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4 results on '"V. Zaets"'

1. Raising the accuracy in determining the geometrical parameters and calibration of vertical cylindrical vessels on checking.

Author

A. Samoilenko and V. Zaets

Subjects
*GEOMETRIC modeling, *LABOR productivity, *INDUSTRIAL productivity, *LEAST squares
Abstract

Abstract  Methods are described for making measurements with electronic tacheometers and scanners that allow one to raise the productivity of labor by a substantial factor while increasing the accuracy in determining the geometrical parameters of the vessels. Formulas are given for estimating the geometrical parameters from the coordinates of points on the tank walls, and also estimates of the accuracy obtained by least-squares fitting. [ABSTRACT FROM AUTHOR]

Published
2007
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2. Cross sections of large-angle hadron production in proton– and pion–nucleus interactions III: tantalum nuclei and beam momenta from ±3 GeV/c to ±15 GeV/c

Author

A. Bolshakova, I. Boyko, G. Chelkov, D. Dedovitch, A. Elagin, M. Gostkin, A. Guskov, Z. Kroumchtein, Y. Nefedov, K. Nikolaev, A. Zhemchugov, F. Dydak, J. Wotschack, A. De Min, V. Ammosov, V. Gapienko, V. Koreshev, A. Semak, Y. Sviridov, E. Usenko, and V. Zaets

Subjects
Physics, Particle physics, Proton, Physics and Astronomy (miscellaneous), Hadron, Nuclear Theory, Tantalum, chemistry.chemical_element, High Energy Physics - Experiment, Momentum, Pion, chemistry, Deuterium, Nuclear interaction length, Physics::Accelerator Physics, Neutrino Factory, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract

We report on double-differential inclusive cross-sections of the production of secondary protons, charged pions, and deuterons, in the interactions with a 5% nuclear interaction length thick stationary tantalum target, of proton and pion beams with momentum from +/-3 GeV/c to +/-15 GeV/c. Results are given for secondary particles with production angles between 20 and 125 degrees. They are of particular relevance for the optimization of the design parameters of the proton driver of a neutrino factory., Comment: 68 pages, 12 figures, corrections in v2: added 'HARP -CDP group' to author name, corrected two typos in Table 4 (last two p values for 65-90 degrees were all 0.972)

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3. Cross-sections of large-angle hadron production in proton– and pion–nucleus interactions II: beryllium nuclei and beam momenta from ±3 GeV/c to ±15 GeV/c

Author

A. Bolshakova, I. Boyko, G. Chelkov, D. Dedovitch, A. Elagin, M. Gostkin, S. Grishin, A. Guskov, Z. Kroumchtein, Yu. Nefedov, K. Nikolaev, A. Zhemchugov, F. Dydak, J. Wotschack, A. De Min, V. Ammosov, V. Gapienko, V. Koreshev, A. Semak, Yu. Sviridov, E. Usenko, and V. Zaets

Subjects
Physics and Astronomy (miscellaneous), Nuclear Theory, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous)
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4. HARP–CDP hadroproduction data: comparison with FLUKA and GEANT4 simulations

Author

A. Bolshakova, I. Boyko, G. Chelkov, D. Dedovitch, A. Elagin, D. Emelyanov, M. Gostkin, A. Guskov, Z. Kroumchtein, Yu. Nefedov, K. Nikolaev, A. Zhemchugov, F. Dydak, J. Wotschack, A. De Min, V. Ammosov, V. Gapienko, V. Koreshev, A. Semak, Yu. Sviridov, E. Usenko, and V. Zaets

Subjects
Physics, Particle physics, Physics and Astronomy (miscellaneous), HARP-CDP hadroproduction data: comparison with FLUKA and GEANT4 simulations, Monte Carlo method, Physics::Medical Physics, Nuclear Theory, FOS: Physical sciences, chemistry.chemical_element, High Energy Physics - Experiment, Momentum, High Energy Physics - Experiment (hep-ex), Pion, chemistry, Beryllium, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, HARP
Abstract

We report on the comparison of production characteristics of secondary protons and charged pions in the interactions of protons and charged pions with momentum between 3 GeV/c and 15 GeV/c with beryllium, copper, and tantalum nuclei, with simulations by the FLUKA and Geant4 Monte Carlo tool kits. Overall production cross-sections are reasonably well reproduced, within factors of two. In more detail, there are areas with poor agreement that are unsatisfactory and call for modelling improvements. Overall, the current FLUKA simulation fares better than the current Geant4 simulation., Comment: 21 pages, 15 figures

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