Possible Effect of K̄N Reactions on KN Scattering
Abstract
Approximate Pwave dispersion relations for KN scattering are considered, under the assumption that the KΛN and KΣN interactions are of the odd intrinsicparity, Yukawa type. If the crossing terms (which involve the Pwave K̄N amplitudes) are neglected, the predictions of the equations are contradicted by the experimental evidence. However, the presence of virtual pionhyperon states may enhance the K̄N amplitudes sufficiently that they play an important role in the equations. It is shown that if the isotopic spin 1, P_{32} K̄N absorptive amplitude is particularly strong, the contradiction with experiment may be removed. The possibility of evenparity Kbaryon reactions is discussed briefly.
 Publication:

Physical Review
 Pub Date:
 January 1961
 DOI:
 10.1103/PhysRev.121.291
 Bibcode:
 1961PhRv..121..291C