6533b85efe1ef96bd12c0d61

RESEARCH PRODUCT

Inclusive measurements of the K+- and p / anti-p production in hadronic Z0 decays

Delphi CollaborationMaría Victoria Castillo GiménezAntonio Ferrer SoriaEmilio Higón Rodríguez

subject

High Energy Physics::ExperimentCol·lisionadors d'hadronsDetectors de radiacióPartícules (Física nuclear)

description

This analysis, based on a sample of 170000 hadronic Z0 decays, provides a measurement of the K± and p/View the MathML source differential cross sections which is compared to string- and cluster fragmentation models. The total multiplicities for K± and p/View the MathML source per hadronic event were found to be: NK = 2.26 ± 0.18 and Np = 1.07 ± 0.14. The positions ξ* of the maxima of the differential cross sections as a function of ξ = ln(1/xp) for K± and p/View the MathML source were determined to be 2.63 ± 0.07 and 2.96 ± 0.16 respectively. A comparison of the ξ* values for various identified particles measured at LEP with the prediction of the Modified Leading Logarithm Approximation with Local Parton Hadron Duality model has been performed. The measured ξ* position as a function of the hadron mass, after corrections due to particle decays, is in agreement with the model calculation.

10.1016/0550-3213(95)00190-4http://dx.doi.org/10.1016/0550-3213(95)00190-4