Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/140655
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | BABAR Collaboration | - |
dc.date.accessioned | 2019-09-20T14:14:05Z | - |
dc.date.available | 2019-09-20T14:14:05Z | - |
dc.date.issued | 2005-07-20 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/140655 | - |
dc.description.abstract | We report the first measurement of the branching fraction f 00 for Υ ( 4 S ) → B 0 ¯¯¯ B 0 . The data sample consists of 81.7 fb − 1 collected at the Υ ( 4 S ) resonance with the BABAR detector at the SLAC PEP-II asymmetric-energy e + e − storage ring. Using partial reconstruction of the decay ¯¯¯ B 0 → D * + ℓ − ¯ ν ℓ in which only the charged lepton and the soft pion from the decay D * + → D 0 π + are reconstructed, we obtain f 00 = 0.487 ± 0.010 ( stat ) ± 0.008 ( syst ) . Our result does not depend on the branching fractions of ¯¯¯ B 0 → D * + ℓ − ¯ ν ℓ and D * + → D 0 π + decays, on the ratio of the charged and neutral B meson lifetimes, nor on the assumption of isospin symmetry. | - |
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.95.042001 | - |
dc.relation.ispartof | Physical Review Letters, 2005, vol. 95, num. 4, p. 042001 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.95.042001 | - |
dc.rights | (c) American Physical Society, 2005 | - |
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 of Υ(4S)→B0¯¯¯B0 | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 539076 | - |
dc.date.updated | 2019-09-20T14:14:05Z | - |
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 | |
---|---|---|---|---|
539076.pdf | 153.09 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.