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dc.contributor.authorLHCb Collaboration
dc.contributor.authorAdeva Andany, Bernardo
dc.contributor.authorÁlvarez Cartelle, Paula
dc.contributor.authorDosil Suárez, Álvaro
dc.contributor.authorFernández Albor, Víctor Manuel
dc.contributor.authorGallas Torreira, Abraham Antonio
dc.contributor.authorHernando Morata, José Ángel
dc.contributor.authorPazos Álvarez, Antonio
dc.contributor.authorPérez Trigo, Eliseo
dc.contributor.authorPlo Casasus, Máximo
dc.contributor.authorRodríguez Pérez, Pablo
dc.contributor.authorRomero Vidal, Antonio
dc.contributor.authorSanmartín Sedes, Brais
dc.contributor.authorSeco Miguélez, Marcos Antonio
dc.contributor.authorVázquez Regueiro, Pablo
dc.contributor.authorVázquez Sierra, Carlos
dc.date.accessioned2020-04-30T11:04:32Z
dc.date.available2020-04-30T11:04:32Z
dc.date.issued2014
dc.identifier.citationAaij, 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.issn1029-8479
dc.identifier.urihttp://hdl.handle.net/10347/21935
dc.description.abstractThe 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.isoeng
dc.publisherSpringer
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.urihttps://creativecommons.org/licenses/by/4.0
dc.subjectHadron-Hadron Scattering
dc.subjectB physics
dc.subjectHeavy quark production
dc.subjectBranching fraction
dc.subjectParticle and resonance production
dc.titleStudy of the kinematic dependences of Λ 0b production in pp collisions and a measurement of the Λ 0b → Λ +c π − branching fraction
dc.typejournal article
dc.identifier.doi10.1007/JHEP08(2014)143
dc.relation.publisherversionhttps://doi.org/10.1007/JHEP08(2014)143
dc.type.hasVersionVoR
dc.rights.accessRightsopen access
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Física de Partículas
dc.contributor.affiliationUniversidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
dc.description.peerreviewedSI


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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.
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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.





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