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31 results on '"Bekrenev, V. S."'

1. Measurement of the $^{1}H$($\vec{\gamma}$, $\vec{p}$)$\pi^{0}$ reaction using a novel nucleon spin polarimeter

Author

Watts, D. P., Glazier, D. I., Aguar-Bartolomé, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., Bantawa, K., Beck, R., Bekrenev, V. S., Berghäuser, H., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J., Cherepnya, S., Codling, R. F. B., Demissie, B. T., Downie, E. J., Drexler, P., Fil'kov, L. V., Freehart, B., Gregor, R., Hamilton, D., Heid, E., Hornidge, D., Jaegle, I., Jahn, O., Jude, T. C., Kashevarov, V. L., Keshelashvili, I., Kondratiev, R., Korolija, M., Kotulla, M., Koulbardis, A. A., Kruglov, S. P., Krusche, B., Lisin, V., Livingston, K., MacGregor, I. J. D., Maghrbi, Y., Manley, D. M., Marinides, Z., Martinez, M., McGeorge, J. C., McKinnon, B., McNicoll, E. F., Mekterovic, D., Metag, V., Micanovic, S., Middleton, D. G., Mushkarenkov, A., Nefkens, B. M. K., Nikolaev, A., Novotny, R., Ostrick, M., Otte, P. B., Oussena, B., Pedroni, P., Pheron, F., Polonski, A., Prakhov, S., Robinson, J., Rosner, G., Rostomyan, T., Schumann, S., Sober, D. I., Starostin, A., Strakovsky, I. I., Suarez, I. M., Supek, I., Thiel, M., Thomas, A., Unverzagt, M., Werthmüller, D., Workman, R. L., Zamboni, I., and Zehr, F.

Subjects
Nuclear Experiment
Abstract

We report the first large-acceptance measurement of polarization transfer from a polarized photon beam to a recoiling nucleon, pioneering a novel polarimetry technique with wide application to future nuclear and hadronic physics experiments. The commissioning measurement of polarization transfer in the $^{1}H$($\vec{\gamma}$,$\vec{p}$)$\pi^{0}$ reaction in the range $0.4

Published
2013
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2. $K^+\Lambda$ and $K^+\Sigma^0$ photoproduction with fine center-of-mass energy resolution

Author

Jude, T. C., Glazier, D. I., Watts, D. P., Aguar-Bartolome, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., Bantawa, K., Beck, R., Bekrenev, V. S., Berghauser, H., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J., Cherepnya, S., Demissie, B. T., Dieterle, M., Downie, E. J., Fil'kov, L. V., Gregor, R., Heid, E., Hornidge, D., Jaegle, I., Jahn, O., Kashevarov, V. L., Keshelashvili, I., Kondratiev, R., Korolija, M., Koulbardis, A. A., Kruglov, S. P., Krusche, B., Lisin, V., Livingston, K., MacGregor, I. J. D., Maghrbi, Y., Manley, D. M., Marinides, Z., Mart, T., Martinez, M., McGeorge, J. C., McNicoll, E. F., Middleton, D. G., Mushkarenkov, A., Nefkens, B. M. K., Nikolaev, A., Nikonov, V. A., Oberle, M., Ostrick, M., Otte, P. B., Oussena, B., Pedroni, P., Pheron, F., Polonski, A., Prakhov, S., Robinson, J., Rosner, G., Rostomyan, T., Sarantsev, A. V., Schumann, S., Sikora, M. H., Sober, D. I., Starostin, A., Strakovsky, I., Suarez, I. M., Supek, I., Thiel, M., Thomas, A., Unverzagt, M., Werthmueller, D., Witthauer, L., and Zehr, F.

Subjects
Nuclear Experiment
Abstract

Measurements of $\gamma p \rightarrow K^{+} \Lambda$ and $\gamma p \rightarrow K^{+} \Sigma^0$ cross-sections have been obtained with the photon tagging facility and the Crystal Ball calorimeter at MAMI-C. The measurement uses a novel $K^+$ meson identification technique in which the weak decay products are characterized using the energy and timing characteristics of the energy deposit in the calorimeter, a method that has the potential to be applied at many other facilities. The fine center-of-mass energy ($W$) resolution and statistical accuracy of the new data results in a significant impact on partial wave analyses aiming to better establish the excitation spectrum of the nucleon. The new analyses disfavor a strong role for quark-diquark dynamics in the nucleon., Comment: 7 pages, 8 figures

Published
2013
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3. Study of the gp-->etap reaction with the Crystal Ball detector at the Mainz Microtron(MAMI-C)

Author

McNicoll, E. F., Prakhov, S., Strakovsky, I. I., Aguar-Bartolomepmainz, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., Arndt, R. A., Azimov, Ya. I., Bantawa, K., Beck, R., Bekrenev, V. S., Berghaeuser, H., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J., Cherepnya, S., Codling, R. F. B., Demissie, B. T., Downie, E. J., Drexler, P., Fil'kov, L. V., Fix, A., Freehart, B., Glazier, D. I., Gregor, R., Hamilton, D., Heid, E., Hornidge, D., Jaegle, I., Jahn, O., Jude, T. C., Kashevarov, V. L., Kellie, J. D., Keshelashvili, I., Kondratiev, R., Korolija, M., Kotulla, M., Koulbardis, A. A., Kruglov, S. P., Krusche, B., Lisin, V., Livingston, K., MacGregor, I. J. D., Maghrbi, Y., Manley, D. M., Marinides, Z., Martinez, M., McGeorge, J. C., McKinnon, B., Mekterovic, D., Metag, V., Micanovic, S., Middleton, D., Mushkarenkov, A., Nefkens, B. M. K., Nikolaev, A., Novotny, R., Ostrick, M., Otte, P. B., Oussena, B., Paris, M. W., Pedroni, P., Pheron, F., Polonski, A., Robinson, J., Rosner, G., Rostomyan, T., Schumann, S., Sikora, M. H., Sober, D. I., Starostin, A., Suarez, I. M., Supek, I., Thiel, M., Thomas, A., Tiator, L., Unverzagt, M., Watts, D. P., Werthmueller, D., Workman, R. L., Zamboni, I., and Zehr, F.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Theory
Abstract

The gp-->etap reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49 =< W >= 1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and momentum analyzed by the Glasgow Tagging Spectrometer were used for the eta-meson production. Our accumulation of 3.8 x 10^6 gp-->etap-->3pi0p-->6gp events allows a detailed study of the reaction dynamics. The gp-->etap differential cross sections were determined for 120 energy bins and the full range of the production angles. Our data show a dip near W = 1680 MeV in the total cross section caused by a substantial dip in eta production at forward angles. The data are compared to predictions of previous SAID and MAID partial-wave analyses and to thelatest SAID and MAID fits that have included our data., Comment: 15 pages, 12 figures

Published
2010
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4. Does the Sigma(1580)3/2- resonance exist?

Author

Crystal Ball Collaboration, Olmsted, J., Prakhov, S., Manley, D. M., Allgower, C. E., Bekrenev, V. S., Briscoe, W. J., Clajus, M., Comfort, J. R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D. D., Kozlenko, N. G., Kruglov, S., Kulbardis, A. A., Lolos, G., Lopatin, I. V., Manweiler, R., Marusic, A., McDonald, S., Nefkens, B. M. K., Papandreou, Z., Peaslee, D. C., Phaisangittisakul, N., Price, J. W., Ramirez, A. F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T. D. S., Starostin, A., Staudenmaier, H. M., Strakovsky, I. I., Supek, I., and Tippens, W. B.

Subjects
Nuclear Experiment
Abstract

Precise new data for the reaction $K^- p \to \pi^0 \Lambda$ are presented in the c.m. energy range 1565 to 1600 MeV. Our analysis of these data sheds new light on claims for the $\Sigma(1580){3/2}^-$ resonance, which (if it exists with the specified quantum numbers) must be an exotic baryon because of its very low mass. Our results show no evidence for this state., Comment: 4 pages, 4 figures

Published
2003
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5. Study of Reactions π − p → ηn and π − p → π 0 n on Pion Beams of the PNPI Synchrocyclotron

Author

Lopatin, I. V., Abaev, V. V., Bekrenev, V. S., Filimonov, E. A., Gridnev, A. B., Kan, M. R., Kozlenko, N. G., Kruglov, S. P., Lapochkina, L. V., Majorov, A. Yu., Novinsky, D. V., Starostin, A. B., Sumachev, V. V., Nefkens, B. M. K., Price, J. W., White, D. B., Clajus, R. M., Sadler, M. E., Isenhower, L. D., Garner, S. E., Phillips, J. R., Redmon, J. A., Mitter, H., editor, Plessas, W., editor, Adam, J., editor, Dobeš, J., editor, Mach, R., editor, Sotona, M., editor, and Dolejší, J., editor

Published
1996
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6. Measurement of the Spin Rotation Parameters R and A in πp Elastic Scattering in the Energy Range from 450 to 600 MeV

Author

Abaev, V. V., Bazhanov, N. A., Bekrenev, V. S., Beloglazov, Yu. A., Fedorova-Koval, E. P., Filimonov, E. A., Kovalev, A. I., Kozlenko, N. G., Kruglov, S. P., Kulbardis, A. A., Lapochkina, L. V., Lopatin, I. V., Polyakov, V. V., Shvedchikov, A. V., Sumachev, V. V., Tkatch, I. I., Trautman, V. Yu., Althoff, Karl-Heinz, editor, and Meyer, Werner, editor

Published
1991
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7. Measurements of 12C$E_{\gamma}=200$–450 MeV

Author

Robinson, J., MacGregor, I. J. D., Annand, J. R. M., Aguar-Bartolomé, P., Akasoy, L. K., Arends, H. J., Azimov, Ya. I., Bantawa, K., Beck, R., Bekrenev, V. S., Berghäuser, H., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J., Cherepnya, S., Codling, R. F. B., Demissie, B. T., Dieterle, M., Downie, E. J., Drexler, P., Fil’kov, L. V., Glazier, D. I., Gregor, R., Hamilton, D., Heid, E., Hornidge, D., Howdle, D., Jahn, O., Jude, T. C., Kashevarov, V. L., Keshelashvili, I., Kondratiev, R., Korolija, M., Kotulla, M., Koulbardis, A. A., Kruglov, S. P., Krusche, B., Lisin, V., Livingston, K., Manley, D. M., McGeorge, J. C., McNicoll, E. F., Metag, V., Middleton, D. G., Mushkarenkov, A., Nefkens, B. M. K., Nikolaev, A., Novotny, R., Oberle, M., Ostrick, M., Owens, R. O., Otte, P. B., Oussena, B., Pedroni, P., Polonski, A., Prakhov, S., Rosner, G., Rostomyan, T., Schumann, S., Sikora, M. H., Sober, D. I., Starostin, A., Strakovsky, I. I., Suarez, I. M., Supek, I., Tarbert, C. M., Thiel, M., Thomas, A., Unverzagt, M., Watts, D. P., Werthmueller, D., Witthauer, L., and The Crystal Ball at MAMI and A2 Collaborations

Published
2013
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8. Measurement of the total and differential cross sections for the reaction π − p → ηn with the Crystal Ball detector

Author

Kozlenko, N. G., Abaev, V. V., Bekrenev, V. S., Kruglov, S. P., Koulbardis, A. A., Lopatin, I. V., Starostin, A. B., Draper, B., Hayden, S., Huddleston, J., Isenhower, D., Robinson, C., Sadler, M., Allgower, C., Cadman, R., Spinka, H., Comfort, J., Craig, K., Ramirez, A., Kycia, T., Clajus, M., Marusic, A., McDonald, S., Nefkens, B. M. K., Phaisangittisakul, N., Prakhov, S., Price, J. W., Tippens, W. B., Peterson, J., Briscoe, W. J., Shafi, A., Strakovsky, I. I., Staudenmaier, H., Manley, D. M., Olmsted, J., Peaslee, D., Knecht, N., Lolos, G., Papandreou, Z., Supek, I., Slaus, I., Gibson, A., Grosnic, D., Koetke, D., Manweiler, R., and Stanislaus, S.

Published
2003
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9. Study of Reactions π − p → ηn and π − p → π 0 n on Pion Beams of the PNPI Synchrocyclotron

Author

Lopatin, I. V., primary, Abaev, V. V., additional, Bekrenev, V. S., additional, Filimonov, E. A., additional, Gridnev, A. B., additional, Kan, M. R., additional, Kozlenko, N. G., additional, Kruglov, S. P., additional, Lapochkina, L. V., additional, Majorov, A. Yu., additional, Novinsky, D. V., additional, Starostin, A. B., additional, Sumachev, V. V., additional, Nefkens, B. M. K., additional, Price, J. W., additional, White, D. B., additional, Clajus, R. M., additional, Sadler, M. E., additional, Isenhower, L. D., additional, Garner, S. E., additional, Phillips, J. R., additional, and Redmon, J. A., additional

Published
1995
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10. K+ Lambda and K+ Sigma(0) photoproduction with fine center-of-mass energy resolution

Author

Jude T. C., Glazier D. I., Watts D. P., Aguar-Bartolome P., Akasoy L. K., Annand J. R. M., Arends H. J., Bantawa K., Beck R., Bekrenev V. S., Berghaeuser H., Braghieri A., Branford D., Briscoe W. J., Brudvik J., Cherepnya S., Demissie B. T., Dieterle M., Downie E. J., Fil'kov L. V., Gregor R., Heid E., Hornidge D., Jaegle I., and Jahn O.

Published
2014

12. Measurement of the 1H(γ→, p⃗)π0 Reaction Using a Novel Nucleon Spin Polarimeter

Author

Sikora, M. H., Watts, D. P., Glazier, D. I., Aguar-Bartolome, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., Bantawa, K., Beck, R., Bekrenev, V. S., Berghaeuser, H., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J., Cherepnya, S., Codling, R. F. B., Demissie, B. T., Downie, E. J., Drexler, P., Fil'kov, L. V., Freehart, B., Gregor, R., Hamilton, D., Heid, E., Hornidge, D., Howdle, D. A., Jaegle, I., Jahn, O., Jude, T. C., Kashevarov, V. L., Keshelashvili, I., Kondratiev, R., Korolija, M., Kotulla, M., Koulbardis, A. A., Kruglov, S. P., Krusche, B., Lisin, V., Livingston, K., MacGregor, I. J. D., Maghrbi, Y., Manley, D. M., Marinides, Z., Martinez, M., McGeorge, J. C., McKinnon, B., McNicoll, E. F., Mekterovic, D., and Metag, V.

Subjects
PHYSICS, TAPS, PSEUDOSCALAR MESON PHOTOPRODUCTION, PHOTON SPECTROMETER, ANALYZING POWER, Nuclear Theory, Nuclear Experiment, MAMI, MASSES
Abstract

We report the first large-acceptance measurement of polarization transfer from a polarized photon beam to a recoiling nucleon. The measurement pioneers a novel polarimetry technique, which can be applied to many other nuclear and hadron physics experiments. The commissioning reaction of 1H(γ→, p⃗)π0 in the range 0.4

Published
2014
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14. Measurement of the total cross section of the reaction K-p-->Sigma 0 gamma between 514 and 750 MeV/c

Author

Stanislaus, T. D. S., Abaev, V. V., Allen, D., Allgower, C. E., Alyea, J., Bates, M. A., Bekrenev, V. S., Briscoe, W. J., Cadman, R. V., Comfort, J., Corliss, R., Craig, K., Gibson, A., Greene, R., Grosnick, D. P., Isenhower, D., Kasprzyk, T-E., Knecht, N., Koetke, D. D., Kozlenko, N. G., Kruglov, S. P., Kulbardis, A. A., Lolos, G., Lopatin, I. V., Manley, 9 R. Manweiler, D. M., Marušić, Aljoša, McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D. C., Phaisangittisakul, N., Price, J. W., Ramirez, A. F., Sadler, M., Schlobohm, S., Shafi, A., Spinka, H., Staudenmaier, H. M., Strakovsky, I. I., Supek, Ivan, Thoms, J., and Wolf, S.

Subjects
Physics::Instrumentation and Detectors, High Energy Physics::Experiment, Nuclear Experiment, total cross section
Abstract

We report the first measurements of the total cross section of the reaction K-p-->Sigma 0 gamma at eight beam momenta from 514 to 750 MeV/c. The data were obtained at the Alternating Gradient Synchrotron (AGS) at Brookhaven National Laboratory using the Crystal Ball detector consisting of 672 NaI crystals. All charged particles were vetoed by a barrel of plastic scintillators, resulting in a study of only the neutral decays of the Sigma 0. The prompt photon and the photons from the decay products of Sigma 0 were detected for each reconstructed event ; the neutron was also detected in a small fraction of the events.

Published
2009
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15. Measurement of the K-p00 reaction between 514 and 750 MeV/c

Author

Manweiler, R., Cadman, R. V., Spinka, H., Abaev, V. V., Allen, D., Allgower, C. E., Alyea, J., Bates, M. A., Bekrenev, V. S., Briscoe, W. J., Clajus, M., Comfort, J., Corliss, R., Craig, K., Gibson, A., Greene, R., Grosnick, D. P., Isenhower, D., Kasprzyk, T. E., Knecht, N., Koetke, D. D., Kozlenko, N. G., Kruglov, S. P., Kulbardis, A. A., Lolos, G., Lopatin, I. V., Manley, D. M., Marušić, Aljoša, McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D. C., Phaisangittisakul, N., Ramirez, A. F., Sadler, M., Shafi, A., Stanislaus, T. D. S., Staudenmaier, H. M., Strakovsky, I. I., Supek, Ivan, Thoms, J., Tippens, W. B., and Wolf, S.

Subjects
Nuclear Theory, Crystal Ball detector, Nuclear Experiment
Abstract

The reaction K-p00 neutrals was studied with the Crystal Ball detector at the BNL Alternating Gradient Synchrotron for beam momenta between 514 and 750 MeV/c. The photons from 0 and 0 decays were detected, as well as the neutron in a small fraction of the events. The differential cross section and the 0 polarization are reported at eight momenta and nearly the full angular range. Total cross sections are derived from Legendre polynomial fits to the data. The measurements presented are of considerably higher precision than previous results.

Published
2008

17. Measurements of C-12((gamma)over-right-arrow, pp) photon asymmetries for E-gamma=200-450 MeV

Author

Robinson J., MacGregor I. J. D., Annand J. R. M., Aguar-Bartolome P., Akasoy L. K., Arends H. J., Azimov Ya. I., Bantawa K., Beck R., Bekrenev V. S., Berghaeuser H., Braghieri A., Branford D., Briscoe W. J., Brudvik J., Cherepnya S., Codling R. F. B., Demissie B. T., Dieterle M., Downie E. J., Drexler P., Fil'kov L. V., Glazier D. I., Gregor R., and Hamilton D.

Published
2013

18. Erratum: Experimental study of theγp→ηpreaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C) [Phys. Rev. C82, 035208 (2010)]

Author

McNicoll, E. F., primary, Prakhov, S., additional, Strakovsky, I. I., additional, Aguar-Bartolomé, P., additional, Akasoy, L. K., additional, Annand, J. R. M., additional, Arends, H. J., additional, Arndt, R. A., additional, Azimov, Ya. I., additional, Bantawa, K., additional, Beck, R., additional, Bekrenev, V. S., additional, Berghäuser, H., additional, Braghieri, A., additional, Branford, D., additional, Briscoe, W. J., additional, Brudvik, J., additional, Cherepnya, S., additional, Codling, R. F. B., additional, Demissie, B. T., additional, Downie, E. J., additional, Drexler, P., additional, Fil'kov, L. V., additional, Fix, A., additional, Freehart, B., additional, Glazier, D. I., additional, Gregor, R., additional, Hamilton, D., additional, Heid, E., additional, Hornidge, D., additional, Jaegle, I., additional, Jahn, O., additional, Jude, T. C., additional, Kashevarov, V. L., additional, Kellie, J. D., additional, Keshelashvili, I., additional, Kondratiev, R., additional, Korolija, M., additional, Kotulla, M., additional, Koulbardis, A. A., additional, Kruglov, S. P., additional, Krusche, B., additional, Lisin, V., additional, Livingston, K., additional, MacGregor, I. J. D., additional, Maghrbi, Y., additional, Manley, D. M., additional, Marinides, Z., additional, Martinez, M., additional, McGeorge, J. C., additional, McKinnon, B., additional, Mekterovic, D., additional, Metag, V., additional, Micanovic, S., additional, Middleton, D., additional, Mushkarenkov, A., additional, Nefkens, B. M. K., additional, Nikolaev, A., additional, Novotny, R., additional, Ostrick, M., additional, Otte, P. B., additional, Oussena, B., additional, Paris, M. W., additional, Pedroni, P., additional, Pheron, F., additional, Polonski, A., additional, Robinson, J., additional, Rosner, G., additional, Rostomyan, T., additional, Schumann, S., additional, Sikora, M. H., additional, Sober, D. I., additional, Starostin, A., additional, Suarez, I. M., additional, Supek, I., additional, Thiel, M., additional, Thomas, A., additional, Tiator, L., additional, Unverzagt, M., additional, Watts, D. P., additional, Werthmüller, D., additional, Workman, R. L., additional, Zamboni, I., additional, and Zehr, F., additional

Published
2011
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19. Experimental study of theγp→ηpreaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)

Author

McNicoll, E. F., primary, Prakhov, S., additional, Strakovsky, I. I., additional, Aguar-Bartolomé, P., additional, Akasoy, L. K., additional, Annand, J. R. M., additional, Arends, H. J., additional, Arndt, R. A., additional, Azimov, Ya. I., additional, Bantawa, K., additional, Beck, R., additional, Bekrenev, V. S., additional, Berghäuser, H., additional, Braghieri, A., additional, Branford, D., additional, Briscoe, W. J., additional, Brudvik, J., additional, Cherepnya, S., additional, Codling, R. F. B., additional, Demissie, B. T., additional, Downie, E. J., additional, Drexler, P., additional, Fil’kov, L. V., additional, Fix, A., additional, Freehart, B., additional, Glazier, D. I., additional, Gregor, R., additional, Hamilton, D., additional, Heid, E., additional, Hornidge, D., additional, Jaegle, I., additional, Jahn, O., additional, Jude, T. C., additional, Kashevarov, V. L., additional, Kellie, J. D., additional, Keshelashvili, I., additional, Kondratiev, R., additional, Korolija, M., additional, Kotulla, M., additional, Koulbardis, A. A., additional, Kruglov, S. P., additional, Krusche, B., additional, Lisin, V., additional, Livingston, K., additional, MacGregor, I. J. D., additional, Maghrbi, Y., additional, Manley, D. M., additional, Marinides, Z., additional, Martinez, M., additional, McGeorge, J. C., additional, McKinnon, B., additional, Mekterovic, D., additional, Metag, V., additional, Micanovic, S., additional, Middleton, D., additional, Mushkarenkov, A., additional, Nefkens, B. M. K., additional, Nikolaev, A., additional, Novotny, R., additional, Ostrick, M., additional, Otte, P. B., additional, Oussena, B., additional, Paris, M. W., additional, Pedroni, P., additional, Pheron, F., additional, Polonski, A., additional, Robinson, J., additional, Rosner, G., additional, Rostomyan, T., additional, Schumann, S., additional, Sikora, M. H., additional, Sober, D. I., additional, Starostin, A., additional, Suarez, I. M., additional, Supek, I., additional, Thiel, M., additional, Thomas, A., additional, Tiator, L., additional, Unverzagt, M., additional, Watts, D. P., additional, Werthmüller, D., additional, Workman, R. L., additional, Zamboni, I., additional, and Zehr, F., additional

Published
2010
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20. Measurement of the total cross section of the reactionK−p→Σ0γbetween 514 and 750 MeV/c

Author

Stanislaus, T. D. S., primary, Abaev, V. V., additional, Allen, D., additional, Allgower, C. E., additional, Alyea, J., additional, Bates, M. A., additional, Bekrenev, V. S., additional, Briscoe, W. J., additional, Cadman, R. V., additional, Comfort, J., additional, Corliss, R., additional, Craig, K., additional, Gibson, A., additional, Greene, R., additional, Grosnick, D. P., additional, Isenhower, D., additional, Kasprzyk, T. E., additional, Knecht, N., additional, Koetke, D. D., additional, Kozlenko, N. G., additional, Kruglov, S. P., additional, Kulbardis, A. A., additional, Lolos, G., additional, Lopatin, I. V., additional, Manley, D. M., additional, Manweiler, R., additional, Marušić, A., additional, McDonald, S., additional, Olmsted, J., additional, Papandreou, Z., additional, Peaslee, D. C., additional, Phaisangittisakul, N., additional, Price, J. W., additional, Ramirez, A. F., additional, Sadler, M., additional, Schlobohm, S., additional, Shafi, A., additional, Spinka, H., additional, Staudenmaier, H. M., additional, Strakovsky, I. I., additional, Supek, I., additional, Thoms, J., additional, and Wolf, S., additional

Published
2009
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21. Measurement of theK−p→Σ0π0reaction between 514 and 750 MeV/c

Author

Manweiler, R., primary, Cadman, R. V., additional, Spinka, H., additional, Abaev, V. V., additional, Allen, D., additional, Allgower, C. E., additional, Alyea, J., additional, Bates, M. A., additional, Bekrenev, V. S., additional, Briscoe, W. J., additional, Clajus, M., additional, Comfort, J., additional, Corliss, R., additional, Craig, K., additional, Gibson, A., additional, Greene, R., additional, Grosnick, D. P., additional, Isenhower, D., additional, Kasprzyk, T. E., additional, Knecht, N., additional, Koetke, D. D., additional, Kozlenko, N. G., additional, Kruglov, S. P., additional, Kulbardis, A. A., additional, Lolos, G., additional, Lopatin, I. V., additional, Manley, D. M., additional, Marus˘ić, A., additional, McDonald, S., additional, Olmsted, J., additional, Papandreou, Z., additional, Peaslee, D. C., additional, Phaisangittisakul, N., additional, Ramirez, A. F., additional, Sadler, M., additional, Shafi, A., additional, Stanislaus, T. D. S., additional, Staudenmaier, H. M., additional, Strakovsky, I. I., additional, Supek, I., additional, Thoms, J., additional, Tippens, W. B., additional, and Wolf, S., additional

Published
2008
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22. Measurement ofπ−p→π0nin the vicinity of the η threshold

Author

Starostin, A., primary, Prakhov, S., additional, Nefkens, B. M. K., additional, Abaev, V. V., additional, Allgower, C. E., additional, Bekrenev, V. S., additional, Briscoe, W. J., additional, Clajus, M., additional, Comfort, J. R., additional, Craig, K., additional, Grosnick, D., additional, Isenhower, D., additional, Knecht, N., additional, Koetke, D. D., additional, Kozlenko, N. G., additional, Kruglov, S. P., additional, Kulbardis, A. A., additional, Lolos, G., additional, Lopatin, I. V., additional, Manley, D. M., additional, Manweiler, R., additional, Marušić, A., additional, McDonald, S., additional, Olmsted, J., additional, Papandreou, Z., additional, Peaslee, D. C., additional, Phaisangittisakul, N., additional, Price, J. W., additional, Ramirez, A. F., additional, Sadler, M., additional, Shafi, A., additional, Spinka, H., additional, Stanislaus, T. D. S., additional, Staudenmaier, H. M., additional, Supek, I., additional, and Tippens, W. B., additional

Published
2005
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23. Measurement of spin rotation parameter A+ in π +p elastic scattering

Author

Collaboration, Itep-Pnpi, primary, Alekseev, I. G., additional, Bobchenko, B. M., additional, Budkovsky, P. E., additional, Kanavets, V. P., additional, Koroleva, L. I., additional, Martynov, V. I., additional, Morozov, B. V., additional, Nesterov, V. M., additional, Platonov, V. V., additional, Ryltsov, V. V., additional, Sakharov, V. A., additional, Sulimov, A. D., additional, Svirida, D. N., additional, Zhurkin, V. V., additional, Abaev, V. V., additional, Bazhanov, N. A., additional, Bekrenev, V. S., additional, Beloglazov, Yu. A., additional, Filimonov, E. A., additional, Kovalev, A. I., additional, Kozlenko, N. G., additional, Kruglov, S. P., additional, Kulbardis, A. A., additional, Lopatin, I. V., additional, Schedrov, V. A., additional, Sumachev, V. V., additional, and Trautman, V. Yu., additional

Published
1996
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25. Measurement of the Total and Differential Cross Sections for the Reaction π[sup –]p → ηn with the Crystal Ball Detector.

Author

Kozlenko, N. G., Abaev, V. V., Bekrenev, V. S., Kruglov, S. P., Koulbardis, A. A., Lopatin, I. V., Starostin, A. B., Draper, B., Hayden, S., Huddleston, J., Isenhower, D., Robinson, C., Sadler, M., Allgower, C., Cadman, R., Spinka, H., Comfort, J., Craig, K., and Ramirez, A.

Subjects
NUCLEAR cross sections, NUCLEAR reactions
Abstract

The first results obtained in 1998 by the Crystal Ball collaboration from a measurement of the total and differential cross sections for the reaction π[sup –]p → ηn are presented. These new experimental results for the total cross sections are compared with the predictions of the K-matrix model for pion–nucleon scattering. The angular distribution at momenta near the reaction threshold (685 MeV/c) is determined by the S-wave contribution. The P-wave contribution begins to manifest itself from a momentum of 720 MeV/c.© 2003 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]

Published
2003
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27. Measurement of the polarization parameterP inπ+p elastic scattering in the region of low-lying pion-nucleon resonances

Author

Abaev, V. V., Bekrenev, V. S., Beloglazov, Yu. A., Gaditsky, V. G., Kovalev, A. I., Kruglov, S. P., Kulbardis, A. A., Lopatin, I. V., Prokofiev, A. N., Sumachev, V. V., Trautman, V. Yu., Fedorova-Koval, E. P., Filimonov, E. A., and Shvedchikov, A. V.

Abstract

This paper presents the results of an experiment in which the polarization parameterP in p+p elastic scattering has been measured in the energy range from 335 to 580 MeV. The experiment was performed on a pion channel of the LNPI synchrocyclotron using a polarized proton target and wire spark chambers with magnetostrictive read-out. The results have substantially higher precision in comparison with the most of other experiments in this energy range and allow to determine unambiguously the shape of angular dependenceP(?*) in the whole investigated region. New phase-shift analysis of p+p scattering data has been performed. The results of this experiment were used also to check isospin invariance.

Published
1983
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30. [formula omitted] and [formula omitted] photoproduction with fine center-of-mass energy resolution.

Author

Jude, T. C., Glazier, D. I., Watts, D. P., Aguar-Bartolomé, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., Bantawa, K., Beck, R., Bekrenev, V. S., Berghäuser, H., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J., Cherepnya, S., Demissie, B. T., Dieterle, M., Downie, E. J., and Fil'kov, L. V.

Subjects
*CENTER of mass, *NUCLEAR energy, *NUCLEAR cross sections, *PHOTONS, *CALORIMETERS, *RADIOACTIVE decay
Abstract

Measurements of γp→K+Λ and γp→K+Σ0 cross-sections have been obtained with the photon tagging facility and the Crystal Ball calorimeter at MAMI-C. The measurement uses a novel K+ meson identification technique in which the weak decay products are characterized using the energy and timing characteristics of the energy deposit in the calorimeter, a method that has the potential to be applied at many other facilities. The fine center-of-mass energy (W) resolution and statistical accuracy of the new data results in a significant impact on partial wave analyses aiming to better establish the excitation spectrum of the nucleon. The new analyses disfavor a strong role for quark-diquark dynamics in the nucleon. [ABSTRACT FROM AUTHOR]

Published
2014
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31. Measurement of the ¹H(γ, p)π0 Reaction Using a Novel Nucleon Spin Polarimeter.

Author

Sikora, M. H., Watts, D. P., Glazier, D. I., Aguar-Bartolomé, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., Bantawa, K., Beck, R., Bekrenev, V. S., Berghäuser, H., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J., Cherepnya, S., Codling, R. F. B., Demissie, B. T., Downie, E. J., and Drexler, P.

Subjects
*PARTICLES (Nuclear physics), *NUCLEAR spin polarization, *POLARISCOPE, *NUCLEAR excitation, *PARTICLE physics
Abstract

We report the first large-acceptance measurement of polarization transfer from a polarized photon beam to a recoiling nucleon. The measurement pioneers a novel polarimetry technique, which can be applied to many other nuclear and hadron physics experiments. The commissioning reaction of ¹H(γ, p)π0 in the range 0.4 < Eγ < 1.4 GeV validates the technique and provides essential new data to constrain the excitation spectrum of the nucleon. [ABSTRACT FROM AUTHOR]

Published
2014
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