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dc.contributor.author | LHCb Collaboration |
dc.contributor.author | Adeva Andany, Bernardo |
dc.contributor.author | Dosil Suárez, Álvaro |
dc.contributor.author | Fernández Albor, Víctor Manuel |
dc.contributor.author | Gallas Torreira, Abraham Antonio |
dc.contributor.author | García Pardiñas, Julián |
dc.contributor.author | Hernando Morata, José Ángel |
dc.contributor.author | Plo Casasus, Máximo |
dc.contributor.author | Romero Vidal, Antonio |
dc.contributor.author | Saborido Silva, Juan José |
dc.contributor.author | Sanmartín Sedes, Brais |
dc.contributor.author | Santamarina Ríos, Cibrán |
dc.contributor.author | Vázquez Regueiro, Pablo |
dc.contributor.author | Vieites Díaz, María |
dc.date.accessioned | 2020-04-28T09:07:29Z |
dc.date.available | 2020-04-28T09:07:29Z |
dc.date.issued | 2015 |
dc.identifier.citation | LHCb Collaboration et al. (2015). Observation of the decay B0s→ψ(2S)K+π−. Physics Letters B, 747, 484-494 |
dc.identifier.issn | 0370-2693 |
dc.identifier.uri | http://hdl.handle.net/10347/21834 |
dc.description.abstract | The decay B0s→ψ(2S)K+π−is observed using a data set corresponding to an integrated luminosity of 3.0fb−1collected by the LHCb experiment in ppcollisions at centre-of-mass energies of 7 and 8 TeV. The branching fraction relative to the B0→ψ(2S)K+π−decay mode is measured to be B(B0s→ψ(2S)K+π−)B(B0→ψ(2S)K+π−)=5.38±0.36(stat)±0.22(syst)±0.31(fs/fd)%, where fs/fdindicates the uncertainty due to the ratio of probabilities for a bquark to hadronise into a B0sor B0meson. Using an amplitude analysis, the fraction of decays proceeding via an intermediate K∗(892)0meson is measured to be 0.645 ±0.049 (stat) ±0.049 (syst)and its longitudinal polarisation fraction is 0.524 ±0.056 (stat) ±0.029 (syst). The relative branching fraction for this component is determined to be B(B0s→ψ(2S)K∗(892)0)B(B0→ψ(2S)K∗(892)0)=5.58±0.57(stat)±0.40(syst)±0.32(fs/fd)%. In addition, the mass splitting between the B0sand B0mesons is measured as M(B0s)−M(B0)=87.45±0.44(stat)±0.09(syst)MeV/c2 |
dc.language.iso | eng |
dc.publisher | Elsevier |
dc.rights | ©2015 CERN for the benefit of the LHCb Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3 |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ |
dc.title | Observation of the decay B0s→ψ(2S)K+π− |
dc.type | journal article |
dc.identifier.doi | 10.1016/j.physletb.2015.06.038 |
dc.relation.publisherversion | https://doi.org/10.1016/j.physletb.2015.06.038 |
dc.type.hasVersion | VoR |
dc.identifier.essn | 1873-2445 |
dc.rights.accessRights | open access |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Departamento de Física de Partículas |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
dc.description.peerreviewed | SI |
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