Author: "Kruglov, S. P." / Topic: scattering (physics) - Searchworks@Jio Institute Digital Library Search Results

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Start Over Author "Kruglov, S. P." Topic scattering (physics)

Author: Sumachev, V. V., Beloglazov, Yu. A., Filimonov, E. A., Kovalev, A. I., Kozlenko, N. G., Kruglov, S. P., Kulbardis, A. A., Lopatin, I. V., Novinsky, D. V., Shchedrov, V. A., Trautman, V. Yu., Alekseev, I. G., Budkovsky, P. E., Kanavets, V. P., Koroleva, L. I., Morozov, B. V., Nesterov, V. M., Ryltsov, V. V., Sulimov, A. D., and Svirida, D. N.
Subjects: BARYONS, PION-nucleon interactions, SCATTERING (Physics), HADRONS, PHYSICS
Abstract: The existing models of baryons usually predict considerably more resonance (three or more in number) than it was found by investigation of elastic pion-nucleon scattering. This disagreement invites further investigation of the pion-nucleon interaction and among other things the measurement of spin rotation parameters A and R in the elastic pion-nucleon scattering. Recent experiments of the PNPI and PNPI-ITEP collaborations resolved a part of twofold ambiguities of the existing partial wave analyses (PWA). These results were used in the last PWA of the George Washington University group SP06. The proposal for the additional spin rotation parameters A and R measurement in the resonance region is motivated. Such additional measurements are necessary to resolve remaining twofold ambiguities of the existing PWAs. [ABSTRACT FROM AUTHOR]
Published: 2008
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Author: Alekseev, I. G., Bazhanov, N. A., Beloglazov, Yu. A., Budkovsky, P. E., Bunyatova, E. I., Filimonov, E. A., Kanavets, V. P., Koroleva, L. I., Kovalev, A. I., Kruglov, S. P., Morozov, B. V., Nesterov, V. M., Novinsky, D. V., Ryltsov, V. V., Shchedrov, V. A., Sulimov, A. D., Sumachev, V. V., Svirida, D. N., Trautman, V. Yu., and Zhurkin, V. V.
Subjects: PIONS -- Scattering, PROTON scattering, NUCLEON-nucleon scattering, SCATTERING (Physics), COLLISIONS (Nuclear physics), WAVE analysis
Abstract: Latest results by the ITEP-PNPI collaboration on the asymmetry in the π+p elastic scattering are presented. The data were obtained for the first time in the region of backward angles with low cross section, where the predictions of the partial wave analyses are not reliable. The results at 1.94 GeV/c are in favor of the older KH80 analysis and show noticeable deviation from the latest FA06 solution by GWU group. At 2.07 GeV/c very low cross section did not allow to achieve good accuracy. Yet the data do not follow any of the PWA predictions and definitely disagree with SP06 analysis. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]
Published: 2007
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Author: Alekseev, I. G., Bazhanov, N. A., Budkovsky, P. E., Bunyatova, E. I., Kanavets, V. P., Kovalev, A. I., Koroleva, L. I., Kruglov, S. P., Morozov, B. V., Nesterov, V. M., Novinsky, D. V., Ryltsov, V. V., Shchedrov, V. A., Sulimov, A. D., Sumachev, V. V., Svirida, D. N., Trautman, V. Yu., and Zhurkin, V. V.
Subjects: PARTICLES (Nuclear physics), SCATTERING (Physics), SYNCHROTRONS, ATOMS, PROTONS, BARYONS
Abstract: The ITEP-PNPI collaboration presents new results of the measurements of the spin rotation parameter A in the elastic scattering of negative pions on protons at Pbeam=1.43 GeV/c. The results are compared to the predictions of the different partial wave analyses. The experiment was performed at the ITEP proton synchrotron, Moscow. [ABSTRACT FROM AUTHOR]
Published: 2004
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Author: Beloglazov, Yu. A., Kovalev, A. I., Kruglov, S. P., Novinsky, D. V., Sumachev, V. V., Trautman, V. Yu., Filimonov, E. A., Shchedrov, V. A., Alekseev, I. G., Budkovsky, P. E., Zhurkin, V. V., Kanavets, V. P., Koroleva, L. I., Morozov, B. V., Nesterov, V. M., Ryltsov, V. V., Svirida, D. N., Sulimov, A. D., Bazhanov, N. A., and Bunyatova, E. I.
Subjects: POLARIZATION (Nuclear physics), PARTICLES (Nuclear physics), RESONANCE, PIONS -- Scattering, SCATTERING (Physics), PION beams
Abstract: A program of measurement of the polarization parameter P in elastic π+p interaction in the resonance region of backward pion scattering is presented. This program is aimed at determining the bifurcation points of the trajectory of zeros of the pion–nucleon amplitude and, hence, at unambiguously reconstructing the amplitude of πN scattering in the second resonance region. It is planned to perform a relevant experiment in a pion beam from the accelerator of the Institute of Experimental and Theoretical Physics (ITEP, Moscow).© 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]
Published: 2005
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Author: Bayadilov, D. E., Beloglazov, Yu. A., Kan, M. R., Kozlenko, N. G., Kruglov, S. P., Lopatin, I. V., Novinsky, D. V., Radkov, A. K., Sumachev, V. V., and Filimonov, E. A.
Subjects: DIFFERENTIAL cross sections, CHARGE exchange, SCATTERING (Physics), SYNCHROCYCLOTRONS, PHOTONS, SPECTROMETERS, PARTICLES (Nuclear physics)
Abstract: Differential cross sections for the reaction π -p→π 0n were measured for nearly forward scattering angles. The experiment was performed at the pion channel of the synchrocyclotron installed at the Petersburg Nuclear Physics Institute (PNPI, Gatchina), the incident-pion momenta ranging between 417 and 710 MeV/c. The measurements, which involved recording both photons from the decay process π 0→2γ, employed the neutral-pion spectrometer developed at the PNPI. A description of the experimental facility is given, and the results of the measurements are presented. © 2004 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]
Published: 2004
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