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http://hdl.handle.net/2445/131542
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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 | 2019-04-05T10:33:59Z | - |
dc.date.available | 2019-04-05T10:33:59Z | - |
dc.date.issued | 2008-06-26 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131542 | - |
dc.description.abstract | We present a study of the decay B − → D 0 ( C P ) K − and its charge conjugate, where D 0 ( C P ) is reconstructed in both a non- C P flavor eigenstate and in C P ( C P -even and C P -odd) eigenstates, based on a sample of 382 million Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II e + e − storage ring. We measure the direct C P asymmetries A C P ± and the ratios of the branching fractions R C P ± : A C P + = 0.27 ± 0.09 ( stat ) ± 0.04 ( syst ) , A C P − = − 0.09 ± 0.09 ( stat ) ± 0.02 ( syst ) , R C P + = 1.06 ± 0.10 ( stat ) ± 0.05 ( syst ) , R C P − = 1.03 ± 0.10 ( stat ) ± 0.05 ( syst ) . We also express the results in terms of the so-called Cartesian coordinates x + , x − , and r 2 : x + = − 0.09 ± 0.05 ( stat ) ± 0.02 ( syst ) , x − = 0.10 ± 0.05 ( stat ) ± 0.03 ( syst ) , r 2 = 0.05 ± 0.07 ( stat ) ± 0.03 ( syst ) . These results will help to better constrain the phase parameter γ = arg ( − V u d V ∗ u b / V c d V ∗ c b ) of the Cabibbo-Kobayashi-Maskawa quark mixing matrix. | - |
dc.format.extent | 8 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.77.111102 | - |
dc.relation.ispartof | Physical Review D, 2008, vol. 77, num. 11, p. 111102 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.77.111102 | - |
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 | Improved measurement of CP observables in B±→D0CPK± decays | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 577691 | - |
dc.date.updated | 2019-04-05T10:33:59Z | - |
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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577691.pdf | 227.5 kB | Adobe PDF | View/Open |
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