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http://hdl.handle.net/2445/132867
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DC Field | Value | Language |
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dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | BABAR Collaboration | - |
dc.contributor.author | Belle Collaboration | - |
dc.date.accessioned | 2019-05-08T15:39:34Z | - |
dc.date.available | 2019-05-08T15:39:34Z | - |
dc.date.issued | 2015-09-16 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/132867 | - |
dc.description.abstract | We report a measurement of the time-dependent C P asymmetry of ¯ B 0 → D ( * ) C P h 0 decays, where the light neutral hadron h 0 is a π 0 , η , or ω meson, and the neutral D meson is reconstructed in the C P eigenstates K + K − , K 0 S π 0 , or K 0 S ω . The measurement is performed combining the final data samples collected at the Υ ( 4 S ) resonance by the BABAR and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain ( 471 ± 3 ) × 10 6 B ¯ B pairs recorded by the BABAR detector and ( 772 ± 11 ) × 10 6 B ¯ B pairs recorded by the Belle detector. We measure the C P asymmetry parameters − η f S = + 0.66 ± 0.10 ( stat ) ± 0.06 ( syst ) and C = − 0.02 ± 0.07 ( stat ) ± 0.03 ( syst ) . These results correspond to the first observation of C P violation in ¯ B 0 → D ( * ) C P h 0 decays. The hypothesis of no mixing-induced C P violation is excluded in these decays at the level of 5.4 standard deviations. | - |
dc.format.extent | 10 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/PhysRevLett.115.121604 | - |
dc.relation.ispartof | Physical Review Letters, 2015, vol. 115, num. 12, p. 121604 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.115.121604 | - |
dc.rights | (c) American Physical Society, 2015 | - |
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 | First Observation of CP Violation in ¯B0→D(*)CPh0 Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 656902 | - |
dc.date.updated | 2019-05-08T15:39:34Z | - |
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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656902.pdf | 375.14 kB | Adobe PDF | View/Open |
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