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http://hdl.handle.net/2445/162291
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DC Field | Value | Language |
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dc.contributor.author | LHCb Collaboration | - |
dc.contributor.author | Alfonso Albero, Alejandro | - |
dc.contributor.author | Calvo Gómez, Míriam | - |
dc.contributor.author | Camboni, Alessandro | - |
dc.contributor.author | Coquereau, Samuel | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Gascón Fora, David | - |
dc.contributor.author | Gironella Gironell, Pere | - |
dc.contributor.author | Graciani Díaz, Ricardo | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | Vilasis-Cardona, Xavier | - |
dc.contributor.author | Marin Benito, Carla | - |
dc.date.accessioned | 2020-05-25T13:17:28Z | - |
dc.date.available | 2020-05-25T13:17:28Z | - |
dc.date.issued | 2019-08-01 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/162291 | - |
dc.description.abstract | We report measurements of the lifetimes of the Λþc , Ξþc and Ξ0 c charm baryons using proton-proton collision data at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment. The charm baryons are reconstructed through the decays Λþc → pK−πþ, Ξþc → pK−πþ and Ξ0c → pK−K−πþ, and originate from semimuonic decays of beauty baryons. The lifetimes are measured relative to that of the Dþ meson, and are determinedto be τΛþc ¼ 203.51.01.31.4 fs; τΞþc ¼ 456.83.52.93.1 fs; τΞ0 c ¼ 154.51.71.61.0 fs; where the uncertainties are statistical, systematic, and due to the uncertainty in the Dþ lifetime. The measurements are approximately 3-4 times more precise than the current world average values. The Λþc and Ξþ c lifetimes are in agreement with previous measurements; however, the Ξ0 c baryon lifetime is approximately 3.3 standard deviations larger than the world average value. | - |
dc.format.extent | 12 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.100.032001 | - |
dc.relation.ispartof | Physical Review D, 2019, num. 100, p. 032001 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.100.032001 | - |
dc.rights | (c) American Physical Society, 2019 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Barions | - |
dc.subject.classification | Col·lisions (Astrofísica) | - |
dc.subject.other | Baryons | - |
dc.subject.other | Collisions (Astrophysics) | - |
dc.title | Precision measurement of the Λc+, Ξc+, and Ξc0 baryon lifetimes | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 696365 | - |
dc.date.updated | 2020-05-25T13:17:29Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/792684/EU//pANUCSTR | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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696365.pdf | 787.41 kB | Adobe PDF | View/Open |
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