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Leptoquarks in FCNC charm decays

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arxiv 0810.4858 v1 pith:3YX3XOUY submitted 2008-10-27 hep-ph

Leptoquarks in FCNC charm decays

classification hep-ph
keywords leptoquarkscharmdecaydecaysexperimentalmightresultsbranching
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Recently it was noticed that among many scenarios of new physics leptoquarks might compensate for the disagreement between the lattice and experimental results for the charmed strange meson decay constant. The leptoquarks might modify also the flavor changing neutral current charm decays. In this study we investigate impact of the scalar leptoquark with electric charge -1/3 on the dilepton invariant mass distribution in the D^+ --> pi^+ mu^+ mu^- decay and on the branching ratios of the D^0 --> mu^+ mu^- using the existing experimental results.

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