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Quantum ChromodynamicsHigh Energy Experiments and Theory$
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Günther Dissertori, Ian G. Knowles, and Michael Schmelling

Print publication date: 2009

Print ISBN-13: 9780199566419

Published to Oxford Scholarship Online: January 2010

DOI: 10.1093/acprof:oso/9780199566419.001.0001

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(p.392) 13 Fragmentation
Quantum Chromodynamics




Oxford University Press

Fragmentation is the process by which the primary partons produced in a hard subprocess convert into the sprays of hadrons seen by experiments. This chapter describes experimental observations about the fragmentation process, such as multiplicities and momentum spectra of identified particles, and how soft gluon interference and colour coherence affects the particle flow in interjet regions. Special emphasis is given to two-particle correlations, i.e. quantum number correlations and Bose–Einstein correlations. Finally, colour reconnection in multi-parton environments is discussed.

Keywords:   fragmentation, particle multiplicities, momentum spectra, colour coherence, colour reconnection, quantum number correlations, Bose-Einstein correlations

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