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http://hdl.handle.net/2445/131424
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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 | 2019-04-04T13:27:47Z | - |
dc.date.available | 2019-04-04T13:27:47Z | - |
dc.date.issued | 2006-11-01 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131424 | - |
dc.description.abstract | We study the decay B 0 → D * + D * − K 0 S using ( 230 ± 2 ) × 10 6 B ¯¯¯ B pairs collected by the BABAR detector at the PEP-II B factory. We measure a branching fraction B ( B 0 → D * + D * − K 0 S ) = ( 4.4 ± 0.4 ± 0.7 ) × 10 − 3 and find evidence for the decay B 0 → D * − D + s 1 ( 2536 ) with a significance of 4.6 σ . A time-dependent C P asymmetry analysis is also performed to study the possible resonant contributions to B 0 → D * + D * − K 0 S and the sign of cos 2 β . Our measurement indicates that there is a sizable resonant contribution to the decay B 0 → D * + D * − K 0 S from an unknown D + s 1 state with large width, and that cos 2 β is positive at the 94% confidence level under certain theoretical assumptions. | - |
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.74.091101 | - |
dc.relation.ispartof | Physical Review D, 2006, vol. 74, num. 9, p. 091101(R) | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.74.091101 | - |
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 | Measurement of the branching fraction and time-dependent CP asymmetry in the decay B0→D*+D*−K0s | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 551667 | - |
dc.date.updated | 2019-04-04T13:27:47Z | - |
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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551667.pdf | 208.82 kB | Adobe PDF | View/Open |
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