Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Precision measurement of the top quark mass from M_{b l} distribution in
  t -> b l \nu decays   The method of the top quark mass measurement from $M_{b l}$ distribution in
$t \to b l \nu$ decays can be considerably improved if applying the technique
of moments and proceeding to moments of high degree. At the LHC this allows one
to reduce the systematic and statistical errors of the top mass by more than a
factor of two.

32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys