Measurement of the top-quark mass in t(t)over-bar events with dilepton final states in pp collisions at root s=7 TeV

dc.contributor.author	CMS Collaboration
dc.date.accessioned	2022-06-13T06:04:33Z
dc.date.available	2022-06-13T06:04:33Z
dc.date.issued	2012
dc.identifier.issn	1434-6044
dc.identifier.uri	http://dspace.adiyaman.edu.tr:8080/xmlui/handle/20.500.12414/3146
dc.description.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.	tr
dc.language.iso	en	tr
dc.publisher	Springer	tr
dc.title	Measurement of the top-quark mass in t(t)over-bar events with dilepton final states in pp collisions at root s=7 TeV	tr
dc.type	Article	tr
dc.identifier.issue	10	tr
dc.identifier.volume	72	tr
dc.source.title	European Physical Journal C	tr