کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9861310 | 1528993 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectra of prompt electrons from decays of B+ and B0 mesons and ratio of inclusive semielectronic branching fractions
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spectra of prompt electrons from decays of B+ and B0 mesons and ratio of inclusive semielectronic branching fractions Spectra of prompt electrons from decays of B+ and B0 mesons and ratio of inclusive semielectronic branching fractions](/preview/png/9861310.png)
چکیده انگلیسی
We present spectra of prompt electrons from decays of neutral and charged B mesons. The results are based on 140 fbâ1 of data collected by the Belle detector on the Ï(4S) resonance at the KEKB e+eâ asymmetric collider. We tag Ï(4S)âBB¯ events by reconstructing a B meson in one of several hadronic decay modes; the semileptonic decay of the other B meson is inferred from the presence of an identified electron. We obtain for charged and neutral B mesons the partial rates of semileptonic decay, to electrons with momentum greater than 0.6GeV/c in the B rest frame, and their ratio b+/b0=1.08±0.05±0.02, where the first and second errors are statistical and systematic, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 614, Issues 1â2, 12 May 2005, Pages 27-36
Journal: Physics Letters B - Volume 614, Issues 1â2, 12 May 2005, Pages 27-36
نویسندگان
Belle Collaboration Belle Collaboration, T. Okabe, K. Abe, K. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aushev, A.M. Bakich, Y. Ban, S. Banerjee, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, D. Žontar,