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Energy moments for quark jets at PETRA

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Zeitschrift für Physik C Particles and Fields

Abstract

Measurements of energy moments for single quark jets at c.m. energies between 12 and 31.6 GeV are presented. The data, corrected for detector effects and initial state radiation, are compared to QCD predictions in the leading log approximation. Non perturbative effects are found to be moderate, and they strongly decrease with increasing c.m. energy. Once partly corrected for the presence of these fragmentation effects, our data agree well with all features of the leading log prediction, and in particular with the variation of the strong coupling constant over a wide range of energies and momentum transfers.

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Supported by the BMFT, Germany

Partially supported by the Norwegian Council for Science and Humanities

Roma University, partially supported by I.N.F.N., Sezione di Rome, Italy

Now at CERN

Supported by the UK Science and Engineering Research Council

Now at LBL

Partially supported by Department of Energy, USA

Partially supported by the Israeli Academy of Sciences and Humanities-Basic Research Foundation.

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PLUTO Collaboration., Berger, C., Genzel, H. et al. Energy moments for quark jets at PETRA. Z. Phys. C - Particles and Fields 19, 205–212 (1983). https://doi.org/10.1007/BF01572249

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  • DOI: https://doi.org/10.1007/BF01572249

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