Measurement of Ds+ meson production in Z decays and of the Bs0 lifetime
The lifetime of the Bs0 meson is measured in approximately 3 million hadronic Z decays accumulated using the ALEPH detector at LEP from 1991 to 1994. Seven different Ds− decay modes were reconstructed and combined with an opposite sign lepton as evidence of semileptonic Bs0 decays. Two hundred and e...
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1995
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sg-smu-ink.sis_research-67442021-02-17T09:30:05Z Measurement of Ds+ meson production in Z decays and of the Bs0 lifetime BUSKULIC, D. THULASIDAS, Manoj The lifetime of the Bs0 meson is measured in approximately 3 million hadronic Z decays accumulated using the ALEPH detector at LEP from 1991 to 1994. Seven different Ds− decay modes were reconstructed and combined with an opposite sign lepton as evidence of semileptonic Bs0 decays. Two hundred and eight Ds−ℓ+ candidates satisfy selection criteria designed to ensure precise proper time reconstruction and yield a measured Bs0 lifetime of τ(Bs0) = 1.59−0.15+0.17 (stat) ±0.03 (syst) ps. Using a larger, less constrained sample of events, the product branching ratio is measured to be Br(b→Bs0) ·Br(Bs0→Ds−ℓ+νX) = 0.82 ± 0.09 (stat) −0.14+0.13 (syst) %. 1995-01-01T08:00:00Z text https://ink.library.smu.edu.sg/sis_research/5741 info:doi/10.1007/BF02907442 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 |
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Databases and Information Systems Programming Languages and Compilers BUSKULIC, D. THULASIDAS, Manoj Measurement of Ds+ meson production in Z decays and of the Bs0 lifetime |
| description |
The lifetime of the Bs0 meson is measured in approximately 3 million hadronic Z decays accumulated using the ALEPH detector at LEP from 1991 to 1994. Seven different Ds− decay modes were reconstructed and combined with an opposite sign lepton as evidence of semileptonic Bs0 decays. Two hundred and eight Ds−ℓ+ candidates satisfy selection criteria designed to ensure precise proper time reconstruction and yield a measured Bs0 lifetime of τ(Bs0) = 1.59−0.15+0.17 (stat) ±0.03 (syst) ps. Using a larger, less constrained sample of events, the product branching ratio is measured to be Br(b→Bs0) ·Br(Bs0→Ds−ℓ+νX) = 0.82 ± 0.09 (stat) −0.14+0.13 (syst) %. |
| format |
text |
| author |
BUSKULIC, D. THULASIDAS, Manoj |
| author_facet |
BUSKULIC, D. THULASIDAS, Manoj |
| author_sort |
BUSKULIC, D. |
| title |
Measurement of Ds+ meson production in Z decays and of the Bs0 lifetime |
| title_short |
Measurement of Ds+ meson production in Z decays and of the Bs0 lifetime |
| title_full |
Measurement of Ds+ meson production in Z decays and of the Bs0 lifetime |
| title_fullStr |
Measurement of Ds+ meson production in Z decays and of the Bs0 lifetime |
| title_full_unstemmed |
Measurement of Ds+ meson production in Z decays and of the Bs0 lifetime |
| title_sort |
measurement of ds+ meson production in z decays and of the bs0 lifetime |
| publisher |
Institutional Knowledge at Singapore Management University |
| publishDate |
1995 |
| url |
https://ink.library.smu.edu.sg/sis_research/5741 |
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1770575569231020032 |