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Search for flavor changing neutral currents in decays of top quarks

Research output: Contribution to journalJournal article

Published

Journal publication date11/07/2011
JournalPhysics Letters B
Journal number3
Volume701
Number of pages8
Pages313-320
Original languageEnglish

Abstract

We present a search for flavor changing neutral currents in decays of top quarks. The analysis is based on a search for ttbar -> l'null + jets (l, l' = e, mu) final states using 4.1 fb^-1 of integrated luminosity of ppbar collisions at sqrt(s) = 1.96 TeV. We extract limits on the branching ratio B(t -> Zq) (q = u, c quarks), assuming anomalous tuZ or tcZ couplings. We do not observe any sign of such anomalous coupling and set a limit of B

Bibliographic note

10 pages, 5 figures, Submitted to Physics Letters B. Paper updated Sept. 7, 2011 to include PLB referee's comments and suggestions