Abstract
We present an up-to-date overview of the problem of top quark mass determination. We assess the need for precision in the top mass extraction in the LHC era together with the main theoretical and experimental issues arising in precision top mass determination. We collect and document existing results on top mass determination at hadron colliders and map the prospects for future precision top mass determination at e+e- colliders. We present a collection of estimates for the ultimate precision of various methods for top quark mass extraction at the LHC.
Highlights
The precision with which we determine the top quark mass impacts our understanding of several phenomena
We present an up-to-date overview of the problem of top quark mass determination
We assess the need for precision in the top mass extraction in the LHC era together with the main theoretical and experimental issues arising in precision top mass determination
Summary
The precision with which we determine the top quark mass impacts our understanding of several phenomena. A reliable interpretation of top mass measurements requires understanding the connection between the theory prediction, in a given top mass scheme, and the experimental observable as shown schematically in Eq (1). Precision top quark mass determinations at e+e− colliders have been studied for top pair production near threshold [19,20,21,22] and in the boosted regime [16,23]. If the perturbative relation between a processspecific mass and another “universal” mass (like the pole or MS mass) is not known with sufficiently high accuracy, or does not converge well, even a very precise determination of the value of this particular process-specific mass cannot be used in other processes. Unless explicitly specified, when in the following we refer to the top mass we mean the top pole mass and its associated total uncertainty
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