B meson decays to η(′) K*, η (′) ρ, η(′) π0, ωπ0, and φπ0
We present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body B decays to η(′) K*, η(′) ρ, η(′) π0, ωπ0, and φπ0. The data were recorded with the BABAR detector at PEP-II and correspond to 89×106 BB pairs produced in e +e- annihilation through the Υ (4S) r...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2004
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| _version_ | 1797084958730223616 |
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| author | Aubert, B Barate, R Boutigny, D Couderc, F Gaillard, J Hicheur, A Karyotakis, Y Lees, J Tisserand, V Zghiche, A Palano, A Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J |
| author_facet | Aubert, B Barate, R Boutigny, D Couderc, F Gaillard, J Hicheur, A Karyotakis, Y Lees, J Tisserand, V Zghiche, A Palano, A Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J |
| author_sort | Aubert, B |
| collection | OXFORD |
| description | We present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body B decays to η(′) K*, η(′) ρ, η(′) π0, ωπ0, and φπ0. The data were recorded with the BABAR detector at PEP-II and correspond to 89×106 BB pairs produced in e +e- annihilation through the Υ (4S) resonance. We find significant signals for two decay modes and measure the branching fractions B(B+→ηK*+)=(25.6 ±4.0±2.4) ×10-6 and B(B0→ηK*0) = (18.6±23±1.2)×10-6, where the first error is statistical and the second systematic. We also find evidence with significance 3,5σ for a third decay mode and measure B(B+ →ηρ+)=(9.2±3.4±1.0)×10 -6. For other channels, we set 90% C.L. upper limits of B(B 0→ηρ0)<1.5 ×10-6, B(B+→η′K*+)<14×10 -6, B(B0→η′K*0)<7. 6×10-6, B(B0→η′K*0) <22×10-6, B(B0 →η′ρ 0)<4.3×10-6, B(B0→ηπ 0)<2.5×10-6, B(B0→η′ π0)<3.7×10-6, B(B0→ωπ 0)<1.2×10-6, and B(B0→φπ 0)<1.0×10-6. For self-flavor-tagging modes with significant signals, the time-integrated charge asymmetries are A ch(ηK*+)=+0.13±0.14±0.02 and Ach(ηK*0)=+0.02±0.11±0.02. |
| first_indexed | 2024-03-07T02:02:24Z |
| format | Journal article |
| id | oxford-uuid:9dcc4190-96cd-4ee2-941e-7f767da5507e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:02:24Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:9dcc4190-96cd-4ee2-941e-7f767da5507e2022-03-27T00:45:45ZB meson decays to η(′) K*, η (′) ρ, η(′) π0, ωπ0, and φπ0Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9dcc4190-96cd-4ee2-941e-7f767da5507eEnglishSymplectic Elements at Oxford2004Aubert, BBarate, RBoutigny, DCouderc, FGaillard, JHicheur, AKaryotakis, YLees, JTisserand, VZghiche, APalano, APompili, AChen, JQi, NRong, GWang, PZhu, YEigen, GOfte, IStugu, BAbrams, GBorgland, ABreon, ABBrown, DButton-Shafer, JWe present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body B decays to η(′) K*, η(′) ρ, η(′) π0, ωπ0, and φπ0. The data were recorded with the BABAR detector at PEP-II and correspond to 89×106 BB pairs produced in e +e- annihilation through the Υ (4S) resonance. We find significant signals for two decay modes and measure the branching fractions B(B+→ηK*+)=(25.6 ±4.0±2.4) ×10-6 and B(B0→ηK*0) = (18.6±23±1.2)×10-6, where the first error is statistical and the second systematic. We also find evidence with significance 3,5σ for a third decay mode and measure B(B+ →ηρ+)=(9.2±3.4±1.0)×10 -6. For other channels, we set 90% C.L. upper limits of B(B 0→ηρ0)<1.5 ×10-6, B(B+→η′K*+)<14×10 -6, B(B0→η′K*0)<7. 6×10-6, B(B0→η′K*0) <22×10-6, B(B0 →η′ρ 0)<4.3×10-6, B(B0→ηπ 0)<2.5×10-6, B(B0→η′ π0)<3.7×10-6, B(B0→ωπ 0)<1.2×10-6, and B(B0→φπ 0)<1.0×10-6. For self-flavor-tagging modes with significant signals, the time-integrated charge asymmetries are A ch(ηK*+)=+0.13±0.14±0.02 and Ach(ηK*0)=+0.02±0.11±0.02. |
| spellingShingle | Aubert, B Barate, R Boutigny, D Couderc, F Gaillard, J Hicheur, A Karyotakis, Y Lees, J Tisserand, V Zghiche, A Palano, A Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J B meson decays to η(′) K*, η (′) ρ, η(′) π0, ωπ0, and φπ0 |
| title | B meson decays to η(′) K*, η (′) ρ, η(′) π0, ωπ0, and φπ0 |
| title_full | B meson decays to η(′) K*, η (′) ρ, η(′) π0, ωπ0, and φπ0 |
| title_fullStr | B meson decays to η(′) K*, η (′) ρ, η(′) π0, ωπ0, and φπ0 |
| title_full_unstemmed | B meson decays to η(′) K*, η (′) ρ, η(′) π0, ωπ0, and φπ0 |
| title_short | B meson decays to η(′) K*, η (′) ρ, η(′) π0, ωπ0, and φπ0 |
| title_sort | b meson decays to η k η ρ η π0 ωπ0 and φπ0 |
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