Measurement of the top-quark mass in all-jets t(t)over-bar events in pp collisions at root s=7 TeV
Type :
Article
Publication Status :
published
Access :
restrictedAccess
Abstract
The mass of the top quark is measured using a sample of tt¯tt¯ candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at s√=7s=7 TeV in 2011 and corresponds to an integrated luminosity of 3.54 fb−1fb−1 . The mass is reconstructed for each event employing a kinematic fit of the jets to a tt¯tt¯ hypothesis. The top-quark mass is measured to be 173.49±0.69(stat.)±1.21(syst.)173.49±0.69(stat.)±1.21(syst.) GeV. A combination with previously published measurements in other decay modes by CMS yields a mass of 173.54±0.33(stat.)±0.96(syst.)173.54±0.33(stat.)±0.96(syst.) GeV.
Source :
European Physical Journal C
Date :
2014-04
Volume :
74
Issue :
4
Publisher :
Springer Nature
URI
http://hdl.handle.net/10679/4388http://link.springer.com/article/10.1140/epjc/s10052-014-2758-x
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