B(B(0)-->D(+)(s)K-)=(4.6(+1.2)(-1.1)+/-1.3) 10(-5). also obtain evidence for B0-->D(+)(s)pi(-) B(B0-->D(+)(s)pi(-))=(2.4(+1.0)(-0.8)+/-0.7) This value may be used to extract model-dependent |V(ub)|.
Evidence is presented that the arrival direction distribution of cosmic rays with energies above 1019 eV not isotropic. Harmonic analyses indicate there is, prima facie, a first harmonic (amplitude=44%, chance probability=2.6%, phase (in right ascension)=13.3+or-1.5 h) at declinations 0 degrees , and significant second (amplitude=101%, probability=0.2%, 7.8, 19.8+or-1 below -30 . Supporting evidence from low energy data also discussed.
We report on a search for B(0)-->D(*0)K(*0) decays based 85 x 10(6) BB events collected with the Belle detector at KEKB. The B(0)-->D0K(0) and B(0)-->D0K(*0) have been observed first time branching fractions B(B(0)-->D0K(0))=(5.0(+1.3)(-1.2)+/-0.6)x10(-5) B(B(0)-->D0K(*0))=(4.8(+1.1)(-1.0)+/-0.5)x10(-5). No significant signal has found B(0)-->D(*0)K*0) decay modes, upper limits 90% C.L. are presented.
We present a measurement of the Michel parameters $τ$ lepton, $\barη$ and $ξκ$, in radiative leptonic decay $τ^- \rightarrow \ell^- ν_τ \barν_{\ell} γ$ using 711~f$\mathrm{b}^{-1}$ collision data collected with Belle detector at KEKB $e^+e^-$ collider. The are measured an unbinned maximum likelihood fit to kinematic distribution $e^+e^-\rightarrowτ^+τ^-\rightarrow (π^+π^0 \barν_τ)(\ell^-ν_τ\barν_{\ell}γ)$ $(\ell=e$ or $μ)$. values $\barη = -1.3 \pm 1.5 0.8$ $ξκ= 0.5 0.4 0.2$, where first...
We report the observation of decay D0-->phigamma with a statistical significance 5.4sigma in 78.1 fb(-1) data collected by Belle experiment at KEKB e+e- collider. This is first flavor-changing radiative charmed meson. The Cabibbo- and color-suppressed decays D0-->phipi(0), phieta are also observed for time. measure branching fractions B(D0-->phigamma)=[2.60(+0.70)(-0.61)(stat)+0.15-0.17(syst)] x 10(-5), B(D0-->phipi(0))=[8.01+/-0.26(stat)+/-0.47(syst)] 10(-4),...
Reference EPFL-ARTICLE-201317doi:10.1103/PhysRevD.89.119903View record in Web of Science Record created on 2014-08-29, modified 2017-05-12
A bstract We present a search for the lepton-flavor-violating decays $$ {B}_s^0 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>B</mml:mi> <mml:mi>s</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> </mml:math> → ℓ ∓ τ ± , where = e, μ using full data sample of 121 fb − 1 collected at Υ(5 S ) resonance with Belle detector KEKB asymmetric-energy e + collider. use {B}_s^0{\overline{B}}_s^0 <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> events in which one meson is...
Received 19 August 2015DOI:https://doi.org/10.1103/PhysRevD.92.039905© 2015 American Physical Society
Received 21 March 2014DOI:https://doi.org/10.1103/PhysRevLett.112.139903© 2014 American Physical Society
We report studies of the Cabibbo-suppressed decay B+/--->D(CP)K+/-, where D(CP) denotes CP eigenstates D0-D0; system. The analysis is based on a 29.1 fb(-1) sample collected at Upsilon(4S) resonance with Belle detector KEKB asymmetric e(+)e(-) storage ring. measure ratios branching fractions, relative to Cabibbo-favored B+/--->D(CP)pi(+/-), B(B--->D1K-)/B(B--->D1pi(-))=0.125+/-0.036+/-0.010 and B(B--->D2K-)/B(B--->D2pi(-))=0.119+/-0.028+/-0.006; index 1 (2) CP=+1 (-1) eigenstate. also...
The LHC dipoles magnets are produced in 5 industrial production sites Europe. is well underway and more than half of the total quantity has been delivered to CERN. One important characteristics dipole their geometry. To achieve requested mechanical tolerances on magnets, which 15 m long have a ap 28 t mass, final assembly operations includes precise optical measurements. ensure good quality high rate, procedure automated as much possible. authors report here about procedure, features...
Introduction Currently, bronchial lavage (BL) is widely used in clinical practice for the treatment of severe bronchopulmonary lesion adults. However, indications and contraindications this procedure are not fully defined. In addition, it was possible to find literature a classification either BL general or therapeutic purposes particular, which significantly complicates standardization procedures its use various diseases. Aim study To determine characteristics, as well indications, adults...