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http://hdl.handle.net/2445/140420
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DC Field | Value | Language |
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dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | BABAR Collaboration | - |
dc.date.accessioned | 2019-09-18T11:00:32Z | - |
dc.date.available | 2019-09-18T11:00:32Z | - |
dc.date.issued | 2006-10-25 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/140420 | - |
dc.description.abstract | We report observations of the b → d penguin-dominated decays B + → ¯¯¯¯ K 0 K + and B 0 → K 0 ¯¯¯¯ K 0 in 316 fb − 1 of e + e − collision data collected with the BABAR detector. We measure the branching fractions B ( B + → ¯¯¯¯ K 0 K + ) = ( 1.61 ± 0.44 ± 0.09 ) × 10 − 6 and B ( B 0 → K 0 ¯¯¯¯ K 0 ) = ( 1.08 ± 0.28 ± 0.11 ) × 10 − 6 and the C P -violating charge asymmetry A C P ( ¯¯¯¯ K 0 K + ) = 0.10 ± 0.26 ± 0.03 . Using a vertexing technique previously employed in several analyses of all-neutral final states containing kaons, we report the first measurement of time-dependent C P -violating asymmetries in B 0 → K 0 S K 0 S , obtaining S = − 1.28 + 0.80 + 0.11 − 0.73 − 0.16 and C = − 0.40 ± 0.41 ± 0.06 . We also report improved measurements of the branching fraction B ( B + → K 0 π + ) = ( 23.9 ± 1.1 ± 1.0 ) × 10 − 6 and C P -violating charge asymmetry A C P ( K 0 π + ) = − 0.029 ± 0.039 ± 0.010 . | - |
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.97.171805 | - |
dc.relation.ispartof | Physical Review Letters, 2006, vol. 97, num. 17, p. 171805 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.97.171805 | - |
dc.rights | (c) American Physical Society, 2006 | - |
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 | Observation of B+→¯¯¯¯K0K+ and B0→K0¯¯¯¯K0 | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 551666 | - |
dc.date.updated | 2019-09-18T11:00:32Z | - |
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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551666.pdf | 272.05 kB | Adobe PDF | View/Open |
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