Measurement of the Λb0 → J/ψΛ angular distribution and the Λb0 polarisation in pp collisions
| dc.contributor.author | LHCb Collaboration | |
| dc.contributor.author | Alfonso Albero, Alejandro | |
| dc.contributor.author | Calvo Gómez, Míriam | |
| dc.contributor.author | Camboni, Alessandro | |
| dc.contributor.author | Coquereau, Samuel | |
| dc.contributor.author | Garrido Beltrán, Lluís | |
| dc.contributor.author | Gascón Fora, David | |
| dc.contributor.author | Gironella Gironell, Pere | |
| dc.contributor.author | Golobardes, Elisabet | |
| dc.contributor.author | Graciani Díaz, Ricardo | |
| dc.contributor.author | Graugés Pous, Eugeni | |
| dc.contributor.author | Manera Escalero, R. | |
| dc.contributor.author | Marin Benito, Carla | |
| dc.contributor.author | Vázquez Gómez, Ricard | |
| dc.contributor.author | Vilasis-Cardona, Xavier | |
| dc.date.accessioned | 2022-05-03T16:22:51Z | |
| dc.date.available | 2022-05-03T16:22:51Z | |
| dc.date.issued | 2020-06-17 | |
| dc.date.updated | 2022-05-03T16:22:51Z | |
| dc.description.abstract | This paper presents an analysis of the Λ0b→ J/ψΛ angular distribution and the transverse production polarisation of Λ0b baryons in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The measurements are performed using data corresponding to an integrated luminosity of 4.9 fb−1, collected with the LHCb experiment. The polarisation is determined in a fiducial region of Λ0b transverse momentum and pseudorapidity of 1 < pT < 20 GeV/c and 2 < η < 5, respectively. The data are consistent with Λ0b baryons being produced unpolarised in this region. The parity-violating asymmetry parameter of the Λ → pπ− decay is also determined from the data and its value is found to be consistent with a recent measurement by the BES III collaboration. | |
| dc.format.extent | 30 p. | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.idgrec | 710237 | |
| dc.identifier.issn | 1126-6708 | |
| dc.identifier.uri | https://hdl.handle.net/2445/185289 | |
| dc.language.iso | eng | |
| dc.publisher | Springer Verlag | |
| dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1007/JHEP06(2020)110 | |
| dc.relation.ispartof | Journal of High Energy Physics, 2020, num. 110 | |
| dc.relation.uri | https://doi.org/10.1007/JHEP06(2020)110 | |
| dc.rights | cc-by (c) LHCb Collaboration et al., 2020 | |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | |
| dc.subject.classification | Hadrons | |
| dc.subject.classification | Gran Col·lisionador d'Hadrons | |
| dc.subject.classification | Física de partícules | |
| dc.subject.classification | Experiments | |
| dc.subject.other | Hadrons | |
| dc.subject.other | Large Hadron Collider (France and Switzerland) | |
| dc.subject.other | Particle physics | |
| dc.subject.other | Experiments | |
| dc.title | Measurement of the Λb0 → J/ψΛ angular distribution and the Λb0 polarisation in pp collisions | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion |
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