Charm Leptonic and Semileptonic Decays
نویسنده
چکیده
The study of charmed meson decays are important for improving our knowledge of the Standard Model (SM). In particular, the study of leptonic and semileptonic decays allow us to measure the CKM matrix elements Vcs and Vcd to a high level of precision. Leptonic and semileptonic decays are also used to test theoretical predictions describing the strong interaction (QCD) in heavy quark systems. Charmed meson decays are a good laboratory to test Lattice QCD (LQCD) predictions, which can then be applied with confidence to bottom meson decays. Improved theoretical predictions will not only lower the uncertainty in the CKM matrix elements mentioned above but also Vcb and Vub.
منابع مشابه
Theory of Semileptonic Charm Decays
Over the recent years, the studies of semileptonic charm decays have steadily been (re)gaining importance. Within the standard model (SM) the CKM matrix element moduli |Vcs| and |Vcd| are currently best constrained indirectly, through CKM unitarity, and not by direct measurement. Recently however, deviations from unitarity predictions have been reported in leptonic decays of the Ds meson. Since...
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