کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10136740 | 1645691 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Charm rescattering contribution in rare Bc+âK+KâÏ+ decay
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
Following the experimental results from LHCb on the rare decay Bc+âKâK+Ï+, we investigate the possibility where this process is dominated by a double charm rescattering. The Bc decay to double charm channels have a weak topology that is favored in comparison with the direct production of KâK+Ï+ in the final state, suppressed by quark annihilation. The decay amplitude for Bc+âKâK+Ï+ with Bc decaying first to double charm channels is described by charm hadronic triangle loops, which reach the final state of interest after DD¯âKK¯ or D+DsââÏ+Kâ transitions. We show that these processes give rise to non-resonant amplitudes with a clear signature in the Dalitz plot. In a near future, the new data from LHCb run II will be able to confirme if the main hypotheses of this work is correct and the dominant mechanism to produce K+K+Ïâ from the decay of Bc+ is through charm rescattering.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 785, 10 October 2018, Pages 581-584
Journal: Physics Letters B - Volume 785, 10 October 2018, Pages 581-584
نویسندگان
I. Bediaga, T. Frederico, P.C. Magalhães,