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Hauenstein, F.; Clement, H.; Dzhygadlo, R.; Eyrich, W.; Gillitzer, A.; Grzonka, D.; Jowzaee, S.; Ritman, J.; Roderburg, E.; Röder, M.; Wintz, P.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 05/2016, Volume: 817Journal Article
The spin transfer from vertically polarized beam protons to Λ or Σ hyperons of the associated strangeness production p→p→pK+Λ and p→p→pK0Σ+ is described with the depolarization coefficient DNN. As the polarization of the hyperons is determined by their weak decays, detectors, which have a large acceptance for the decay particles, are needed. In this paper a formula is derived, which describes the depolarization coefficient DNN by count rates of a 4π detector. It is shown that formulas, which are given in publications for detectors with restricted acceptance, are specific cases of this formula for a 4π detector.
