Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s = 10.6 GeV
New measurements of Ds+ and Ds*+ meson production rates from B decays and from qq̄ continuum events near the Y(4S) resonance are presented. Using 20.8 fb-1 of data on the Y(4S) resonance and 2.6 fb-1 off-resonance, we find the inclusive branching fractions B(B→Ds+ X)=(10.93±0.19±0.58±2.73)% and B(B→...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2002
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| _version_ | 1797059133152690176 |
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| author | Aubert, B Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Palano, A Pompili, A Chen, G Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J Cahn, R Clark, A |
| author_facet | Aubert, B Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Palano, A Pompili, A Chen, G Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J Cahn, R Clark, A |
| author_sort | Aubert, B |
| collection | OXFORD |
| description | New measurements of Ds+ and Ds*+ meson production rates from B decays and from qq̄ continuum events near the Y(4S) resonance are presented. Using 20.8 fb-1 of data on the Y(4S) resonance and 2.6 fb-1 off-resonance, we find the inclusive branching fractions B(B→Ds+ X)=(10.93±0.19±0.58±2.73)% and B(B→Ds*+X)=(7.9±0.8±0.7 ±2.0)%, where the first error is statistical, the second is systematic, and the third is due to the Ds+→φπ+ branching fraction uncertainty. The production cross sections σ(e+e- →Ds+X) × B(Ds+→φπ+)=7.55±0.20 ±0.34 pb and σ(e+e-→Ds *±X) × B(Ds+→φπ+) = 5.8±0.7±0.5 pb are measured at center-of-mass energies about 40 MeV below the Y(4S) mass. The branching fractions ΣB(B→Ds(*)+ D̄(*))=(5.07±0.14±0.30±1.27)% and ∑B(B→Ds*+D̄(*)) =(4.1±0.2±0.4±1.0)% are determined from the Ds(*)+ momentum spectra. The mass difference m(Ds+)-m(D+)=98.4±0.1 ±0.3 MeV/c2 is also measured. |
| first_indexed | 2024-03-06T19:59:53Z |
| format | Journal article |
| id | oxford-uuid:26e84f23-217a-4255-be8d-fa73d6a99b89 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:59:53Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:26e84f23-217a-4255-be8d-fa73d6a99b892022-03-26T12:03:52ZMeasurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s = 10.6 GeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:26e84f23-217a-4255-be8d-fa73d6a99b89EnglishSymplectic Elements at Oxford2002Aubert, BBoutigny, DGaillard, JHicheur, AKaryotakis, YLees, JRobbe, PTisserand, VPalano, APompili, AChen, GChen, JQi, NRong, GWang, PZhu, YEigen, GStugu, BAbrams, GBorgland, ABreon, ABBrown, DButton-Shafer, JCahn, RClark, ANew measurements of Ds+ and Ds*+ meson production rates from B decays and from qq̄ continuum events near the Y(4S) resonance are presented. Using 20.8 fb-1 of data on the Y(4S) resonance and 2.6 fb-1 off-resonance, we find the inclusive branching fractions B(B→Ds+ X)=(10.93±0.19±0.58±2.73)% and B(B→Ds*+X)=(7.9±0.8±0.7 ±2.0)%, where the first error is statistical, the second is systematic, and the third is due to the Ds+→φπ+ branching fraction uncertainty. The production cross sections σ(e+e- →Ds+X) × B(Ds+→φπ+)=7.55±0.20 ±0.34 pb and σ(e+e-→Ds *±X) × B(Ds+→φπ+) = 5.8±0.7±0.5 pb are measured at center-of-mass energies about 40 MeV below the Y(4S) mass. The branching fractions ΣB(B→Ds(*)+ D̄(*))=(5.07±0.14±0.30±1.27)% and ∑B(B→Ds*+D̄(*)) =(4.1±0.2±0.4±1.0)% are determined from the Ds(*)+ momentum spectra. The mass difference m(Ds+)-m(D+)=98.4±0.1 ±0.3 MeV/c2 is also measured. |
| spellingShingle | Aubert, B Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Palano, A Pompili, A Chen, G Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J Cahn, R Clark, A Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s = 10.6 GeV |
| title | Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s = 10.6 GeV |
| title_full | Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s = 10.6 GeV |
| title_fullStr | Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s = 10.6 GeV |
| title_full_unstemmed | Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s = 10.6 GeV |
| title_short | Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s = 10.6 GeV |
| title_sort | measurement of ds and ds production in b meson decays and from continuum e e annihilation at √s 10 6 gev |
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