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Measurements of the neutron-proton total cross section difference Δσ p (np) at 1.59, 1.79 and 2.20 GeVat 1.59, 1.79 and 2.20 GeV

  • Part II
  • Few-Body Systems
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Czechoslovak Journal of Physics Aims and scope

Abstract

New results for the np spin-dependent total cross section difference Δσ p (np) at neutron beam kinetic energies of 1.59, 1.79 and 2.20 GeV are presented. Measurements of the Δσ p (np) energy dependence were carried out at the Synchrophasotron of the Laboratory of High Energies of the Joint Institute for Nuclear Research in Dubna. The values of Δσ L were measured as a difference between the np total cross sections for parallel and antiparallel beam and target polarizations, both oriented along the beam momentum. A fast decrease of Δσ p (np) with increasing energy above 1.1 GeV, as it was first seen from our previous data, was confirmed. The new results are also compared with model predictions and with the phase shift analysis fits. The Δσ L quantities for isosinglet state I=0, deduced from the measured values of Δσ p (np) and known Δσ p (pp) data, are given.

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Authors and Affiliations

  1. Laboratory of High Energies, JINR, 141980, Dubna, Moscow region, Russia

    V. I. Sharov, S. A. Zaporozhets, N. G. Anischenko, V. D. Bartenev, N. A. Blinov, Yu. T. Borzunov, Yu. P. Bushuev, E. V. Chernykh, S. A. Dolgii, V. M. Drobin, V. V. Fimushkin, L. B. Golovanov, A. V. Karpunin, A. D. Kirillov, A. D. Kovalenko, V. P. Ladygin, P. K. Maniakov, G. P. Nikolaevsky, A. A. Nomofilov, Yu. K. Pilipenko, N. M. Piskunov, P. A. Rukoyatkin, Yu. A. Shishov, V. B. Shutov, A. Yu. Starikov, L. N. Strunov, A. L. Svetov, A. P. Tsvinev, V. I. Volkov & V. P. Yershov

  2. Laboratory of Nuclear Problems, JINR, 141980, Dubna, Moscow region, Russia

    L. S. Azhgirey, N. S. Borisov, L. V. Budkin, V. F. Burinov, A. N. Fedorov, M. Finger, M. Finger Jr., A. Janata, B. A. Khachaturov, V. G. Kolomiets, E. S. Kuzmin, A. B. Lazarev, V. N. Matafonov, A. B. Neganov, I. L. Pisarev, Yu. A. Plis, O. N. Shchevelev, S. N. Shilov, M. Slunecka, V. Slunečková, G. D. Stoletov, Yu. A. Usov & V. N. Zhmyrov

  3. Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 18000, Praha 8, Czech Republic

    M. Finger & M. Slunecka

  4. Nuclear Research Institute, Academy of Sciences of the Czech Republic, 25068, Řež, Czech Republic

    A. Janata

  5. Frank Laboratory of Neutron Physics, JINR, 141980, Dubna, Moscow region, Russia

    S. B. Borzakov, L. P. Chernenko & Tz. Panteleev

  6. Bulgarian Academy of Sciences, Institute for Nuclear Research and Nuclear Energy, Tsarigradsko shaussee boulevard 72, 1784, Sofia, Bulgaria

    Tz. Panteleev

  7. High Energy Physics Division, Petersburg Nuclear Physics Institute, 188350, Gatchina, Russia

    N. A. Bazhanov, A. I. Kovalev, A. N. Prokofiev, V. A. Shchedrov & A. A. Zhdanov

  8. Russian Scientific Center “Kurchatov Institute”, 123182, Moscow, Russia

    B. P. Adiasevich, V. G. Antonenko & Yu. P. Polunin

  9. Institute for Nuclear Research, Russian Academy of Sciences, 117312, Moscow, Russia

    G. M. Gurevich

  10. Moscow State University, Faculty of Physics, 119899, Moscow, Russia

    A. A. Kochetkov & M. S. Nikitina

  11. Kharkov Institute of Physics and Technology, 310108, Kharkov, Ukraine

    A. P. Dzyubak & A. A. Lukhanin

  12. DAPNIA, CEA/Saclay, 91191, Gif-sur-Yvette Cedex, France

    G. Durand, F. Lehar & A. de Lesquen

Authors
  1. V. I. Sharov
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  2. S. A. Zaporozhets
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  3. N. G. Anischenko
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  4. V. D. Bartenev
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  6. Yu. T. Borzunov
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  7. Yu. P. Bushuev
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  8. E. V. Chernykh
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  9. S. A. Dolgii
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  10. V. M. Drobin
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  11. V. V. Fimushkin
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  16. V. P. Ladygin
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  17. P. K. Maniakov
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  18. G. P. Nikolaevsky
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  19. A. A. Nomofilov
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  20. Yu. K. Pilipenko
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  21. N. M. Piskunov
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  22. P. A. Rukoyatkin
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  23. Yu. A. Shishov
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  24. V. B. Shutov
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  26. L. N. Strunov
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  27. A. L. Svetov
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  28. A. P. Tsvinev
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  29. V. I. Volkov
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  30. V. P. Yershov
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  31. L. S. Azhgirey
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  32. N. S. Borisov
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  34. V. F. Burinov
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  35. A. N. Fedorov
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  36. M. Finger
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  37. M. Finger Jr.
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  38. A. Janata
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  39. B. A. Khachaturov
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  40. V. G. Kolomiets
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  41. E. S. Kuzmin
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  42. A. B. Lazarev
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  43. V. N. Matafonov
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Sharov, V.I., Zaporozhets, S.A., Anischenko, N.G. et al. Measurements of the neutron-proton total cross section difference Δσ p (np) at 1.59, 1.79 and 2.20 GeVat 1.59, 1.79 and 2.20 GeV. Czech J Phys 50 (Suppl 1), 325–330 (2000). https://doi.org/10.1007/s10582-000-0070-5

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  • DOI: https://doi.org/10.1007/s10582-000-0070-5

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