http://nn-online.org

22 August 2017

info@nn-online.org

YN scattering data: AL66

Authors: G. Alexander, O. Benary, U. Karshon, A. Shapira, G. Yekutieli, R. Engelmann, H. Filthuth, A. Fridman, B. Schiby
Reference: Phys. Lett. 19 (1966), 715
Group: Heidelberg/Rehovoth

The experiment:

238 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.
10.000 frames were scanned, 256 events were found of which 238 were accepted for 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
momentum range   effective mean     number of    SGT [mb]
    [MeV/c]     momentum [MeV/c]     events

  120 - 150          136               22     214 +/- 46
  150 - 180          165               33     156 +/- 27
  180 - 210          195               52     144 +/- 20
  210 - 240          224               56      92 +/- 12
  240 - 270          252               60      76 +/- 10
  270 - 320          288               15      38 +/- 10
F/B ratio
momentum range   effective mean     number of    F/B
    [MeV/c]     momentum [MeV/c]     events

  180 - 210          195               52     1.01 +/- 0.31
  210 - 240          224               56     1.11 +/- 0.31
  240 - 270          252               60     1.28 +/- 0.33
  270 - 320          288               15     1.15 +/- 0.59

Notes:

There are tables for -α*P these are not (yet) included here.

http://nn-online.org 22 August 2017 info@nn-online.org