Measurement of CP asymmetries and branching fraction ratios of B¯ decays to two charm mesons
| UDC.coleccion | Investigación | es_ES |
| UDC.departamento | Física e Ciencias da Terra | es_ES |
| UDC.grupoInv | Física e Tecnoloxía Nuclear e Altas Enerxías (FiTNAE) | es_ES |
| UDC.issue | 9 | es_ES |
| UDC.journalTitle | Journal of High Energy Physics | es_ES |
| UDC.startPage | 202 | es_ES |
| UDC.volume | 2023 | es_ES |
| dc.contributor.author | LHCb Collaboration | |
| dc.contributor.author | Aaij, Roel | |
| dc.contributor.author | Chobanova, Veronika | |
| dc.contributor.author | Bishop, Fionn | |
| dc.date.accessioned | 2025-05-30T15:54:57Z | |
| dc.date.available | 2025-05-30T15:54:57Z | |
| dc.date.issued | 2023-09 | |
| dc.description.abstract | [Abstract] The CP asymmetries of seven B¯ decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9fb¯¹ of proton-proton collisions collected by the LHCb experiment. Decays involving a D* or D*¯s meson are analysed by reconstructing only the D° or D¯s decay products. This paper presents the first measure ment of Acp(B¯ → D*¯s D°) and Acp(B¯ → D¯s D*°), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured. | es_ES |
| dc.description.sponsorship | Article funded by SCOAP³ | es_ES |
| dc.description.sponsorship | We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staf 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.citation | The LHCb collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Measurement of CP asymmetries and branching fraction ratios of B¯ decays to two charm mesons. J. High Energ. Phys. 2023, 202 (2023). https://doi.org/10.1007/JHEP09(2023)202 | es_ES |
| dc.identifier.doi | https://doi.org/10.1007/JHEP09(2023)202 | |
| dc.identifier.issn | 1029-8479 | |
| dc.identifier.uri | http://hdl.handle.net/2183/42114 | |
| dc.language.iso | eng | es_ES |
| dc.publisher | Springer | es_ES |
| dc.relation.uri | https://doi.org/10.1007/JHEP09(2023)202 | es_ES |
| dc.rights | Attribution 4.0 International | es_ES |
| dc.rights.accessRights | open access | es_ES |
| dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
| dc.subject | CP Violation | es_ES |
| dc.subject | Flavour Physics | es_ES |
| dc.subject | Hadron-Hadron Scattering | es_ES |
| dc.subject | Branching fraction | es_ES |
| dc.title | Measurement of CP asymmetries and branching fraction ratios of B¯ decays to two charm mesons | es_ES |
| dc.type | journal article | es_ES |
| dc.type.hasVersion | VoR | es_ES |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 5e0725c9-d6cc-4af7-8bd9-4a9a1c85c21f | |
| relation.isAuthorOfPublication.latestForDiscovery | 5e0725c9-d6cc-4af7-8bd9-4a9a1c85c21f |
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