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Neutral strange particle production in deep inelastic scattering at HERA

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Zeitschrift für Physik C Particles and Fields

Abstract

This paper presents measurements ofK 0 and Λ production in neutral current, deep inelastic scattering of 26.7 GeV electrons and 820 GeV protons in the kinematic range 10<Q 2<640 GeV2, 0.0003<x<0.01, andy>0.04. Average multiplicities forK 0 and Λ production are determined for transverse momentap T>0.5 GeV and pseudorapidities |η|<1.3. The multiplicities favour a stronger strange to light quark suppression in the fragmentation chain than found ine + e experiments. The production properties ofK 0' s in events with and without a large rapidity gap with respect to the proton direction are compared. The ratio of neutralK 0' s to charged particles per event in the measured kinematic range is, within the present statistics, the same in both samples.

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Supported by Worldlab, Lausanne, Switzerland

Supported by EU HCM contract ERB-CHRX-CT93-0376

on leave of absence

supported by DAAD/HSPII-AUFE

supported by DAAD and European Community Program PRAXIS XXI

supported by the European Community

also supported by DESY

also supported by NSERC

partially supported by CAM

on leave and partially supported by DESY 1993-95

supported by a MINERVA Fellowship

partially supported by DESY

supported by the Natural Sciences and Engineering Research Council of Canada (NSERC)

supported by the FCAR of Québec, Canada

supported by the German Federal Ministry for Research and Technology (BMFT)

supported by the MINERVA Gesellschaft für Forschung GmbH, and by the Israel Academy of Science

supported by the German Israeli Foundation, and by the Israel Academy of Science

supported by the Italian National Institute for Nuclear Physics (INFN)

supported by the Japanese Ministry of Education, Science and Culture (the Monbusho) and its grants for Scientific Research

supported by the Korean Ministry of Education and Korea Science and Engineering Foundation

supported by the Netherlands Foundation for Research on Matter (FOM)

supported by the Polish State Committee for Scientific Research (grant No. SPB/P3/202/93) and the Foundation for Polish- German Collaboration (proj. No. 506/92)

supported by the Polish State Committee for Scientific Research (grant No. PB 861/2/91 and No. 2 2372 9102, grant No. PB 2 2376 9102 and No. PB 2 0092 9101)

partially supported by the German Federal Ministry for Research and Technology (BMFT)

supported by the German Federal Ministry for Research and Technology (BMFT), the Volkswagen Foundation, and the Deutsche Forschungsgemeinschaft

supported by the Spanish Ministry of Education and Science through funds provided by CICYT

supported by the Particle Physics and Astronomy Research Council

supported by the US Department of Energy

supported by the US National Science Foundation

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ZEUS Collaboration., Derick, M., Krakauer, D. et al. Neutral strange particle production in deep inelastic scattering at HERA. Z. Phys. C - Particles and Fields 68, 29–42 (1995). https://doi.org/10.1007/BF01579802

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  • DOI: https://doi.org/10.1007/BF01579802

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