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B?J/?(?,K) Decays within QCD Factorization Approach | ||
| Journal of Sciences, Islamic Republic of Iran | ||
| مقاله 6، دوره 21، شماره 4، اسفند 2010 اصل مقاله (289.75 K) | ||
| نویسنده | ||
| H. Mehraban | ||
| 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. | ||
| کلیدواژه‌ها | ||
| 2 and 3-twist؛ B meson؛ Hard scattering؛ QCD factorization | ||
| عنوان مقاله [English] | ||
| B?J/?(?,K) Decays within QCD Factorization Approach | ||
| نویسندگان [English] | ||
| H. Mehraban | ||
| چکیده [English] | ||
| 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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آمار تعداد مشاهده مقاله: 1,663 تعداد دریافت فایل اصل مقاله: 1,703 |
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