Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/185374
Title: | Measurement of forward top pair production in the dilepton channel in pp collisions at √s=13 TeV |
Author: | Alfonso Albero, Alejandro Calvo Gomez, M. Camboni, Alessandro Coquereau, Samuel Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla LHCb Collaboration |
Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
Issue Date: | 2018 |
Publisher: | Springer Verlag |
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 ∆R, between the two leptons must be larger than 0.1. The b-jet axis is required to be separated from both leptons by a ∆R 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. |
Note: | Reproducció del document publicat a: https://doi.org/10.1007/JHEP08(2018)174 |
It is part of: | Journal of High Energy Physics, 2018, vol. 2018, num. 8, p. 1-20 |
URI: | http://hdl.handle.net/2445/185374 |
Related resource: | https://doi.org/10.1007/JHEP08(2018)174 |
ISSN: | 1126-6708 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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