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Production ofK 0 and Λ in hadronic Z decays

  • Experimental Physics
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Zeitschrift für Physik C Particles and Fields

Abstract

Measurements of the inclusive cross-sections forK 0 and Λ production in hadronic decays of the Z are presented together with measurements of two-particle correlations within pairs of Λ andK 0. The results are compared with predictions from the hadronization models Jetset, based on string fragmentation, and Herwig, based on cluster decays. TheK 0 spectrum is found to be harder than predicted by both models, while the Λ spectrum is softer than predicted. The correlation measurements are all reproduced well by Jetset, while Herwig misses some of the qualitative features and overestimates the size of the\(\Lambda \bar \Lambda \) correlation. Finally, the possibility of Bose-Einstein correlation in theK 0 S K 0 S system is discussed.

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Supported by CICYT, Spain

Supported by the National Science Foundation of China

Supported by the Danish Natural Science Research Council

Supported by the UK Science and Engineering Research Council

Supported by the US Department of Energy, contract DE-AC02-76ER00881

On leave from Universitat Autonoma de Barcelona, Barcelona, Spain

Supported by the US Department of Energy, contract DE-FG05-92ER40742

Supported by the US Department of Energy, contract DE-FC05-85ER250000

Supported by the Bundesministerium für Forschung und Technologie, Fed. Rep. of Germany

Supported by the Direction des Sciences de la Matière, C.E.A

Supported by Fonds zur Förderung der wissenschaftlichen Forschung, Austria

Supported by the US Department of Energy, grant DE-FG03-92ER40689

Partially supported by Colciencias, Colombia

Deceased

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ALEPH Collaboration., Buskulic, D., Casper, D. et al. Production ofK 0 and Λ in hadronic Z decays. Z. Phys. C - Particles and Fields 64, 361–373 (1994). https://doi.org/10.1007/BF01560096

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  • DOI: https://doi.org/10.1007/BF01560096

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