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28 June 2017

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YN scattering data: AL64

Authors: G. Alexander, U. Karshon, A. Shapir, G. Yekutieli, R. Engelmann, H. Filthuth, A. Fridman, A. Minguzzi-Rangi
Reference: Phys. Rev. Lett. 13 (1964), 484.
Group: Heidelberg/Rehovoth

The experiment:

50 elastic Λ p events have been recorded in an exposure of the Saclay 81 cm hydrogen bubble chamber at CERN to a beam of stopping K- mesons. 20.550 films were scanned; XX events were found of which 44 events were used in the final analysis.
The presented results were `preliminary'; the final results are presented in AL68

The data:

Λ p → Λ p total elastic cross section (SGT)
momentum range   effective mean     number of    SGT [mb]
    [MeV/c]     momentum [MeV/c]     events

  120 - 190          162               10       118 +/- 37
  190 - 250          226               23       100 +/- 21
  250 - 320          267               11        67 +/- 20
F/B ratio
momentum range      number of       F/B
    [MeV/c]          events

  220 - 320            52        2.1 +/- 0.8

Notes:


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