@misc{10481/95741, year = {2019}, month = {4}, url = {https://hdl.handle.net/10481/95741}, abstract = {This paper presents measurements of tt production in association with additional b-jets in pp collisions at the LHC at a centre-of-mass energy of 13TeV. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 36:1 fb-1. Fiducial cross-section measurements are performed in the dilepton and lepton-plus-jets tt decay channels. Results are presented at particle level in the form of inclusive cross-sections of tt final states with three and four b-jets as well as differential cross-sections as a function of global event properties and properties of b-jet pairs. The measured inclusive fiducial cross-sections generally exceed the ttbb predictions from various next-to-leading-order matrix element calculations matched to a parton shower but are compatible within the total uncertainties. The experimental uncertainties are smaller than the uncertainties in the predictions. Comparisons of state-of-the-art theoretical predictions with the differential measurements are shown and good agreement with data is found for most of them.}, organization = {CERN}, organization = {MINECO}, organization = {COST}, organization = {ERC}, organization = {ERDF}, organization = {Horizon 2020}, organization = {Marie Skłodowska-Curie Actions}, organization = {CERCA Programme Generalitat de Catalunya}, publisher = {Springer Nature}, keywords = {Hadron-Hadron scattering (experiments)}, keywords = {Heavy quark production}, title = {Measurements of inclusive and differential fiducial cross-sections of tt production with additional heavy-flavour jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector}, doi = {10.1007/JHEP04(2019)046}, author = {Aaboud, M. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration, /}, }