Verlag des Forschungszentrums Jülich

JUEL-3922
Zychor, Iza
2nd ANKE Workshop on "Strangeness Production in pp and pA Interactions at ANKE"
VIII, 339 S., 2001



The spectrometer ANKE hag been put into operation at the accelerator COSY of the Forschungszentrum Jülich in spring 1998. An initial scientific goal is to study K⁺-production in pA collisions at subthreshold energies far below the free NN-threshold at T_p = 1.58 GeV. This requires the identification of K⁺-mesons in a background of pions and protons, about 10⁶ times more intense. In this paper the sophisticated detection system and the software procedures for kaon identification are described. With the help of TOF, energy-loss and range measurements as well as the track information from wire chambers, it is possible to measure d²σ/dΩdp for deep subthreshold K⁺ production at beam energies down to T_p = 1.0 GeV.

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