A First Look at the Impact of NNNLO Theory Uncertainties on Top Mass Measurements at the ILC

Abstract

A scan of the top production threshold at a future electron-positron collider provides the possibility for a precise measurement of the top quark mass in theoretically well-defined mass schemes. With statistical uncertainties of 20 MeV or below, systematics will likely dominate the total uncertainty of the measurement. This contribution presents a first look at the impact of the renormalization scale uncertainties in recent NNNLO calculations of the top pair production cross section in the threshold region on the measurement of the top quark mass at the International Linear Collider.

6 pages, 4 figures, Talk presented at the International Workshop on Future Linear Colliders (LCWS15), Whistler, Canada, 2-6 November 2015; v3 corrected plotting problem in Fig 1 and figure label typos

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• Next-to-next-to-next-to-leading order QCD prediction for the top anti-top S-wave pair production cross section near threshold in e+ e- annihilation
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Cited by in corpus (9)

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• On the ultimate uncertainty of the top quark pole mass
• Near-threshold production of heavy quarks with QQbar_threshold
• Fully-differential Top-Pair Production at a Lepton Collider: From Threshold to Continuum
• Top physics at high-energy lepton colliders
• Scanning Strategies at the Top Threshold at ILC
• CLIC Detector and Physics Status
• Top physics at CLIC and ILC
• Top physics beyond the LHC