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28 April 2017

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YN scattering data: AN75

Authors: K.J. Anderson, N.M. Gelfand, J. Keren, T.H. Tan
Reference: Phys. Rev. D 11 (1975), 473.
Group: Chicago

The experiment:

The elastic scattering of Λ on protons is investigated. Λ particles are produced in the interaction of 25 GeV/c protons with the nucleons of a platinum plate which is placed in the 80-inch hydrogen bubble-chamber at Brookhaven National Laboratory. Approximately 220000 pictures are taken and scanned. 109 Elastic scattering events have been found in the 1-17 GeV/c interval. Of these 69 have been used for the final analysis.

The data:

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

 1000 -  2000           22      22.3 +/- 5.8
 2000 -  3000           16      16.3 +/- 4.8
 3000 -  4000           12      14.4 +/- 4.8
 4000 -  5000            7       7.7 +/- 3.2
 5000 -  6000            4       6.2 +/- 3.3
 6000 - 17000            8       4.1 +/- 1.6

Notes:


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