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http://hdl.handle.net/2445/139351
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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 | 2019-09-05T14:53:57Z | - |
dc.date.available | 2019-09-05T14:53:57Z | - |
dc.date.issued | 2008-07-10 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/139351 | - |
dc.description.abstract | We present measurements of the branching fraction and time-dependent C P asymmetries in B 0 → J / ψ π 0 decays based on 466 × 10 6 Υ ( 4 S ) → B ¯¯¯ B events collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We measure the C P asymmetry parameters S = − 1.23 ± 0.21 ( stat ) ± 0.04 ( syst ) and C = − 0.20 ± 0.19 ( stat ) ± 0.03 ( syst ) , where the measured value of ( S , C ) is 4.0 standard deviations from (0, 0) including systematic uncertainties. The branching fraction is determined to be B ( B 0 → J / ψ π 0 ) = [ 1.69 ± 0.14 ( stat ) ± 0.07 ( syst ) ] × 10 − 5 . | - |
dc.format.extent | 7 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.101.021801 | - |
dc.relation.ispartof | Physical Review Letters, 2008, vol. 101, num. 2, p. 021801 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.101.021801 | - |
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 | Evidence for CP Violation in B0→J/ψπ0 Decays | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 577684 | - |
dc.date.updated | 2019-09-05T14:53:57Z | - |
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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577684.pdf | 200.05 kB | Adobe PDF | View/Open |
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