Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131670
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Garra Ticó, Jordi | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | BABAR Collaboration | - |
dc.date.accessioned | 2019-04-05T11:40:29Z | - |
dc.date.available | 2019-04-05T11:40:29Z | - |
dc.date.issued | 2009-02-26 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131670 | - |
dc.description.abstract | We use a sample of 384 × 10 6 B ¯¯¯ B events collected with the BABAR detector at the PEP-II e + e − collider to study angular distributions in the rare decays B → K ∗ ℓ + ℓ − , where ℓ + ℓ − is either e + e − or μ + μ − . For low dilepton invariant masses, m ℓ ℓ < 2.5 GeV / c 2 , we measure a lepton forward-backward asymmetry A FB = 0.24 + 0.18 − 0.23 ± 0.05 and K ∗ longitudinal polarization F L = 0.35 ± 0.16 ± 0.04 . For m ℓ ℓ > 3.2 GeV / c 2 , we measure A FB = 0.76 + 0.52 − 0.32 ± 0.07 and F L = 0.71 + 0.20 − 0.22 ± 0.04 . | - |
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.79.031102 | - |
dc.relation.ispartof | Physical Review D, 2009, vol. 79, num. 3, p. 031102 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.79.031102 | - |
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 | Angular distributions in the decay B→K∗l+l− | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 577767 | - |
dc.date.updated | 2019-04-05T11:40:29Z | - |
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 | |
---|---|---|---|---|
577767.pdf | 265.69 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.