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Measurements of the spin rotation parameterR in high energy elastic scattering and helicity amplitudes at Serpukhov energies

  • Symposium on “Hadron-Hadron Scattering at High Energies”
  • Published:
Czechoslovak Journal of Physics B Aims and scope

Abstract

The spin rotation parameterR in pp and π+ p elastic scattering at 45 GeV/c has been measured at the Serpukhov accelerator, for ¦t¦ ranging from 0·2 to 0·5 (GeV/c)2. The results are presented, together with previousR measurements at lower energies, and are compared with the predictions of Regge pole models. The equality of the values forR in proton-proton and pion-proton scattering, within the experimental errors, is a test of factorization of the residues.

Ans-channel helicity amplitude analysis for pion-nucleon scattering at 40 GeV/c is made using all available data, Significant results are obtained for the isoscalar exchange amplitudes. The helicity flip in isoscalar exchange is non negligible. The energy dependence of this amplitude, at 6, 16 and 40 GeV/c, is compared with predictions of Reggs pole models.

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Authors and Affiliations

  1. Centre d'Etudes Nucléaires, Saclay, B.P. 2, 91190, Gif-sur-Yvette, France

    J. Pierrard, C. Bruneton, J. Bystricky, G. Cozzika, J. Deregel, Y. Ducros, A. Gaidot, F. Khantine-Langlois, F. Lehar, A. de Lesquen, J. P. Merlo, S. Miyashita, J. Movchet, J. C. Raoul & L. van Rossum

  2. Institute of High Energy, Serpukhov, USSR

    A. Derevschikov, Yu. Matulenko, A. Meschanin, S. B. Nurushev, A. Saraykin, V. Siksin, E. Smirnov & V. Solovyanov

  3. Joint Institute of Nuclear Research, Dubna, USSR

    Yu. M. Kazarinov, M. Yu. Kazarinov, B. Khatchaturov, I. Potashnikova & J. Strakhota

  4. Institute of Theoretical and Experimental Physics, Moscow, USSR

    V. P. Kanavets

Authors
  1. J. Pierrard
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  2. C. Bruneton
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  3. J. Bystricky
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  4. G. Cozzika
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  5. J. Deregel
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  6. A. Derevschikov
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  7. Y. Ducros
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  8. A. Gaidot
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  9. Yu. M. Kazarinov
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  10. M. Yu. Kazarinov
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  11. V. P. Kanavets
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  12. F. Khantine-Langlois
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  13. B. Khatchaturov
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  14. F. Lehar
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  15. A. de Lesquen
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  16. Yu. Matulenko
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  17. J. P. Merlo
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  18. A. Meschanin
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  19. S. Miyashita
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  20. J. Movchet
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  21. S. B. Nurushev
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  22. I. Potashnikova
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  23. J. C. Raoul
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  24. L. van Rossum
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  25. A. Saraykin
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  26. V. Siksin
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  27. E. Smirnov
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  28. V. Solovyanov
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  29. J. Strakhota
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Pierrard, J., Bruneton, C., Bystricky, J. et al. Measurements of the spin rotation parameterR in high energy elastic scattering and helicity amplitudes at Serpukhov energies. Czech J Phys 26, 13–24 (1976). https://doi.org/10.1007/BF01595091

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  • DOI: https://doi.org/10.1007/BF01595091

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