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dc.contributor.author | LHCb Collaboration |
dc.contributor.author | Adeva Andany, Bernardo |
dc.contributor.author | Álvarez Cartelle, Paula |
dc.contributor.author | Dosil Suárez, Álvaro |
dc.contributor.author | Fernández Albor, Víctor Manuel |
dc.contributor.author | Gallas Torreira, Abraham Antonio |
dc.contributor.author | Hernando Morata, José Ángel |
dc.contributor.author | Pazos Álvarez, Antonio |
dc.contributor.author | Pérez Trigo, Eliseo |
dc.contributor.author | Plo Casasus, Máximo |
dc.contributor.author | Rodríguez Pérez, Pablo |
dc.contributor.author | Romero Vidal, Antonio |
dc.contributor.author | Sanmartín Sedes, Brais |
dc.contributor.author | Seco Miguélez, Marcos Antonio |
dc.contributor.author | Vázquez Regueiro, Pablo |
dc.contributor.author | Vázquez Sierra, Carlos |
dc.date.accessioned | 2020-04-30T11:04:32Z |
dc.date.available | 2020-04-30T11:04:32Z |
dc.date.issued | 2014 |
dc.identifier.citation | Aaij, R., Adeva, B., Adinolfi, M. et al. Study of the kinematic dependences of Λ 0b production in pp collisions and a measurement of the Λ 0b → Λ +c π − branching fraction. J. High Energ. Phys. 2014, 143 (2014). https://doi.org/10.1007/JHEP08(2014)143 |
dc.identifier.issn | 1029-8479 |
dc.identifier.uri | http://hdl.handle.net/10347/21935 |
dc.description.abstract | The kinematic dependences of the relative production rates, fΛ0b/fd, of Λ 0b baryons and B 0 mesons are measured using Λ 0b → Λ +c π − and B¯0 →D+π− decays. The measurements use proton-proton collision data, corresponding to an integrated luminosity of 1 fb−1 at a centre-of-mass energy of 7 TeV, recorded in the forward region with the LHCb experiment. The relative production rates are observed to depend on the transverse momentum, p T, and pseudorapidity, η, of the beauty hadron, in the studied kinematic region 1.5 < p T < 40 GeV/c and 2 < η < 5. Using a previous LHCb measurement of fΛ0b/fd in semileptonic decays, the branching fraction ℬ(Λ 0b → Λ +c π −) = (4.30 ± 0.03 + 0.12− 0.11 ± 0.26 ± 0.21) × 10− 3 is obtained, where the first uncertainty is statistical, the second is systematic, the third is from the previous LHCb measurement of fΛ0b/fd and the fourth is due to the b B¯0 →D+π− branching fraction. This is the most precise measurement of a Λ 0b branching fraction to date. |
dc.language.iso | eng |
dc.publisher | Springer |
dc.rights | © CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 |
dc.subject | Hadron-Hadron Scattering |
dc.subject | B physics |
dc.subject | Heavy quark production |
dc.subject | Branching fraction |
dc.subject | Particle and resonance production |
dc.title | Study of the kinematic dependences of Λ 0b production in pp collisions and a measurement of the Λ 0b → Λ +c π − branching fraction |
dc.type | journal article |
dc.identifier.doi | 10.1007/JHEP08(2014)143 |
dc.relation.publisherversion | https://doi.org/10.1007/JHEP08(2014)143 |
dc.type.hasVersion | VoR |
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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© CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
© CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.