| dc.contributor.author | Aaltonen, Timo Antero | |
| dc.contributor.author | Álvarez González, Bárbara | |
| dc.contributor.author | Casal Laraña, Bruno | |
| dc.contributor.author | Cuevas Maestro, Francisco Javier | |
| dc.contributor.author | Gómez Gramuglio, Gervasio | |
| dc.contributor.author | Palencia Cortezón, José Enrique | |
| dc.contributor.author | Rodrigo Anoro, Teresa | |
| dc.contributor.author | Ruiz Jimeno, Alberto | |
| dc.contributor.author | Scodellaro, Luca | |
| dc.contributor.author | Vila Álvarez, Iván | |
| dc.contributor.author | Vilar Cortabitarte, Rocío | |
| dc.contributor.author | Vizán García, Jesús Manuel | |
| dc.contributor.other | Universidad de Cantabria | es_ES |
| dc.date.accessioned | 2023-04-20T10:22:01Z | |
| dc.date.available | 2023-04-20T10:22:01Z | |
| dc.date.issued | 2011-12 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.issn | 1079-7114 | |
| dc.identifier.uri | https://hdl.handle.net/10902/28550 | |
| dc.description.abstract | We present the first measurement of polarization and CP-violating asymmetries in a B0s decay into two light vector mesons, B0s???, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9??fb?1 of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be fL=0.348±0.041(stat)±0.021(syst), and the branching ratio B(B0s???)=[2.32±0.18(stat)±0.82(syst)]×10?5. Asymmetries of decay angle distributions sensitive to CP violation are measured to be Au=?0.007±0.064(stat)±0.018(syst) and
Av=?0.120±0.064(stat)±0.016(syst). | es_ES |
| dc.description.sponsorship | We thank D. London, A. Datta, M. Gronau, and I. Bigi for valuable discussions on time-integrated TP asymmetries. We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of
Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the
Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, U.K.; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC). | es_ES |
| dc.format.extent | 8 p. | es_ES |
| dc.language.iso | eng | es_ES |
| dc.publisher | American Physical Society | es_ES |
| dc.rights | © 2011 American Physical Society | es_ES |
| dc.source | Physical Review Letters, 2011, 107(26), 261802 | es_ES |
| dc.title | Measurement of polarization and search for CP violation in B <inf>s</inf><sup>0</sup>?ff decays | es_ES |
| dc.type | info:eu-repo/semantics/article | es_ES |
| dc.relation.publisherVersion | https://doi.org/10.1103/PhysRevLett.107.261802 | es_ES |
| dc.rights.accessRights | openAccess | es_ES |
| dc.identifier.DOI | 10.1103/PhysRevLett.107.261802 | |
| dc.type.version | publishedVersion | es_ES |
