Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV

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Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV

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1-s2.0-S0370269312012981-main.pdf

Description

Published version

Size

549.57 KB

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Adobe PDF

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sword-2019-05-03T14:30:49.original.xml (130 B)

Original SWORD entry document

Date Issued

January 2013

Journal

Physics Letters B

Publisher

Elsevier BV

Version

Final published version

Abstract

The results of a search for flavor changing neutral currents in top quark decays t→Zq in events with a topology compatible with the decay chain tt̄→Wb+Zq→ℓνb+ℓℓq are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0 fb-1 of proton-proton collisions at a center-of-mass energy of 7 TeV, collected with the CMS detector at the LHC. The observed number of events agrees with the standard model prediction and no evidence for flavor changing neutral currents in top quark decays is found. A t→Zq branching fraction greater than 0.21% is excluded at the 95% confidence level. © 2012 CERN.

Terms of Use

Creative Commons Attribution 3.0 unported license

https://creativecommons.org/licenses/by/3.0/

Persistent DSpace Link

https://hdl.handle.net/1721.1/133578

DOI of Published Version

10.1016/j.physletb.2012.12.045