کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10722226 | 1033723 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Non-factorization contributions in DâÏK,KK decay
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We have analyzed the DâÏK,KK decay with the naive factorization (NF), QCD factorization (QCDF) and QCD factorization including soft-gluon exchanges (QCDF+SGE). In these decay channels, the soft-gluon effects are firstly calculated with light cone QCD sum rules. Comparing the three kind approaches, we can find the calculation results have made much more improved QCD factorization (QCDF) than the naive factorization (NF), and the calculation results have also made improved QCD factorization including soft-gluon exchanges (QCDF+SGE) than the QCD factorization (QCDF) in the color-suppressed decay channels. In addition, we find the soft-gluon effects are larger than the leading order contributions, and the calculation results are close to the experimental data for the color-suppressed decay channels. In color-allowed decay channel D0âÏ+Kâ, the soft-gluon effects are small and we should consider other power terms, such as final state interaction and annihilation effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 675, Issue 2, 11 May 2009, Pages 196-202
Journal: Physics Letters B - Volume 675, Issue 2, 11 May 2009, Pages 196-202
نویسندگان
Xiang-Yao Wu, Bai-Jun Zhang, Hai-Bo Li, Xiao-Jing Liu, Bing Liu, Jing-Wu Li, Yi-Qing Guo,