Measurement of the ratio scrB(D+→π0l+ν)/ scrB(D+→K̄0l+ν)
Using the CLEO-II detector, the branching ratio of the Cabibbo suppressed decay D+→π0l+ν, relative to the branching ratio of the Cabibbo favored decay D+→K¯0l+ν, is measured to be B(D+→π0l+ν)/B(D+→K¯0l+ν) =(8.5±2.7±1.4)%. From this ratio, the product of the ratio of Cabibbo-Kobayashi-Maskawa (CKM) m...
محفوظ في:
| المؤلفون الرئيسيون: | , |
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| التنسيق: | text |
| اللغة: | English |
| منشور في: |
Institutional Knowledge at Singapore Management University
1993
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://ink.library.smu.edu.sg/sis_research/5800 |
| الوسوم: |
إضافة وسم
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| الملخص: | Using the CLEO-II detector, the branching ratio of the Cabibbo suppressed decay D+→π0l+ν, relative to the branching ratio of the Cabibbo favored decay D+→K¯0l+ν, is measured to be B(D+→π0l+ν)/B(D+→K¯0l+ν) =(8.5±2.7±1.4)%. From this ratio, the product of the ratio of Cabibbo-Kobayashi-Maskawa (CKM) matrix elements, ‖Vcd/Vcs∥2, and the form factors at q2=0, ‖fπ+(0)/fK+(0)∥2, is determined to be ‖Vcd/Vcs∥2‖fπ+(0)/fK+(0)∥2 =0.085±0.027±0.014. |
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