Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/185543
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | LHCb collaboration | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Gascón Fora, David | - |
dc.contributor.author | Graciani Diaz, Ricardo | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | Marin Benito, Carla | - |
dc.contributor.author | Picatoste Olloqui, E. | - |
dc.contributor.author | Rives Molina, V. | - |
dc.contributor.author | Ruiz, H. | - |
dc.date.accessioned | 2022-05-12T18:01:26Z | - |
dc.date.available | 2022-05-12T18:01:26Z | - |
dc.date.issued | 2015-07-30 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/2445/185543 | - |
dc.description.abstract | The decay B 0 s → ψ(2S)K+π − is observed using a data set corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV. The branching fraction relative to the B0 → ψ(2S)K+π − decay mode is measured to be B(B 0 s → ψ(2S)K+π −) B(B0 → ψ(2S)K+π−) = 5.38 ± 0.36 (stat) ± 0.22 (syst) ± 0.31 (fs/fd) %, where fs/fd indicates the uncertainty due to the ratio of probabilities for a b quark to hadronise into a B0 s or B0 meson. Using an amplitude analysis, the fraction of decays proceeding via an intermediate K∗ (892)0 meson is measured to be 0.645 ± 0.049 (stat) ± 0.049 (syst) and its longitudinal polarisation fraction is 0.524±0.056 (stat)±0.029 (syst). The relative branching fraction for this component is determined to be B(B 0 s → ψ(2S)K∗ (892)0 ) B(B0 → ψ(2S)K∗(892)0) = 5.58 ± 0.57 (stat) ± 0.40 (syst) ± 0.32 (fs/fd) %. In addition, the mass splitting between the B0 s and B0 mesons is measured as M(B 0 s ) − M(B 0 ) = 87.45 ± 0.44 (stat) ± 0.09 (syst) MeV/c2 . | - |
dc.format.extent | 22 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1016/j.physletb.2015.06.038 | - |
dc.relation.ispartof | Physics Letters B, 2015, vol. 747, p. 484-494 | - |
dc.relation.uri | https://doi.org/10.1016/j.physletb.2015.06.038 | - |
dc.rights | cc-by (c) LHCb collaboration et al., 2015 | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Hadrons | - |
dc.subject.classification | Gran Col·lisionador d'Hadrons | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Hadrons | - |
dc.subject.other | Large Hadron Collider (France and Switzerland) | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Observation of the decay Bbars0 → ψ (2 S)K+π- | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 656766 | - |
dc.date.updated | 2022-05-12T18:01:26Z | - |
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 | |
---|---|---|---|---|
656766.pdf | 733.01 kB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License