Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/162297
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dc.contributor.authorLHCb Collaboration-
dc.contributor.authorAlfonso Albero, Alejandro-
dc.contributor.authorCalvo Gómez, Míriam-
dc.contributor.authorCamboni, Alessandro-
dc.contributor.authorCoquereau, Samuel-
dc.contributor.authorGarrido Beltrán, Lluís-
dc.contributor.authorGascón Fora, David-
dc.contributor.authorGironella Gironell, Pere-
dc.contributor.authorGraciani Díaz, Ricardo-
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorVilasis-Cardona, Xavier-
dc.date.accessioned2020-05-25T13:23:07Z-
dc.date.available2020-05-25T13:23:07Z-
dc.date.issued2019-05-06-
dc.identifier.issn1126-6708-
dc.identifier.urihttp://hdl.handle.net/2445/162297-
dc.description.abstractAn amplitude analysis of B0 → (π+π−)(K+π−) decays is performed in the two-body invariant mass regions 300 < m(π+π−) < 1100 MeV/c2, accounting for the ρ0, ω, f0(500), f0(980) and f0(1370) resonances, and 750 < m(K+π−) < 1200 MeV/c2, which is dominated by the K*(892)0 meson. The analysis uses 3 fb−1 of proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The CP averages and asymmetries are measured for the magnitudes and phase differences of the con- tributing amplitudes. The CP-averaged longitudinal polarisation fractions of the vector-vector modes are found to be f~0ρK∗ = 0.164 ± 0.015 ± 0.022 and f~0ωK∗ = 0.68 ± 0.17 ± 0.16, and their CP asymmetries, A0ρK∗ = −0.62 ± 0.09 ± 0.09 and A0ωK∗ = −0.13 ± 0.27 ± 0.13, where the first uncertainty is statistical and the second systematic.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherSpringer Verlag-
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1007/JHEP05(2019)026-
dc.relation.ispartofJournal of High Energy Physics, 2019, p. 26-
dc.relation.urihttps://doi.org/10.1007/JHEP05(2019)026-
dc.rightscc-by (c) LHCb Collaboration et al., 2019-
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es-
dc.subject.classificationHadrons-
dc.subject.classificationPolarització (Física nuclear)-
dc.subject.classificationFísica de partícules-
dc.subject.classificationExperiments-
dc.subject.otherHadrons-
dc.subject.otherPolarization (Nuclear physics)-
dc.subject.otherParticle physics-
dc.subject.otherExperiments-
dc.titleStudy of the B 0 → ρ(770)°K * (892) 0 decay with an amplitude analysis of B 0 → (π + π − )(K + π − ) decays-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec696343-
dc.date.updated2020-05-25T13:23:07Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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