Coupled-channel effects in kaon pair production
نویسنده
چکیده
Two coupled channel effects connected with kaon pair production in proton-proton collisions are discussed. (1) Although there is ample evidence that the antikaon is strongly attracted to the recoil protons in pp → Kp {K−p}, residual effects of the KK interaction are seen, including a possible cusp at the KK̄ threshold. This is investigated within a simple K-matrix approach. (2) The production rates and invariant mass distributions for pp → Kp {K−p} and pp → Kp {πΣ} are related using a separable potential description of the coupled Kp/πΣ channels. It can be plausibly argued that this pair of reactions is driven through the production of the Λ(1405).
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