Effect of hyperon channels in low-energyK
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d scattering |
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Authors: | L H Schick B F Gibson |
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Institution: | 1. Department of Physics and Astronomy, University of Wyoming, Laramie, USA 2. Theoretical Division, Los Alamos Scientific Laboratory, Los Alamos, USA
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Abstract: | Within the framework of a Faddeev formalism and an implicit hyperon channel approximation, we have calculatedK ? d elastic, total, and reaction cross sections for incident kaon laboratory momenta up to 120 Mev/c. We have used as input two different (slightly modified) multichannelM matrix fits to low-energy¯KN scattering, each of which contains explicitly theπ Y channels, as well as a single channel representation of the¯KN interaction in which the hyperon channels appear only through their contributions to the imaginary parts of the¯KN scattering lengths. TheK ? d cross sections obtained with the single channel¯KN input differ by only some 10% from those for which we used the multichannel¯KN input. TheK ? d cross sections calculated using¯KN input parameters from each of the two separateM matrix fits differ across the entire momentum range investigated by 25–35%. |
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