کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1853216 1528924 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Is there still a B→πK puzzle?
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Is there still a B→πK puzzle?
چکیده انگلیسی
We perform a fit to the 2006 B→πK data and show that, when one includes (reasonable) theoretical input, there is a disagreement with the Standard Model. That is, the B→πK puzzle is still present. In fact, it has gotten worse than in earlier years. Assuming that one new-physics (NP) operator dominates, we show that a good fit is obtained only when one type of NP is added (this includes a modification of the electroweak penguin amplitude). The NP amplitude must be sizeable, with a large weak phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 653, Issues 2–4, 20 September 2007, Pages 249-253
نویسندگان
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