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http://hdl.handle.net/2445/131600
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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 | 2019-04-05T11:13:22Z | - |
dc.date.available | 2019-04-05T11:13:22Z | - |
dc.date.issued | 2009-11-20 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131600 | - |
dc.description.abstract | We present measurements of the branching fraction B and longitudinal polarization fraction f L for B 0 → a 1 ( 1260 ) + a 1 ( 1260 ) − decays, with a 1 ( 1260 ) ± → π − π + π ± . The data sample, collected with the BABAR detector at the SLAC National Accelerator Laboratory, represents 465 × 10 6 produced B ¯¯¯ B pairs. We measure B ( B 0 → a 1 ( 1260 ) + a 1 ( 1260 ) − ) × [ B ( a 1 ( 1260 ) + → π − π + π + ) ] 2 = ( 11.8 ± 2.6 ± 1.6 ) × 10 − 6 and f L = 0.31 ± 0.22 ± 0.10 , where the first uncertainty is statistical and the second systematic. The decay mode is measured with a significance of 5.0 standard deviations including systematic uncertainties. | - |
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.80.092007 | - |
dc.relation.ispartof | Physical Review D, 2009, vol. 80, num. 9, p. 092007 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.80.092007 | - |
dc.rights | (c) American Physical Society, 2009 | - |
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 and polarization measurement of B0→a1(1260)+a1(1260)− decay | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 577731 | - |
dc.date.updated | 2019-04-05T11:13:22Z | - |
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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577731.pdf | 169.96 kB | Adobe PDF | View/Open |
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