Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurements of the top quark mass using the ATLAS and CMS detectors at
  the LHC   The latest measurements of the top quark mass obtained by the ATLAS and CMS
experiments at the LHC for centre-of-mass energies of 7 and 8 TeV are
presented. The mass of the top quark is measured using several methods and
channels, including the reconstructed invariant mass distribution of the top
quark and shapes of top quark decay distributions. Measurements based on the
inclusive tt-bar cross section and novel observables based on the differential
cross section in the tt-bar + 1 jet channel are also discussed. The results of
the various channels are combined and compared to the world average.

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The categories of this paper are: math
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
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The categories of this paper are: physics
11
The categories of this paper are: hep-lat
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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th