Observation of New Baryons in the Ξ−b π + π − and Ξ0bπ + π − Systems

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UDC.coleccionInvestigaciónes_ES
UDC.departamentoFísica e Ciencias da Terraes_ES
UDC.endPage11es_ES
UDC.grupoInvFísica e Tecnoloxía Nuclear e Altas Enerxías (FiTNAE)es_ES
UDC.issue17es_ES
UDC.journalTitlePhysical Review Letterses_ES
UDC.startPage1es_ES
UDC.volume131es_ES
dc.contributor.authorHCb Collaboration
dc.contributor.authorAaij, Roel
dc.contributor.authorChobanova, Veronika
dc.date.accessioned2024-10-08T11:17:24Z
dc.date.available2024-10-08T11:17:24Z
dc.date.issued2023-10-27
dc.description.abstract[Abstract] The first observation and study of two new baryonic structures in the final state Ξ0bπþπ− and the confirmation of the Ξbð6100Þ− state in the Ξ−b πþπ− decay mode are reported using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. In addition, the properties of the known Ξ 0 b , Ξ0−b and Ξ −b resonances are measured with improved precision. The new decay mode of the Ξ0b baryon to the Ξþcπ− πþ π− final state is observed and exploited for the first time in these measurements.es_ES
dc.description.sponsorshipWe express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ, and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG, and MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW and NCN (Poland); MCID/IFA (Romania); MICINN (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); DOE NP and NSF (USA). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (Netherlands), PIC (Spain), GridPP (United Kingdom), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), Polish WLCG (Poland), and NERSC (USA). We are indebted to the communities behind the multiple open-source software packages on which we depend. Individual groups or members have received support from ARC and ARDC (Australia); Minciencias (Colombia); AvH Foundation (Germany); EPLANET, Marie Skłodowska-Curie Actions, ERC and NextGenerationEU (European Union); A*MIDEX, ANR, IPhU and Labex P2IO, and Région Auvergne-Rhône-Alpes (France); Key Research Program of Frontier Sciences of CAS, CAS PIFI, CAS CCEPP, Fundamental Research Funds for the Central Universities, and Sci. & Tech. Program of Guangzhou (China); GVA, XuntaGal, GENCAT, Inditex, InTalent and Prog. Atracción Talento, CM (Spain); SRC (Sweden); the Leverhulme Trust, the Royal Society and UKRI (United Kingdom).es_ES
dc.identifier.citationR. Aaij et al., Observation of New Baryons in the Ξ b − π + π − and Ξ b 0 π + π − Systems, Phys. Rev. Lett. 131, 171901 (2023).es_ES
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.131.171901
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/2183/39493
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.relation.urihttps://doi.org/10.1103/PhysRevLett.131.171901es_ES
dc.rightsCreative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/es_ES
dc.rights.accessRightsopen accesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectBottom quark productiones_ES
dc.subjectParticle decayses_ES
dc.subjectBottom baryonses_ES
dc.titleObservation of New Baryons in the Ξ−b π + π − and Ξ0bπ + π − Systemses_ES
dc.typejournal articlees_ES
dspace.entity.typePublication
relation.isAuthorOfPublication5e0725c9-d6cc-4af7-8bd9-4a9a1c85c21f
relation.isAuthorOfPublication.latestForDiscovery5e0725c9-d6cc-4af7-8bd9-4a9a1c85c21f

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