High Energy Physics - Phenomenology
[Submitted on 4 Jul 2018
(v1)
, last revised 6 May 2019 (this version, v3)]
Title: Quark jet rates and quark/gluon discrimination in multi-jet final states
Title: 夸克喷注率和多喷注末态中的夸克/胶子区分
Abstract: We estimate the number of quark jets in QCD multi-jet 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 semi-analytically by applying quark/gluon discrimination, where the signal predicts many quark jets. We introduce a variable related to jet flavors in multi-jet final states and propose a data-driven method using the variable to reduce systematic uncertainties of analysis results. As the same with the semi-analytical result, the improvements on the signal-to-background ratio using the variable in Monte-Carlo analysis are estimated.
Submission history
From: Yasuhito Sakaki [view email][v1] Wed, 4 Jul 2018 01:34:32 UTC (1,586 KB)
[v2] Thu, 2 Aug 2018 01:14:45 UTC (1,592 KB)
[v3] Mon, 6 May 2019 23:05:07 UTC (1,596 KB)
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