A measurement of |Vcb| from B0 → D*+ ℓ- νℓ
From approximately 3 million hadronic decays of Z bosons recorded with the aleph detector at lep, a sample of 410 ± 32 B0→ D∗+ℓ−νℓ candidates is selected, where ℓ is either an electron or a muon. The differential decay rate dΓ (B0→ D∗+ℓ−νℓ)dω from this sample is fitted, yielding a value for the prod...
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1995
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sg-smu-ink.sis_research-67432021-02-17T09:30:05Z A measurement of |Vcb| from B0 → D*+ ℓ- νℓ BUSKULIC, D. THULASIDAS, Manoj From approximately 3 million hadronic decays of Z bosons recorded with the aleph detector at lep, a sample of 410 ± 32 B0→ D∗+ℓ−νℓ candidates is selected, where ℓ is either an electron or a muon. The differential decay rate dΓ (B0→ D∗+ℓ−νℓ)dω from this sample is fitted, yielding a value for the product of the CKM matrix element |Vcb| and the normalisation of the decay form factor at the point of zero recoil of the D∗+ meson F(ω = 1)|Vcb| = (31.4 ± 2.3stat ± 2.5syst) × 10−3. A value for |Vcb| is extracted using theoretical calculations of the form factor normalisation, with the result |Vcb| = (34.5 ± 2.5stat ± 2.7syst ± 1.5theory) × 10−3. From the integrated s the measured branching fraction is Br(B0→ D∗+ℓ−νℓ) = (5.18 ± 0.30stat± 0.62syst)% 1995-10-05T07:00:00Z text https://ink.library.smu.edu.sg/sis_research/5740 info:doi/10.1016/0370-2693(95)01021-H Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Databases and Information Systems Programming Languages and Compilers |
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Databases and Information Systems Programming Languages and Compilers BUSKULIC, D. THULASIDAS, Manoj A measurement of |Vcb| from B0 → D*+ ℓ- νℓ |
| description |
From approximately 3 million hadronic decays of Z bosons recorded with the aleph detector at lep, a sample of 410 ± 32 B0→ D∗+ℓ−νℓ candidates is selected, where ℓ is either an electron or a muon. The differential decay rate dΓ (B0→ D∗+ℓ−νℓ)dω from this sample is fitted, yielding a value for the product of the CKM matrix element |Vcb| and the normalisation of the decay form factor at the point of zero recoil of the D∗+ meson F(ω = 1)|Vcb| = (31.4 ± 2.3stat ± 2.5syst) × 10−3. A value for |Vcb| is extracted using theoretical calculations of the form factor normalisation, with the result |Vcb| = (34.5 ± 2.5stat ± 2.7syst ± 1.5theory) × 10−3. From the integrated s the measured branching fraction is Br(B0→ D∗+ℓ−νℓ) = (5.18 ± 0.30stat± 0.62syst)% |
| format |
text |
| author |
BUSKULIC, D. THULASIDAS, Manoj |
| author_facet |
BUSKULIC, D. THULASIDAS, Manoj |
| author_sort |
BUSKULIC, D. |
| title |
A measurement of |Vcb| from B0 → D*+ ℓ- νℓ |
| title_short |
A measurement of |Vcb| from B0 → D*+ ℓ- νℓ |
| title_full |
A measurement of |Vcb| from B0 → D*+ ℓ- νℓ |
| title_fullStr |
A measurement of |Vcb| from B0 → D*+ ℓ- νℓ |
| title_full_unstemmed |
A measurement of |Vcb| from B0 → D*+ ℓ- νℓ |
| title_sort |
measurement of |vcb| from b0 → d*+ ℓ- νℓ |
| publisher |
Institutional Knowledge at Singapore Management University |
| publishDate |
1995 |
| url |
https://ink.library.smu.edu.sg/sis_research/5740 |
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1770575569058004992 |