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High-energy hadron spin-flip amplitude at small momentum transfer and new A N data from RHIC

  • J.-R. CudellEmail author
  • E. Predazzi
  • O. V. Selyugin
Article

Abstract.

In the case of elastic high-energy hadron-hadron scattering, the impact of the large-distance contributions on the behaviour of the slopes of the spin-non-flip and of the spin-flip amplitudes is analysed. It is shown that the long tail of the hadronic potential in impact parameter space leads to a value of the slope of the reduced spin-flip amplitude larger than that of the spin-non-flip amplitude. This effect is taken into account in the calculation of the analysing power in proton-nucleus reactions at high energies. It is shown that the preliminary measurement of A N for p 12C obtained by the E950 Collaboration indeed favours a spin-flip amplitude with a large slope. Predictions for A N at \(p_L = 250 \ \) GeV/c are given.

Keywords

Parameter Space Analyse Power Momentum Transfer Impact Parameter Preliminary Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.Institut de PhysiqueUniversité de LiégeSart Tilman, LiégeBelgium
  2. 2.Dipartimento di Fisica TeoricaUniversitá di Torino and Sezione INFN di TorinoTorinoItaly

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