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Polarization parameters in the reactions π− p ↑→ηn and π− p ↑→η′n at 40 GeV/c

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Zeitschrift für Physik C Particles and Fields

Abstract

The polarization parameter in the reactions π− p→ηn and π− p→η′n at 40 GeV/c with −t ranging from 0 to 2.6 (GeV/c)2 and 1.0 (GeV/c)2, respectively, was measured in experiments using a propanediol polarized target. Only gamma particles from the neutral meson decay were detected. The polarization parameter of the first reaction turns out to be negative in a widet interval (0.05<−t<1.6 (GeV/c)2) and probably changes its sign at larger values oft. The average value of the polarization parameter of the second reaction is equal to −17±8)% in the region 0.05<−t<0.5 (GeV/c)2.

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Authors and Affiliations

  1. Institute for High Energy Physics, SU-142284, Serpukhov, USSR

    V. D. Apokin, Yu. I. Arestov, I. A. Avyakumov, N. I. Belikov, A. A. Derevschikov, O. A. Grachev, Yu. A. Mtulenko, A. P. Meschanin, A. A. Morozov, A. I. Mysnik, S. B. Nurushev, A. F. Prudkoglyad, V. L. Rykov, V. V. Siksin, L. F. Solviev, V. L. Solovianov & A. N. Vasiliev

  2. Joint Institute for Nuclear Research, SU-141980, Dubna, USSR

    N. S. Borisov, Yu. M. Kazarinov, B. A. Khachaturov, M. Yu. Liburg, V. N. Matafonov, A. B. Neganov & Yu. A. Usov

  3. Institute for High Energy Physics, Tbilisi State University, SU-380086, Tbilisi, USSR

    Yu. Sh. Bagaturia, L. N. Glonti, G. C. Macharashvili & T. M. Sakhelashvili

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  1. V. D. Apokin
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  2. Yu. I. Arestov
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  3. I. A. Avyakumov
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  4. Yu. Sh. Bagaturia
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  5. N. I. Belikov
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  6. N. S. Borisov
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  7. A. A. Derevschikov
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  8. L. N. Glonti
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  9. O. A. Grachev
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  10. Yu. M. Kazarinov
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  11. B. A. Khachaturov
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  12. M. Yu. Liburg
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  13. G. C. Macharashvili
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  14. V. N. Matafonov
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  15. Yu. A. Mtulenko
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  16. A. P. Meschanin
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  17. A. A. Morozov
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  18. A. I. Mysnik
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  19. A. B. Neganov
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  20. S. B. Nurushev
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  21. A. F. Prudkoglyad
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  22. V. L. Rykov
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  23. T. M. Sakhelashvili
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  24. V. V. Siksin
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  25. L. F. Solviev
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  26. V. L. Solovianov
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  27. Yu. A. Usov
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  28. A. N. Vasiliev
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Apokin, V.D., Arestov, Y.I., Avyakumov, I.A. et al. Polarization parameters in the reactions π− p ↑→ηn and π− p ↑→η′n at 40 GeV/c. Z. Phys. C - Particles and Fields 35, 173–179 (1987). https://doi.org/10.1007/BF01408446

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  • DOI: https://doi.org/10.1007/BF01408446

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