Measurement of the inclusive t¯t production cross section in the lepton + jets channel in pp collisions at ffiffi ps = 7 TeV with the ATLAS detector using support vector machines Atlas Collaboration Aguilar Saavedra, Juan Antonio Rodríguez Chala, Mikael A measurement of the top quark pair-production cross section in the lepton þ jets decay channel is presented. It is based on 4.6 fb−1 of ffiffiffisp ¼ 7 TeV pp collision data collected during 2011 by the ATLAS experiment at the CERN Large Hadron Collider. A three-class, multidimensional event classifier based on support vector machines is used to differentiate t¯t events from backgrounds. The t¯t production cross section is found to be σt¯t ¼ 168.5 0.7ðstatÞ þ6.2 −5.9 ðsystÞ þ3.4 −3.2 ðlumiÞ pb. The result is consistent with the Standard Model prediction based on QCD calculations at next-to-next-to-leading ord 2023-11-03T09:12:24Z 2023-11-03T09:12:24Z 2023-08-18 journal article Abazov, V. M., Abbott, B., Acharya, B. S., Adams, M., Adams, T., Agnew, J. P., ... & Hensel, C. (2016). Measurement of the inclusive t t¯ production cross section in p p¯ collisions at s= 1.96 TeV and determination of the top quark pole mass. Physical Review D, 94(9), 092004.[https://doi.org/10.1103/PhysRevD.108.032014] https://hdl.handle.net/10481/85437 10.1103/PhysRevD.108.032014 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional American Physical Society