Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/10711
Title: Measurement of the top-quark mass in t(t)over-bar events with dilepton final states in pp collisions at ?s=7 TeV
Authors: Karapınar, Güler
CMS Collaboration
Issue Date: 2012
Publisher: Springer Verlag
Abstract: The top-quark mass is measured in proton-proton collisions at root s = 7 TeV using a data sample corresponding to an integrated luminosity of 5.0 fb(-1) collected by the CMS experiment at the LHC. The measurement is performed in the dilepton decay channel t (t) over bar -> (l(+)nu(l)b) (l-(nu) over bar (l)(b) over bar), where l = e, mu. Candidate top-quark decays are selected by requiring two leptons, at least two jets, and imbalance in transverse momentum. The mass is reconstructed with an analytical matrix weighting technique using distributions derived from simulated samples. Using a maximum-likelihood fit, the top-quark mass is determined to be 172.5 +/- 0.4 (stat.) +/- 1.5 (syst.) GeV.
URI: https://doi.org/10.1140/epjc/s10052-012-2202-z
https://hdl.handle.net/11147/10711
ISSN: 1434-6044
1434-6052
Appears in Collections:Rectorate / Rektörlük
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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