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http://hdl.handle.net/2445/174899
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DC Field | Value | Language |
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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 | García Moreno, P. | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Gascón Fora, David | - |
dc.contributor.author | Gironella Gironell, Pere | - |
dc.contributor.author | Golobardes, Elisabet | - |
dc.contributor.author | Graciani Díaz, Ricardo | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | Manera Escalero, R. | - |
dc.contributor.author | Vilasis-Cardona, Xavier | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2021-03-11T10:42:56Z | - |
dc.date.available | 2021-03-11T10:42:56Z | - |
dc.date.issued | 2020-11-12 | - |
dc.identifier.issn | 2470-0010 | - |
dc.identifier.uri | http://hdl.handle.net/2445/174899 | - |
dc.description.abstract | A study of the lineshape of the χc1(3872) state is made using a data sample corresponding to an integrated luminosity of 3 fb−1 collected in pp collisions at center-of-mass energies of 7 and 8 TeV with the LHCb detector. Candidate χc1(3872) and ψ(2S) mesons from b-hadron decays are selected in the J/ψπ+π− decay mode. Describing the lineshape with a Breit-Wigner function, the mass splitting between the χc1(3872) and ψ(2S) states, Δm, and the width of the χc1(3872) state, ΓBW, are determined to be Δm=185.598±0.067±0.068 MeV,ΓBW=1.39±0.24±0.10 MeV, where the first uncertainty is statistical and the second systematic. Using a Flatté-inspired model, the mode and full width at half maximum of the lineshape are determined to be mode=3871.69+0.00+0.05−0.04−0.13 MeV,FWHM=0.22+0.07+0.11−0.06−0.13 MeV. An investigation of the analytic structure of the Flatté amplitude reveals a pole structure, which is compatible with a quasibound D0¯D*0 state but a quasivirtual state is still allowed at the level of 2 standard deviations. | - |
dc.format.extent | 20 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.102.092005 | - |
dc.relation.ispartof | Physical Review D, 2020, vol. 102, num. 9, p. 092005 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.102.092005 | - |
dc.rights | cc-by (c) Aaij, R. et al., 2020 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Gran Col·lisionador d'Hadrons | - |
dc.subject.classification | Mesons (Física nuclear) | - |
dc.subject.classification | Barions | - |
dc.subject.other | Large Hadron Collider (France and Switzerland) | - |
dc.subject.other | Mesons (Nuclear physics) | - |
dc.subject.other | Baryons | - |
dc.title | Study of the lineshape of the chi(c1) (3872) state | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 706476 | - |
dc.date.updated | 2021-03-11T10:42:56Z | - |
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 (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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706476.pdf | 2.33 MB | Adobe PDF | View/Open |
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