| 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 | 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.other | Universidad de Cantabria | es_ES |
| dc.date.accessioned | 2013-04-29T12:50:36Z | |
| dc.date.available | 2013-04-29T12:50:36Z | |
| dc.date.issued | 2010-03-11 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.issn | 1079-7114 | |
| dc.identifier.uri | http://hdl.handle.net/10902/2002 | |
| dc.description.abstract | We report a measurement of the lifetime of the Λb0 baryon in decays to the Λc+π- final state in a sample corresponding to 1.1 fb-1 collected in pp̅ collisions at √s=1.96 TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Λb0 events we measure τ(Λb0)=1.401±0.046(stat)±0.035(syst) ps (corresponding to cτ(Λb0)=420.1±13.7(stat)±10.6(syst) μm, where c is the speed of light). The ratio of this result and the world average B0 lifetime yields τ(Λb0)/τ(B0)=0.918±0.038 (stat) and (syst), in good agreement with recent theoretical predictions. | 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 World Class
University Program, the National Research Foundation
of Korea; the Science and Technology Facilities Council
and the Royal Society, UK; 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; and the
Academy of Finland. | |
| dc.format.extent | 8 p. | es_ES |
| dc.language.iso | eng | es_ES |
| dc.publisher | American Physical Society | es_ES |
| dc.rights | © 2010 The American Physical Society | es_ES |
| dc.source | Physical Review Letters, 2010, 104, 102002 | es_ES |
| dc.title | Measurement of the Λb0 Lifetime in Λb0→Λc+π- Decays in pp̅ Collisions at √s=1.96 TeV | es_ES |
| dc.type | info:eu-repo/semantics/article | es_ES |
| dc.relation.publisherVersion | http://dx.doi.org/10.1103/PhysRevLett.104.102002 | |
| dc.rights.accessRights | openAccess | es_ES |
| dc.identifier.DOI | 10.1103/PhysRevLett.104.102002 | |
| dc.type.version | publishedVersion | es_ES |
