B?J/?(?,K) Decays within QCD Factorization Approach
نویسنده
چکیده مقاله:
We used QCD factorization for the hadronic matrix elements to show that the existing data, in particular the branching ratios BR ( ?J/?K) and BR ( ?J/??), can be accounted for this approach. We analyzed the decay within the framework of QCD factorization. We have complete calculation of the relevant hard-scattering kernels for twist-2 and twist-3. We calculated this decays in a special scale ( ) and in two schemes for Wilson coefficients in NLO. We considered three functions for . The twist-3 contribution involves logarithmically divergent integral and also we considered canceling divergent. The obtained results are in agreement with available experimental data.
منابع مشابه
b?j/?(?,k) decays within qcd factorization approach
we used qcd factorization for the hadronic matrix elements to show that the existing data, in particular the branching ratios br ( ?j/?k) and br ( ?j/??), can be accounted for this approach. we analyzed the decay within the framework of qcd factorization. we have complete calculation of the relevant hard-scattering kernels for twist-2 and twist-3. we calculated this decays in a special scale ( ...
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عنوان ژورنال
دوره 21 شماره 4
صفحات -
تاریخ انتشار 2010-12-01
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