Quark and gluon jet properties in symmetric three jet events

, ALEPH Collaboration (1996) Quark and gluon jet properties in symmetric three jet events. Physics Letters B, 384 (1-4). pp. 353-364. ISSN 0370-2693

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Abstract

Quark and gluon jets with the same energy, 24 GeV, are compared in symmetric three-jet configurations from hadronic Z decays observed by the ALEPH detector. Jets are defined using the Durham algorithm. Gluon jets are identified using an anti-tag on b jets, based on a track impact parameter method. The comparison of gluon and mixed flavour quark jets shows that gluon jets have a softer fragmentation function, a larger angular width and a higher particle multiplicity, Evidence is presented which shows that the corresponding differences between gluon and b jets are significantly smaller. In a statistically limited comparison the multiplicity in c jets was found to be comparable with that observed for the jets of mixed quark flavour.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
64057
Deposited By:
Deposited On:
14 May 2013 13:51
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Nov 2021 06:54