%0 Journal Article
%A Maekelae, Toni
%A Hoang, André
%A Lipka, Katerina
%A Moch, Sven-Olaf
%T Investigation of the scale dependence in the MSR and ―MS top quark mass schemes for the t―t invariant mass differential cross section using LHC data
%J Journal of high energy physics
%V 09
%N 9
%@ 1126-6708
%C Trieste
%I SISSA
%M PUBDB-2023-00006
%M DESY-23-001
%M arXiv:2301.03546
%M UWThPh-2023-1
%P 037
%D 2023
%Z 19 pages, 6 figures
%X The computation of the single-differential top quark-antiquark pair (t―t) production cross section at NLO in the fixed-order expansion is examined consistently using the MSR and ―MS short-distance top quark mass schemes. A thorough investigation of the dependence of the t―t invariant mass spectrum on the renormalization scales R and μ<sub>m</sub> of the MSR mass m<sub>t</sub><sup>MSR</sup>(R) and ―MS mass ―m<sub>t</sub>(μ<sub>m</sub>), respectively, is carried out. We demonstrate that a scale choice of R ∼ 80 GeV is important for the stability of the cross-section predictions for the low t―t invariant mass range, which is important for a reliable extraction of the top quark mass. Furthermore, a choice of semi-dynamical renormalization and factorization scales is preferred. These findings are expected to remain valid once non-relativistic quasi-bound state effects are included in the low invariant mass region.
%K top: mass (INSPIRE)
%K scale: factorization (INSPIRE)
%K differential cross section: mass (INSPIRE)
%K scale: renormalization (INSPIRE)
%K quark antiquark: pair (INSPIRE)
%K GeV (INSPIRE)
%K nonrelativistic (INSPIRE)
%K stability (INSPIRE)
%K interpretation of experiments: CERN LHC Coll (INSPIRE)
%K mass spectrum (INSPIRE)
%K scale dependence (INSPIRE)
%K Quark Masses (autogen)
%K Top Quark (autogen)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001066019300002
%R 10.1007/JHEP09(2023)037
%U https://bib-pubdb1.desy.de/record/491140