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https://hdl.handle.net/2445/131495
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DC Field | Value | Language |
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dc.contributor.author | Garra Ticó, Jordi | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | BABAR Collaboration | - |
dc.date.accessioned | 2019-04-05T10:17:09Z | - |
dc.date.available | 2019-04-05T10:17:09Z | - |
dc.date.issued | 2008-11-10 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | https://hdl.handle.net/2445/131495 | - |
dc.description.abstract | We report a study of B ± → D ∗ K ± decays with D ∗ decaying to D π 0 or D γ , using 383 × 10 6 B ¯¯¯ B pairs collected at the Υ ( 4 S ) resonance with the BABAR detector at the SLAC PEP-II B Factory. The D meson decays under study include a non- C P mode ( K ± π ∓ ) , C P -even modes ( K ± K ∓ , π ± π ∓ ) , and C P -odd modes ( K 0 S π 0 , K 0 S ϕ , K 0 S ω ) . We measure ratios ( R ∗ C P ± ) of branching fractions of decays to C P eigenmode states and to flavor-specific states as well as C P asymmetries ( A ∗ C P ± ). These measurements are sensitive to the unitarity triangle angle γ . We obtain A ∗ C P + = − 0.11 ± 0.09 ± 0.01 , R ∗ C P + = 1.31 ± 0.13 ± 0.04 , and A ∗ C P − = 0.06 ± 0.10 ± 0.02 , R ∗ C P − = 1.10 ± 0.12 ± 0.04 , where the first error is statistical and the second error is systematic. Translating our results into an alternative parametrization, widely used for related measurements, we obtain x ∗ + = 0.11 ± 0.06 ± 0.02 and x ∗ − = 0.00 ± 0.06 ± 0.02 . No significant C P -violating charge asymmetry is found in either the flavor-specific mode D → K ± π ∓ or in B ± → D ∗ π ± decays. | - |
dc.format.extent | 13 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.78.092002 | - |
dc.relation.ispartof | Physical Review D, 2008, vol. 78, num. 9, p. 092002 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.78.092002 | - |
dc.rights | (c) American Physical Society, 2008 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Measurement of ratios of branching fractions and CP-violating asymmetries of B±→D∗K± decays | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 577671 | - |
dc.date.updated | 2019-04-05T10:17:09Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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577671.pdf | 642.62 kB | Adobe PDF | View/Open |
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