| 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 | 2013-05-21T11:37:09Z | |
| dc.date.available | 2013-05-21T11:37:09Z | |
| dc.date.issued | 2011-08-31 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.issn | 1079-7114 | |
| dc.identifier.uri | http://hdl.handle.net/10902/2152 | |
| dc.description.abstract | The observation of the bottom, strange baryon Ξb0 through the decay chain Ξb0→Ξc+π-, where Ξc+→Ξ-π+π+, Ξ-→Λπ-, and Λ→pπ-, is reported by using data corresponding to an integrated luminosity of 4.2 fb-1 from pp̅ collisions at √s=1.96 TeV recorded with the Collider Detector at Fermilab. A signal of 25.3-5.4+5.6 candidates is observed whose probability of arising from a background fluctuation is 3.6×10-12, corresponding to 6.8 Gaussian standard deviations. The Ξb0 mass is measured to be 5787.8±5.0(stat)±1.3(syst) MeV/c2. In addition, the Ξb- baryon is observed through the process Ξb-→Ξc0π-, where Ξc0→Ξ-π+, Ξ-→Λπ-, and Λ→pπ-. | es_ES |
| dc.description.sponsorship | 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, United Kingdom; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; 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. | |
| dc.format.extent | 7 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(10), 102001 | es_ES |
| dc.title | Observation of the Ξb0 Baryon | es_ES |
| dc.type | info:eu-repo/semantics/article | es_ES |
| dc.relation.publisherVersion | http://dx.doi.org/10.1103/PhysRevLett.107.102001 | |
| dc.rights.accessRights | openAccess | es_ES |
| dc.identifier.DOI | 10.1103/PhysRevLett.107.102001 | |
| dc.type.version | publishedVersion | es_ES |
