Hyperon production in pn-induced reactions at
COSY-11
Abstract
It is proposed to extend the measurements of the associated
strangeness production via the hyperon channel towards the
pn-induced reactions using deuterium as a neutron
target.
To perform such measurements an additional neutron detector was
installed at the COSY-11 setup.
The following reactions should be measurable with acceptable
detection efficiencies at COSY-11:
- p d -> K+ Lambda p n
- p d -> K+ Sigma- p p
- p d -> K+ Sigma0 p n
A comparison with the corresponding pp-induced reactions
will allow to separate the production rates at a proton from the
production rates at a neutron.
As a first step we request for one week of beam time to check the
background and the possible missing mass resolution which is
limited in reaction 1 and 3 by the newly installed neutron
detector.
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