Relating D0-anti-D0 Mixing and D0 -> l+l- with New Physics

Abstract

We point out how, in certain models, the same combination of New Physics couplings occur in the amplitudes for both D0-anti-D0 mixing and the rare decays D0 -> l+l-. If the New Physics dominates and is responsible for the observed mixing, then a very simple correlation exists between the magnitudes of each; in fact the rates for the decay D0 -> l+l- are completely fixed by the mixing. Observation of D0 -> l+l- in excess of the Standard Model prediction could identify New Physics contributions to D0-anti-D0 mixing.

25 pages, 3 figures; typos corrected and references added

References in corpus (6)

• Implications of D^0-\bar D^0 Mixing for New Physics
• Charm Meson Decays
• New Physics contributions to the lifetime difference in D0-anti-D0 mixing
• Updated constraints on new physics in rare charm decays
• Lifetime difference in D^0 - \bar{D^0} mixing within R-parity-violating SUSY
• On the Non-Manifest Left-Right Model Contribution to the Lifetime Difference in $D^0-{\bar{D}}^0$ Mixing

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• D^0 -> gamma gamma and D^0 -> mu^+ mu^- Rates on an Unlikely Impact of the Littlest Higgs Model with T-Parity
• Covariant Description of Flavor Conversion in the LHC Era
• TASI 2009 Lectures - Flavor Physics
• Updated Search for the Flavor-Changing Neutral-Current Decay D^0 \to μ + μ-
• No Pain, No Gain -- On the Challenges and Promises of Charm Studies