Quark jet rates and quark-gluon discrimination in multijet final states

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We estimate the number of quark jets in QCD multijet final states at hadron colliders. In the estimation, we develop the calculation of jet rates into that of quark jet rates. From the calculation, we estimate the improvement on the signal-to-background ratio for a signal semianalytically by applying quark-gluon discrimination, where the signal predicts many quark jets. We introduce a variable related to jet flavors in multijet final states and propose a data-driven method using the variable. As with the semianalytical result, the improvements in the signal-to-background ratio using the variable in Monte Carlo analysis are estimated.
Publisher
AMER PHYSICAL SOC
Issue Date
2019-06
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW D, v.99, no.11

ISSN
2470-0010
DOI
10.1103/PhysRevD.99.114012
URI
http://hdl.handle.net/10203/263232
Appears in Collection
RIMS Journal Papers
Files in This Item
000471985400005.pdf(1.21 MB)Download
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