کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1842256 1031420 2013 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The inclusive decay b→cc¯s revisited
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
The inclusive decay b→cc¯s revisited
چکیده انگلیسی

The inclusive decay rate b→cc¯s is enhanced considerably due to perturbative QCD corrections. We recalculate the dominant part of the NLO–QCD corrections, because they cannot be reconstructed from the literature and we give the full expressions in this paper. Further we include some previously neglected corrections originating from penguin diagrams. Combined with the impressive progress in the accurate determination of input parameters like charm quark mass, bottom quark mass and CKM parameters, this enables us to make a very precise prediction of the corresponding branching ratio Br(b→cc¯s)=(23±2)%. This result is an essential ingredient for a model and even decay channel independent search for new physics effects in B decays.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 876, Issue 1, 1 November 2013, Pages 31–54
نویسندگان
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