D - over(D, ̄) mixing constraints on FCNC with a non-universal Z′
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
651
Journal Issue
2-3
Pages
135-138
Date Issued
2007
Author(s)
Valencia, G.
Abstract
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. © 2007 Elsevier B.V. All rights reserved.
Type
journal article