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Short distance D-Dbar mixing

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arxiv 1208.6438 v2 pith:U6V6CV6U submitted 2012-08-31 hep-ph hep-lat

Markus Bobrowski , Alexander Lenz , Thomas Rauh This is my paper · ORCID
classification hep-phhep-lat
keywords mixingablecontributiond-dbardistanceordershortapproach
verification ladder T0 review T1 audit T2 compute T3 formal
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We review the status of Standard Model predictions for lifetimes and mixing rates of charmed mesons. It is shown that the short distance approach is able to reproduce tau(D^+)/tau(D^0) at leading order in the 1/m_c expansion. SU(3) violating effects from interactions with the soft hadronic background are identified as the dominant contribution to the D-Dbar mixing rate. We discuss the contribution from operators of dimension nine, which is able to enhance the neutral charm width splitting by a factor of order ten and comment on possible CP violation in mixing.

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Cited by 1 Pith paper

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  1. Nonperturbative Dynamics in D-meson Mixing

    hep-ph 2025-08 conditional novelty 6.0 of 10

    First calculation of dimension-11 and dimension-12 QCD condensate contributions to D-meson mixing gives xD = 1.27e-5, still below experiment.

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