Adıyaman Üniversitesi Kurumsal Arşivi

Search for a vectorlike quark with charge 2/3 in t plus Z events from pp collisions at root s 7 TeV

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dc.contributor.author CMS Collaboration
dc.date.accessioned 2022-06-14T10:14:47Z
dc.date.available 2022-06-14T10:14:47Z
dc.date.issued 2011
dc.identifier.issn 0031-9007
dc.identifier.uri http://dspace.adiyaman.edu.tr:8080/xmlui/handle/20.500.12414/3168
dc.description.abstract A search for pair-produced heavy vectorlike charge-2/3 quarks, T, in pp collisions at a center-of-mass energy of 7 TeV, is performed with the CMS detector at the LHC. Events consistent with the flavor-changing-neutral-current decay of a T quark to a top quark and a Z boson are selected by requiring two leptons from the Z-boson decay, as well as an additional isolated charged lepton. In a data sample corresponding to an integrated luminosity of 1.14 fb(-1), the number of observed events is found to be consistent with the standard model background prediction. Assuming a branching fraction of 100% for the decay T -> tZ, a T quark with a mass less than 475 GeV/c(2) is excluded at the 95% confidence level. tr
dc.language.iso en tr
dc.publisher Amer Physical Soc tr
dc.title Search for a vectorlike quark with charge 2/3 in t plus Z events from pp collisions at root s 7 TeV tr
dc.type Article tr
dc.identifier.issue 27 tr
dc.identifier.volume 107 tr
dc.source.title Physical Review Letters tr


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