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- W4315589180 abstract "The computation of the single-differential top quark-antiquark pair ($mathrm{t}overline{mathrm{t}}$) production cross section at NLO in the fixed-order expansion is examined consistently using the MSR and $overline{textrm{MS}}$ short-distance top quark mass schemes. A thorough investigation of the dependence of different regions of the $mathrm{t}overline{mathrm{t}}$ invariant mass spectrum on the renormalization scales $R$ and $mu_m$ of the MSR mass $m_mathrm{t}^{textrm{MSR}}(R)$ and $overline{textrm{MS}}$ mass $overline{m}_mathrm{t}(mu_m)$, respectively, is carried out. We demonstrate that a scale choice of $Rsim 80$~GeV is important for the stability of the cross-section predictions for the low $mathrm{t}overline{mathrm{t}}$ 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." @default.
- W4315589180 created "2023-01-11" @default.
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- W4315589180 date "2023-01-09" @default.
- W4315589180 modified "2023-10-16" @default.
- W4315589180 title "Investigation of the scale dependence in the MSR and $overline{textrm{MS}}$ top quark mass schemes for the $mathrm{t}overline{mathrm{t}}$ invariant mass differential cross section using LHC data" @default.
- W4315589180 doi "https://doi.org/10.1007/jhep09(2023)037" @default.
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