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http://hdl.handle.net/2445/185496
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DC Field | Value | Language |
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dc.contributor.author | Alfonso Albero, Alejandro | - |
dc.contributor.author | Garcia Moreno, P. | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Gironella Gironell, P. | - |
dc.contributor.author | Gomez Fernandez, S. | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | Lobo Salvia, A. | - |
dc.contributor.author | Mauricio, J. | - |
dc.contributor.author | Vazquez Gomez, R. | - |
dc.contributor.author | Marin Benito, Carla | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2022-05-10T15:39:10Z | - |
dc.date.available | 2022-05-10T15:39:10Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 1126-6708 | - |
dc.identifier.uri | http://hdl.handle.net/2445/185496 | - |
dc.description.abstract | The decays Bs0 → J/ψπ+π−K+K− are studied using a data set corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The decays Bs0 → J / ψK∗ 0K ¯ ∗ 0 and Bs0 → χc1(3872)K+K−, where the K+K−pair does not originate from a ϕ meson, are observed for the first time. Precise measurements of the ratios of branching fractions between intermediate χc1(3872)ϕ, J / ψK∗ 0K ¯ ∗ 0, ψ(2S)ϕ and χc1(3872)K+K− states are reported. A structure, denoted as X(4740), is observed in the J/ψϕ mass spectrum and, assuming a Breit-Wigner parameterisation, its mass and width are determined to be mX(4740)=4741±6±6MeV/c2,ΓX(4740)=53±15±11MeV, where the first uncertainty is statistical and the second is systematic. In addition, the most precise single measurement of the mass of the Bs0 meson is performed and gives a value of mBs0=5366.98±0.07±0.13MeV/c2 | - |
dc.format.extent | 34 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Springer Verlag | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1007/JHEP02(2021)024 | - |
dc.relation.ispartof | Journal of High Energy Physics, 2021, vol. 2021, p. 1-34 | - |
dc.relation.uri | https://doi.org/10.1007/JHEP02(2021)024 | - |
dc.rights | cc-by (c) Alfonso Albero, Alejandro et al., 2021 | - |
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 | Study of Bs0 → J/ψπ+π−K+K− decays | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 721084 | - |
dc.date.updated | 2022-05-10T15:39:11Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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721084.pdf | 927.93 kB | Adobe PDF | View/Open |
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