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http://hdl.handle.net/2445/56284
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DC Field | Value | Language |
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dc.contributor.author | Abellan Beteta, Carlos | - |
dc.contributor.author | Calvo Gómez, Míriam | - |
dc.contributor.author | Camboni, Alessandro | - |
dc.contributor.author | Comerma Montells, Albert | - |
dc.contributor.author | Domingo Bonal, Francesc | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Grabalosa Gándara, Marc | - |
dc.contributor.author | Graciani Díaz, Ricardo | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | López Asamar, Elias | - |
dc.contributor.author | Pérez-Calero Yzquierdo, Antonio | - |
dc.contributor.author | Picatoste Olloqui, Eduardo | - |
dc.contributor.author | Pie Valls, B. (Blai) | - |
dc.contributor.author | Potterat, Cédric | - |
dc.contributor.author | Rives Molina, Vicente José | - |
dc.contributor.author | Ruiz, Hugo (Ruiz Pérez) | - |
dc.contributor.author | Vázquez Gómez, Ricard | - |
dc.contributor.author | Vilasis-Cardona, Xavier | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2014-07-25T07:50:12Z | - |
dc.date.available | 2014-07-25T07:50:12Z | - |
dc.date.issued | 2013-01 | - |
dc.identifier.issn | 1126-6708 | - |
dc.identifier.uri | http://hdl.handle.net/2445/56284 | - |
dc.description.abstract | A measurement of the inclusive Z → ττ cross-section in pp collisions at s√=7TeV is presented based on a dataset of 1.0 fb−1 collected by the LHCb detector. Candidates for Z → τ τ decays are identified through reconstructed final states with two muons, a muon and an electron, a muon and a hadron, or an electron and a hadron. The production cross-section for Z bosons, with invariant mass between 60 and 120 GeV/c 2, which decay to τ leptons with transverse momenta greater than 20 GeV/c and pseudorapidities between 2.0 and 4.5, is measured to be σ pp→Z→ττ = 71.4 ± 3.5 ± 2.8 ± 2.5 pb; the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the integrated luminosity. The ratio of the cross-sections for Z → τ τ to Z → μμ is determined to be 0.93 ± 0.09, where the uncertainty is the combination of statistical, systematic, and luminosity uncertainties of the two measurements. | - |
dc.format.extent | 20 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Springer Verlag | - |
dc.relation.isformatof | Reproducció del document publicat a: http://dx.doi.org/10.1007/JHEP01(2013)111 | - |
dc.relation.ispartof | Journal of High Energy Physics, 2013, vol. 1301 , num. 111, p. 1-19 | - |
dc.relation.uri | http://dx.doi.org/10.1007/JHEP01(2013)111 | - |
dc.rights | cc-by (c) The LHCb Collaboration, 2013 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/ | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Hadrons | - |
dc.subject.classification | Teoria quàntica de camps | - |
dc.subject.classification | Gravitació | - |
dc.subject.classification | Teoria quàntica | - |
dc.subject.classification | Relativitat (Física) | - |
dc.subject.other | Hadrons | - |
dc.subject.other | Quantum field theory | - |
dc.subject.other | Gravitation | - |
dc.subject.other | Quantum theory | - |
dc.subject.other | Relativity (Physics) | - |
dc.title | A study of the Z production cross-section in pp collisions at s√=7 TeV using tau final states | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 619644 | - |
dc.date.updated | 2014-07-25T07:50:12Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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619644.pdf | 555.04 kB | Adobe PDF | View/Open |
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