Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Top quark mass determination near t\bar{t} threshold at lepton colliders   Future e^+ e^- linear colliders will enable us to determine the top quark
mass with high accuracy from the measurement of the 1S peak position of
(remnant of) toponium. The estimated statistical error in this measurement is
about 50 MeV with integrated luminosity of 30 ${\rm fb^{-1}}$. We calculate
${\cal O}(\alpha_s^5 m)$ corrections to the quarkonium 1S energy spectrum in
the large-$\beta_0$ approximation to reduce theoretical uncertainties below the
corresponding experimental error. We discuss the significance of the ${\cal
O}(\alpha_s^5 m)$ corrections and estimate theoretical uncertainties of our
prediction.

24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat