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QCD sum rules analysis of the rare B_c rar Xνbar{ν} decays

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arxiv 0805.2806 v1 pith:DKL2O6KA submitted 2008-05-19 hep-ph

QCD sum rules analysis of the rare B_c rar Xνbar{ν} decays

classification hep-ph
keywords decaysfactorsformrarerulesvectoraccountanalysis
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Taking into account the gluon correction contributions to the correlation function, the form factors relevant to the rare $B_c \rar X \nu\bar{\nu}$ decays are calculated in the framework of the three point QCD sum rules, where $X$ stands for axial vector particle, $AV(D_{s1})$, and vector particles, $V(D^*,D^*_s)$. The total decay width as well as the branching ratio of these decays are evaluated using the $q^2$ dependent expressions of the form factors. A comparison of our results with the predictions of the relativistic constituent quark model is presented.

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