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

Xiao Gang He; G. Valencia

doi:10.1016/j.physletb.2007.06.007

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

Xiao Gang He, G. Valencia

Research output: Contribution to journal › Article › Research › peer-review

24 Citations (Scopus)

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.

Original language	English
Pages (from-to)	135-138
Number of pages	4
Journal	Physics Letters B
Volume	651
Issue number	2-3
DOIs	https://doi.org/10.1016/j.physletb.2007.06.007
Publication status	Published - 26 Jul 2007
Externally published	Yes

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10.1016/j.physletb.2007.06.007

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Cite this

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title = "D - over(D,{\= }) mixing constraints on FCNC with a non-universal Z′",

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.",

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year = "2007",

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N2 - 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.

AB - 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.

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