Study of the decay B̄0→D*+ωπ-
We report on a study of the decay B̄0→D*+ωπ- with the BABAR detector at the PEP-II B-factory at the Stanford Linear Accelerator Center. Based on a sample of 232×106 BB̄ decays, we measure the branching fraction B(B̄0→D*+ωπ-)=(2.88±0. 21(stat.)±0.31(syst.))×10-3. We study the invariant mass spectrum...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2006
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| _version_ | 1797082938109591552 |
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| author | Aubert, B Barate, R Bona, M Boutigny, D Couderc, F Karyotakis, Y Lees, J Poireau, V Tisserand, V Zghiche, A Grauges, E Palano, A Pappagallo, M Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Battaglia, M Brown, D Button-Shafer, J |
| author_facet | Aubert, B Barate, R Bona, M Boutigny, D Couderc, F Karyotakis, Y Lees, J Poireau, V Tisserand, V Zghiche, A Grauges, E Palano, A Pappagallo, M Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Battaglia, M Brown, D Button-Shafer, J |
| author_sort | Aubert, B |
| collection | OXFORD |
| description | We report on a study of the decay B̄0→D*+ωπ- with the BABAR detector at the PEP-II B-factory at the Stanford Linear Accelerator Center. Based on a sample of 232×106 BB̄ decays, we measure the branching fraction B(B̄0→D*+ωπ-)=(2.88±0. 21(stat.)±0.31(syst.))×10-3. We study the invariant mass spectrum of the ωπ- system in this decay. This spectrum is in good agreement with expectations based on factorization and the measured spectrum in τ-→ωπ-ντ. We also measure the polarization of the D*+ as a function of the ωπ- mass. In the mass region 1.1 to 1.9 GeV we measure the fraction of longitudinal polarization of the D*+ to be ΓL/Γ=0.654±0.042(stat.)±0.016(syst.). This is in agreement with the expectations from heavy-quark effective theory and factorization assuming that the decay proceeds as B̄0→ D*+ρ(1450)-, ρ(1450)-→ωπ-. © 2006 The American Physical Society. |
| first_indexed | 2024-03-07T01:35:00Z |
| format | Journal article |
| id | oxford-uuid:94ddfb53-db95-49d1-a143-c3943153f537 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:35:00Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:94ddfb53-db95-49d1-a143-c3943153f5372022-03-26T23:42:22ZStudy of the decay B̄0→D*+ωπ-Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:94ddfb53-db95-49d1-a143-c3943153f537EnglishSymplectic Elements at Oxford2006Aubert, BBarate, RBona, MBoutigny, DCouderc, FKaryotakis, YLees, JPoireau, VTisserand, VZghiche, AGrauges, EPalano, APappagallo, MChen, JQi, NRong, GWang, PZhu, YEigen, GOfte, IStugu, BAbrams, GBattaglia, MBrown, DButton-Shafer, JWe report on a study of the decay B̄0→D*+ωπ- with the BABAR detector at the PEP-II B-factory at the Stanford Linear Accelerator Center. Based on a sample of 232×106 BB̄ decays, we measure the branching fraction B(B̄0→D*+ωπ-)=(2.88±0. 21(stat.)±0.31(syst.))×10-3. We study the invariant mass spectrum of the ωπ- system in this decay. This spectrum is in good agreement with expectations based on factorization and the measured spectrum in τ-→ωπ-ντ. We also measure the polarization of the D*+ as a function of the ωπ- mass. In the mass region 1.1 to 1.9 GeV we measure the fraction of longitudinal polarization of the D*+ to be ΓL/Γ=0.654±0.042(stat.)±0.016(syst.). This is in agreement with the expectations from heavy-quark effective theory and factorization assuming that the decay proceeds as B̄0→ D*+ρ(1450)-, ρ(1450)-→ωπ-. © 2006 The American Physical Society. |
| spellingShingle | Aubert, B Barate, R Bona, M Boutigny, D Couderc, F Karyotakis, Y Lees, J Poireau, V Tisserand, V Zghiche, A Grauges, E Palano, A Pappagallo, M Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Battaglia, M Brown, D Button-Shafer, J Study of the decay B̄0→D*+ωπ- |
| title | Study of the decay B̄0→D*+ωπ- |
| title_full | Study of the decay B̄0→D*+ωπ- |
| title_fullStr | Study of the decay B̄0→D*+ωπ- |
| title_full_unstemmed | Study of the decay B̄0→D*+ωπ- |
| title_short | Study of the decay B̄0→D*+ωπ- |
| title_sort | study of the decay b0 d ωπ |
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