Mostrar el registro sencillo del ítem
Observation of the Λ 0 b → J/ψ pπ − decay
| dc.contributor | Universitat Ramon Llull. La Salle | |
| dc.contributor | CERN | |
| dc.contributor.author | Badalov, Alexey | |
| dc.contributor.author | Calvo Gómez, Míriam | |
| dc.contributor.author | Camboni, Alessandro | |
| dc.contributor.author | Vilasís Cardona, Xavier | |
| dc.contributor.author | LHCb Collaboration - CERN | |
| dc.date.accessioned | 2020-11-20T15:39:32Z | |
| dc.date.accessioned | 2023-10-02T06:25:57Z | |
| dc.date.available | 2020-11-20T15:39:32Z | |
| dc.date.available | 2023-10-02T06:25:57Z | |
| dc.date.created | 2014 | |
| dc.date.issued | 2014-07-22 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.14342/3108 | |
| dc.description.abstract | The first observation of the Cabibbo-suppressed decay Λ 0 b → J/ψpπ − is reported using a data sample of proton-proton collisions at 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. A prominent signal is observed and the branching fraction relative to the decay mode Λ 0 b → J/ψpK − is determined to be B(Λ0b→J/ψpπ−)B(Λ0b→J/ψpK−)=0.0824±0.0025 (stat)±0.0042 (syst). A search for direct CP violation is performed. The difference in the CP asymmetries between these two decays is found to be ACP(Λ0b→J/ψpπ−)−ACP(Λ0b→J/ψpK−)=(+5.7±2.4 (stat)±1.2 (syst))%, which is compatible with CP symmetry at the 2.2σ level. | eng |
| dc.format.extent | 19 p. | ca |
| dc.language.iso | eng | ca |
| dc.publisher | Springer | ca |
| dc.relation.ispartof | Journal of High Energy Physics, 2014, Vol. 2014, No.7 (Juliol) | ca |
| dc.rights | Attribution 4.0 International | |
| dc.rights | © CERN | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.source | RECERCAT (Dipòsit de la Recerca de Catalunya) | |
| dc.subject.other | Gran col·lisionador d'hadrons (França i Suïssa) | ca |
| dc.subject.other | Partícules (Física nuclear) | ca |
| dc.subject.other | Col·lisions (Física nuclear) | ca |
| dc.subject.other | Protons | ca |
| dc.title | Observation of the Λ 0 b → J/ψ pπ − decay | ca |
| dc.type | info:eu-repo/semantics/article | ca |
| dc.type | info:eu-repo/semantics/publishedVersion | ca |
| dc.rights.accessLevel | info:eu-repo/semantics/openAccess | |
| dc.embargo.terms | cap | ca |
| dc.subject.udc | 539 | |
| dc.identifier.doi | https://doi.org/10.1007/JHEP07(2014)103 | ca |
Ficheros en el ítem
Este ítem aparece en la(s) siguiente(s) colección(ones)
Excepto si se señala otra cosa, la licencia del ítem se describe como http://creativecommons.org/licenses/by/4.0/
