b?j/?(?,k) decays within qcd factorization approach
نویسندگان
چکیده
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.
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B?J/?(?,K) Decays within QCD Factorization Approach
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عنوان ژورنال:
journal of sciences, islamic republic of iranناشر: university of tehran
ISSN 1016-1104
دوره 21
شماره 4 2010
کلمات کلیدی
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