Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B+→ρ0K*+ and B+→f0(980)K*+ decays
We present measurements of the branching fractions, longitudinal polarization, and direct CP-violation asymmetries for the decays B+→ρ0K*+ and B+→f0(980)K*+ with a sample of (467±5)×106B¯¯¯B pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e− collider at the SLAC National Ac...
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| Main Authors: | , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
8 March 2011
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2011, Volume: 83, Issue: 5, Pages: 1-8 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.83.051101 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.83.051101 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.83.051101 
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| Author Notes: | The BABAR Collaboration* |
| Summary: | We present measurements of the branching fractions, longitudinal polarization, and direct CP-violation asymmetries for the decays B+→ρ0K*+ and B+→f0(980)K*+ with a sample of (467±5)×106B¯¯¯B pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e− collider at the SLAC National Accelerator Laboratory. We observe B+→ρ0K*+ with a significance of 5.3σ and measure the branching fraction B(B+→ρ0K*+)=(4.6±1.0±0.4)×10−6, the longitudinal polarization fL=0.78±0.12±0.03, and the CP-violation asymmetry ACP=0.31±0.13±0.03. We observe B+→f0(980)K*+ and measure the branching fraction B(B+→f0(980)K*+)×B(f0(980)→π+π−)=(4.2±0.6±0.3)×10−6 and the CP-violation asymmetry ACP=−0.15±0.12±0.03. The first uncertainty quoted is statistical and the second is systematic. |
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| Item Description: | *The BABAR Collaboration: P. del Amo Sanchez, J. Marks, U. Uwer [und 434 weitere Personen] Im Titel sind die Zeichen +, - und * sowie die Zahl 0 hochgestellt Im Titel ist die Zahl 0 im Ausdruck "f0(980)K*+" tiefgestellt Gesehen am 05.10.2022 |
| Physical Description: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.83.051101 |