Measurement of forward top pair production in the dilepton channel in pp collisions at √s=13 TeV
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| Title: | Measurement of forward top pair production in the dilepton channel in pp collisions at √s=13 TeV |
| Author: | LHCb Collaboration Adeva Andany, Bernardo Alves Junior, Antonio Augusto Boente García, Óscar Borsato, Martino Chobanova, Veronika Cid Vidal, Xabier Dosil Suárez, Álvaro Fernández Prieto, Antonio Gallas Torreira, Abraham Antonio García Plana, Beatriz Lucio Martínez, Miriam Martínez Santos, Diego Plo Casasus, Máximo Prisciandaro, James J. Ramos Pernas, Miguel Romero Vidal, Antonio Saborido Silva, Juan José Sanmartín Sedes, Brais Santamarina Ríos, Cibrán Vázquez Regueiro, Pablo Vieites Díaz, María |
| Affiliation: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
| Subject: | Hadron-Hadron scattering (experiments) | Top physics | Heavy quark production | Jet physics | QCD | |
| Date of Issue: | 2018 |
| Publisher: | Springer |
| Citation: | Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of forward top pair production in the dilepton channel in pp collisions at √s=13 TeV. J. High Energ. Phys. 2018, 174 (2018). https://doi.org/10.1007/JHEP08(2018)174 |
| Abstract: | Forward top quark pair production is studied in pp collisions in the μeb final state using a data sample corresponding to an integrated luminosity of 1.93 fb−1 collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. The cross-section is measured in a fiducial region where both leptons have a transverse momentum greater than 20 GeV and a pseudorapidity between 2.0 and 4.5. The quadrature sum of the azimuthal separation and the difference in pseudorapidities, denoted ΔR, between the two leptons must be larger than 0.1. The b-jet axis is required to be separated from both leptons by a ΔR of 0.5, and to have a transverse momentum in excess of 20 GeV and a pseudorapidity between 2.2 and 4.2. The cross-section is measured to be σtt¯=126±19(stat)±16(syst)±5(lumi)fb where the first uncertainty is statistical, the second is systematic, and the third is due to the luminosity determination. The measurement is compatible with the Standard Model prediction. |
| Publisher version: | https://doi.org/10.1007/JHEP08(2018)174 |
| URI: | http://hdl.handle.net/10347/22155 |
| DOI: | 10.1007/JHEP08(2018)174 |
| ISSN: | 1029-8479 |
| Rights: | © CERN, for the bene t of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative CommonsAttribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. |
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Except where otherwise noted, this item's license is described as © CERN, for the bene t of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative CommonsAttribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.