{"title": "Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in $\\sqrt{s}$ = 8 TeV proton-proton collisions using the ATLAS detector", "issued": {"date-parts": [["2025", "11", "17"]]}, "abstract": "CERN-LHC. Measurement of the differential cross-section for pair production of top quarks with high transverse momentum ($p_T$), with respect to the transverse momentum of the top quark, obtained using the lepton+jets channel. The hadronically decaying top quark is reconstructed as an anti-kt jet with radius parameter R=1.0 and identified with jet substructure techniques. The measurement is obtained using 20.3 fb-1 of proton--proton collisions at a center-of-mass energy of 8 TeV and is corrected at both particle-level, in a fiducial region close to the event selection, and at parton-level, for events with top quarks with $p_T$ > 300 GeV.\n\n\nThe fiducial region is defined as (see also Table 1 of the paper):\n- Exactly one lepton (e or mu)\n- p_T(lepton) > 25 GeV and |eta(lepton)| < 2.5\n- p_T(anti-kt R=0.4 jets) > 25 GeV and |eta(anti-kt R=0.4 jets)| < 2.5\n- MET > 20 GeV and MET+MTW > 60 GeV (MTW is the transverse mass between the lepton and the MET)\n- at least one anti-kt R=0.4 jets within Delta-R < 1.5 from the lepton\n- at least one anti-kt R=1.0 jets with p_T > 300 GeV, mass > 100 GeV, sqrt(d_12) > 40 GeV (sqrt(d_12) is the first splitting scale)\n- $\\Delta R$(anti-kt R=1.0 jet, anti-kt R=0.4 jet) > 1.5 and $\\Delta \\phi$(anti-kt R=1.0 jet, lepton) > 2.3\n- At least one of the anti-kt R=0.4 jets is b-tagged among: (a) the leading jet within  $\\Delta R$ < 1.5 from the lepton; (b) one jet within $\\Delta R$ < 1.0 from anti-kt R=1.0 jet axis.", "author": [{"family": " Georges Aad"}, {"family": " Brad Abbott", "uri": "http://orcid.org/"}, {"family": " Jalal Abdallah", "uri": "http://orcid.org/"}, {"family": " Ovsat Abdinov", "uri": "http://orcid.org/"}, {"family": " Rosemarie Aben", "uri": "http://orcid.org/"}, {"family": " Maris Abolins", "uri": "http://orcid.org/"}, {"family": " Ossama AbouZeid", "uri": "http://orcid.org/"}, {"family": " Halina Abramowicz", "uri": "http://orcid.org/"}, {"family": " Henso Abreu", "uri": "http://orcid.org/"}, {"family": " Ricardo Abreu", "uri": "http://orcid.org/"}], "type": "dataset", "id": "inspirehep_951d0679-a0b3-4c72-9664-f4449d0f9379", "URL": "https://service.tib.eu/vdataset/inspirehep_951d0679-a0b3-4c72-9664-f4449d0f9379"}