Abstract
Hyperbolic dispersion relations are used to examine elasticKN and tintin1N amplitudes in the resonance region, and to extrapolate them to the annihilation channel. By evaluating the relations on a set of paths interior to the elastic channel physical regions, a spin separation oft-channel contributions is effected, and resonance couplings deduced. The results show clear evidence for effects attributable to exchanges withJ≦3, several of which have not previously been isolated. The special problems associated with the isoscalarS-wave states are discussed, and an estimate made of the ɛ-S * mixing angle.
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Bradford, R.A.W., Martin, B.R. t-Channel couplings in Kaon-nucleon scattering. Z. Phys. C - Particles and Fields 1, 357–368 (1979). https://doi.org/10.1007/BF01546975
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DOI: https://doi.org/10.1007/BF01546975