Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131190
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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 | 2019-04-02T09:30:16Z | - |
dc.date.available | 2019-04-02T09:30:16Z | - |
dc.date.issued | 2014-03-05 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131190 | - |
dc.description.abstract | We describe searches for B meson decays to the charmless vector-vector final states ω ω and ω ϕ with 471 × 1 0 6 B ¯ B pairs produced in e + e − annihilation at √ s = 10.58 GeV using the BABAR detector at the PEP-II collider at the SLAC National Accelerator Laboratory. We measure the branching fraction B ( B 0 → ω ω ) = ( 1.2 ± 0.3 + 0.3 − 0.2 ) × 10 − 6 , where the first uncertainty is statistical and the second is systematic, corresponding to a significance of 4.4 standard deviations. We also determine the upper limit B ( B 0 → ω ϕ ) < 0.7 × 10 − 6 at 90% confidence level. These measurements provide the first evidence for the decay B 0 → ω ω , and an improvement of the upper limit for the decay B 0 → ω ϕ . | - |
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.89.051101 | - |
dc.relation.ispartof | Physical Review D, 2014, vol. 89, num. 5, p. 051101(R) | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.89.051101 | - |
dc.rights | (c) American Physical Society, 2014 | - |
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 the decay B0 → ωω and search for B0 → ωϕ | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 646457 | - |
dc.date.updated | 2019-04-02T09:30:16Z | - |
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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646457.pdf | 252.52 kB | Adobe PDF | View/Open |
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