YN scattering data: KA71
The experiment:
Elastic Λ p events have been recorded in an exposure of the
LRL 25-inch bubble chamber to a K- beam.
By using a platinum plate
mounted inside the bubble chamber the number of observable
Λ p interactions was enhanced.
260000 photographs were scanned; 222 events have been detected.
The data:
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Λ p → Λ p
|
total elastic cross section (SGT)
|
|
|
momentum range number of SGT [mb]
[MeV/c] events
200 - 400 24.0 +/- 5.0
400 - 600 9.0 +/- 2.0
600 - 700 16.5 +/- 3.5
700 - 800 10.8 +/- 2.7
800 - 900 10.2 +/- 2.7
900 - 1000 9.0 +/- 2.7
1000 - 1200 13.0 +/- 2.4
1200 - 1400 11.5 +/- 2.6
1400 - 1600 12.0 +/- 3.2
1600 - 1800 13.0 +/- 3.8
1800 - 2000 15.5 +/- 8.6
|
|
Λ p → Σ0 p
|
total cross section (SGT)
|
|
|
momentum range number of SGT [mb]
[MeV/c] events
650 - 700 2.8 +/- 2.0
700 - 800 7.5 +/- 2.5
800 - 900 10.6 +/- 3.0
900 - 1000 5.0 +/- 2.0
1000 - 1200 3.5 +/- 1.5
1200 - 1400 3.8 +/- 1.7
1400 - 1600 2.8 +/- 1.7
1600 - 2000 4.8 +/- 3.4
|
Notes:
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The numbers were read from a graph.
-
Some information on the angular distributions of the events is given
in graphs.
