To access the full text documents, please follow this link: http://hdl.handle.net/2445/131787
dc.contributor | Universitat de Barcelona |
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dc.contributor.author | Abellan Beteta, Carlos |
dc.contributor.author | Calvo Gómez, Míriam |
dc.contributor.author | Camboni, Alessandro |
dc.contributor.author | Comerma Montells, Albert |
dc.contributor.author | Domingo Bonal, Francesc |
dc.contributor.author | Garrido Beltrán, Lluís |
dc.contributor.author | Grabalosa Gándara, Marc |
dc.contributor.author | Graciani Díaz, Ricardo |
dc.contributor.author | Graugés Pous, Eugeni |
dc.contributor.author | López Asamar, Elias |
dc.contributor.author | Pérez-Calero Yzquierdo, Antonio |
dc.contributor.author | Picatoste Olloqui, Eduardo |
dc.contributor.author | Pie Valls, B. (Blai) |
dc.contributor.author | Potterat, Cédric |
dc.contributor.author | Rives Molina, Vicente José |
dc.contributor.author | Ruiz, Hugo (Ruiz Pérez) |
dc.contributor.author | Vázquez Gómez, Ricard |
dc.contributor.author | Vilasis-Cardona, Xavier |
dc.contributor.author | LHCb Collaboration |
dc.date | 2019-04-08T11:48:03Z |
dc.date | 2019-04-08T11:48:03Z |
dc.date | 2012-12-01 |
dc.date | 2019-04-08T11:48:03Z |
dc.identifier.citation | 1550-7998 |
dc.identifier.citation | 619647 |
dc.identifier.uri | http://hdl.handle.net/2445/131787 |
dc.description.abstract | The first observation of the decays ¯¯¯ B 0 s → D + s K − π + π − and ¯¯¯ B 0 → D + s K − π + π − are reported using an integrated luminosity of 1.0 fb − 1 recorded by the LHCb experiment. The branching fractions, normalized with respect to ¯¯¯ B 0 s → D + s π − π + π − and ¯¯¯ B 0 s → D + s K − π + π − , respectively, are measured to be B ( ¯¯¯ B 0 s → D + s K − π + π − ) B ( ¯¯¯ B 0 s → D + s π − π + π − ) = ( 5.2 ± 0.5 ± 0.3 ) × 10 − 2 and B ( ¯¯¯ B 0 → D + s K − π + π − ) B ( ¯¯¯ B 0 s → D + s K − π + π − ) = 0.54 ± 0.07 ± 0.07 , where the first uncertainty is statistical and the second is systematic. The ¯¯¯ B 0 s → D + s K − π + π − decay is of particular interest as it can be used to measure the weak phase γ . First observation of the ¯¯¯ B 0 s → D s 1 ( 2536 ) + π − , D + s 1 → D + s π − π + decay is also presented, and its branching fraction relative to ¯¯¯ B 0 s → D + s π − π + π − is found to be B ( ¯¯¯ B 0 s → D s 1 ( 2536 ) + π − , D + s 1 → D + s π − π + ) B ( ¯¯¯ B 0 s → D + s π − π + π − ) = ( 4.0 ± 1.0 ± 0.4 ) × 10 − 3 |
dc.format | 11 p. |
dc.format | application/pdf |
dc.language.iso | eng |
dc.publisher | American Physical Society |
dc.relation | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.86.112005 |
dc.relation | Physical Review D, 2012, vol. 86, num. 11, p. 112005 |
dc.relation | https://doi.org/10.1103/PhysRevD.86.112005 |
dc.rights | cc by (c) CERN; LHCb Collaboration, 2012 |
dc.rights | info:eu-repo/semantics/openAccess |
dc.rights | http://creativecommons.org/licenses/by/3.0/es/ |
dc.subject | Física de partícules |
dc.subject | Experiments |
dc.subject | Particle physics |
dc.subject | Experiments |
dc.title | First observation of the decays ¯¯¯B0(s)→D+sK−π+π− and ¯¯¯B0s→Ds1(2536)+π− |
dc.type | info:eu-repo/semantics/article |
dc.type | info:eu-repo/semantics/publishedVersion |