D - over(D, ̄) mixing constraints on FCNC with a non-universal Z′

Xiao Gang He, G. Valencia

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24 Citations (Scopus)


The BaBar and Belle Collaborations have recently reported evidence for D0 - over(D, ̄)0 mixing. This measurement provides the first significant constraint on FCNC in the up-quark sector for non-universal Z models. Attributing the observed D - over(D, ̄) mixing to new physics, we comment on the resulting rare D and t decays. We also show that a CP violating semileptonic asymmetry as large as ∼30% is allowed by the experimental results.

Original languageEnglish
Pages (from-to)135-138
Number of pages4
JournalPhysics Letters B
Issue number2-3
Publication statusPublished - 26 Jul 2007
Externally publishedYes

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