کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1848023 1528125 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
|Vus| and ms from hadronic tau decays
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
|Vus| and ms from hadronic tau decays
چکیده انگلیسی

Recent progress in the determination of |Vus| employing strange hadronic τ-decay data are reported. This includes using the recent OPAL update of the strange spectral function, as well as augmenting the dimension-two perturbative contribution with the recently calculated order term on the theory side. These updates result in |Vus|=0.2220±0.0033, with the uncertainty presently being dominated by experiment, and already being competitive with the standard extraction from Ke3 decays and other new proposals to determine |Vus|. In vie of the ongoing work to analyse τ-decay data at the B-factories BaBar and Belle, as well as future results from BESIII, the error on |Vus| from τ decays is expected to be much reduced in the near future.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Proceedings Supplements - Volume 169, July 2007, Pages 85-89