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t t ¯ b b ¯ at the LHC: on the size of corrections and b -jet definitions
Abstract: We report on the calculation of the next-to-leading order QCD corrections to the production of a tt¯ pair in association with two heavy-flavour jets. We concentrate on the di-lepton tt¯ decay channel at the LHC with s = 13 TeV. The computation is based on pp → e+νeμ−ν¯μbb¯bb¯ matrix elements and includes all resonant and non-resonant diagrams, interferences and off-shell effects of the top quark and the W gauge boson. As it is customary for such studies, results are presented in thedoi:10.17863/cam.78471 fatcat:p22jwukxnbcjlnf4aoapkyraqy