Measurement of the B̄ → Dlv̄ Partial width and form factor parameters
We have studied the decay B̄ → Dlv̄, where l = e or μ. From a fit to the differential decay rate dΓ/dw we measure the rate normalization FD(1)|Vcb| and form factor slope ρ̂D2, and, using measured values of τB, find Γ(B̄ → Dlv̄) = (12.0 ± 0.9 ± 2.1) ns-1. The resulting branching fractions are B(B̄0 →...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1997
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| _version_ | 1826306112077430784 |
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| author | Athanas, M Avery, P Jones, C Lohner, M Prescott, C Yelton, J Zheng, J Brandenburg, G Briere, R Ershov, A Gao, Y Kim, D Wilson, R Yamamoto, H Browder, T Li, F Li, Y Rodriguez, J Bergfeld, T Eisenstein, B Ernst, J Gladding, G Gollin, G Hans, R Johnson, E |
| author_facet | Athanas, M Avery, P Jones, C Lohner, M Prescott, C Yelton, J Zheng, J Brandenburg, G Briere, R Ershov, A Gao, Y Kim, D Wilson, R Yamamoto, H Browder, T Li, F Li, Y Rodriguez, J Bergfeld, T Eisenstein, B Ernst, J Gladding, G Gollin, G Hans, R Johnson, E |
| author_sort | Athanas, M |
| collection | OXFORD |
| description | We have studied the decay B̄ → Dlv̄, where l = e or μ. From a fit to the differential decay rate dΓ/dw we measure the rate normalization FD(1)|Vcb| and form factor slope ρ̂D2, and, using measured values of τB, find Γ(B̄ → Dlv̄) = (12.0 ± 0.9 ± 2.1) ns-1. The resulting branching fractions are B(B̄0 → D+l-v̄) = (1.87 ± 0.15 ± 0.32)% and B(B- → D0l v̄) = (1.94 ± 0.15 ± 0.34)%. The form factor parameters are in agreement with those measured in B̄ → D*lv̄ decays, as predicted by heavy quark effective theory. |
| first_indexed | 2024-03-07T06:43:00Z |
| format | Journal article |
| id | oxford-uuid:f9edebe7-1c1e-4636-a620-aaee0bda4a1b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:43:00Z |
| publishDate | 1997 |
| record_format | dspace |
| spelling | oxford-uuid:f9edebe7-1c1e-4636-a620-aaee0bda4a1b2022-03-27T13:01:55ZMeasurement of the B̄ → Dlv̄ Partial width and form factor parametersJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f9edebe7-1c1e-4636-a620-aaee0bda4a1bEnglishSymplectic Elements at Oxford1997Athanas, MAvery, PJones, CLohner, MPrescott, CYelton, JZheng, JBrandenburg, GBriere, RErshov, AGao, YKim, DWilson, RYamamoto, HBrowder, TLi, FLi, YRodriguez, JBergfeld, TEisenstein, BErnst, JGladding, GGollin, GHans, RJohnson, EWe have studied the decay B̄ → Dlv̄, where l = e or μ. From a fit to the differential decay rate dΓ/dw we measure the rate normalization FD(1)|Vcb| and form factor slope ρ̂D2, and, using measured values of τB, find Γ(B̄ → Dlv̄) = (12.0 ± 0.9 ± 2.1) ns-1. The resulting branching fractions are B(B̄0 → D+l-v̄) = (1.87 ± 0.15 ± 0.32)% and B(B- → D0l v̄) = (1.94 ± 0.15 ± 0.34)%. The form factor parameters are in agreement with those measured in B̄ → D*lv̄ decays, as predicted by heavy quark effective theory. |
| spellingShingle | Athanas, M Avery, P Jones, C Lohner, M Prescott, C Yelton, J Zheng, J Brandenburg, G Briere, R Ershov, A Gao, Y Kim, D Wilson, R Yamamoto, H Browder, T Li, F Li, Y Rodriguez, J Bergfeld, T Eisenstein, B Ernst, J Gladding, G Gollin, G Hans, R Johnson, E Measurement of the B̄ → Dlv̄ Partial width and form factor parameters |
| title | Measurement of the B̄ → Dlv̄ Partial width and form factor parameters |
| title_full | Measurement of the B̄ → Dlv̄ Partial width and form factor parameters |
| title_fullStr | Measurement of the B̄ → Dlv̄ Partial width and form factor parameters |
| title_full_unstemmed | Measurement of the B̄ → Dlv̄ Partial width and form factor parameters |
| title_short | Measurement of the B̄ → Dlv̄ Partial width and form factor parameters |
| title_sort | measurement of the b dlv partial width and form factor parameters |
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