Authors
Opal Collaboration
Publication date
1996/12
Journal
Zeitschrift für Physik C Particles and Fields
Volume
69
Pages
543-560
Publisher
Springer-Verlag
Description
Symmetric three-jet events are selected from hadronic Z0 decays such that the two lower energy jets are each produced at an angle of about 150° with respect to the highest energy jet. In some cases, a displaced secondary vertex is reconstructed in one of the two lower energy jets, which permits the other lower energy jet to be identified as a gluon jet through anti-tagging. In other cases, the highest energy jet is tagged as a b jet or as a light quark (uds) jet using secondary vertex or track impact parameter and momentum information. Comparing the two lower energy jets of the events with a tag in the highest energy jet to the anti-tagged gluon jets yields a direct comparison of b, uds and gluon jets, which are produced with the same energy of about 24 GeV and under the same conditions. We observe b jets and gluon jets to have similar properties as measured by the angular distribution of particle energy …
Total citations
Scholar articles
Opal Collaboration - Zeitschrift für Physik C Particles and Fields, 1996
G Alexander - 1996
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