Final-State Interactions in the Process pp -> pKLambda

Abstract

The possibility to determine the pLambda scattering length from the final-state interaction in the reaction pp->pKLambda is investigated experimentally. From a transversely polarized measurement, the K analyzing power (A_N) which, in principle, allows one to extract the spin triplet scattering length is studied. An unexpected energy dependence of the forward/backward symmetric part of A_N is found. The influence of N*-resonances on the pLambda invariant mass spectrum is investigated by exploiting the large acceptance for the process pp->pKLambda->pKppi and is found to be the main source of uncertainty for determining the pLambda scattering length.

References in corpus (4)

• Hyperon-nucleon interaction at next-to-leading order in chiral effective field theory
• Hyperon-nucleon interactions - a chiral effective field theory approach
• Study of the $\Lambda p$ Interaction Close to the ${\Sigma }^{+}n$ and ${\Sigma }^{0}p$ Thresholds
• On the SigmaN cusp in the pp -> pK+Lambda reaction

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• The legacy of the experimental hadron physics programme at COSY
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