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http://hdl.handle.net/2445/133354
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DC Field | Value | Language |
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dc.contributor.author | Abellan Beteta, Carlos | - |
dc.contributor.author | Calvo Gómez, Míriam | - |
dc.contributor.author | Camboni, Alessandro | - |
dc.contributor.author | Comerma Montells, Albert | - |
dc.contributor.author | Domingo Bonal, Francesc | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Graciani Díaz, Ricardo | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | López Asamar, Elias | - |
dc.contributor.author | Pérez-Calero Yzquierdo, Antonio | - |
dc.contributor.author | Picatoste Olloqui, Eduardo | - |
dc.contributor.author | Potterat, Cédric | - |
dc.contributor.author | Rives Molina, Vicente José | - |
dc.contributor.author | Ruiz, Hugo (Ruiz Pérez) | - |
dc.contributor.author | Vázquez Gómez, Ricard | - |
dc.contributor.author | Vilasis-Cardona, Xavier | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2019-05-17T11:30:27Z | - |
dc.date.available | 2019-05-17T11:30:27Z | - |
dc.date.issued | 2013-05-02 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/133354 | - |
dc.description.abstract | Bottom baryons decaying to a J / ψ meson and a hyperon are reconstructed using 1.0 fb − 1 of data collected in 2011 with the LHCb detector. Significant Λ 0 b → J / ψ Λ , Ξ − b → J / ψ Ξ − and Ω − b → J / ψ Ω − signals are observed and the corresponding masses are measured to be M ( Λ 0 b ) = 5619.53 ± 0.13 ( stat . ) ± 0.45 ( syst . ) MeV / c 2 , M ( Ξ − b ) = 5795.8 ± 0.9 ( stat . ) ± 0.4 ( syst . ) MeV / c 2 , M ( Ω − b ) = 6046.0 ± 2.2 ( stat . ) ± 0.5 ( syst . ) MeV / c 2 , while the differences with respect to the Λ 0 b mass are M ( Ξ − b ) − M ( Λ 0 b ) = 176.2 ± 0.9 ( stat . ) ± 0.1 ( syst . ) MeV / c 2 , M ( Ω − b ) − M ( Λ 0 b ) = 426.4 ± 2.2 ( stat . ) ± 0.4 ( syst . ) MeV / c 2 . These are the most precise mass measurements of the Λ 0 b , Ξ − b and Ω − b baryons to date. Averaging the above Λ 0 b mass measurement with that published by LHCb using 35 pb − 1 of data collected in 2010 yields M ( Λ 0 b ) = 5619.44 ± 0.13 ( stat . ) ± 0.38 ( syst . ) MeV / c 2 . | - |
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/PhysRevLett.110.182001 | - |
dc.relation.ispartof | Physical Review Letters, 2013, vol. 110, num. 18, p. 182001 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.110.182001 | - |
dc.rights | (c) American Physical Society, 2013 | - |
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 Λ0b, Ξ−b, and Ω−b Baryon Masses | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 628985 | - |
dc.date.updated | 2019-05-17T11:30:27Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
Files in This Item:
File | Description | Size | Format | |
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628985.pdf | 231.18 kB | Adobe PDF | View/Open |
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