Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Higgs search at ATLAS   In this paper the results of Higgs searches at the ATLAS experiment,
operating at the LHC, are summarised. The results are based on data samples
corresponding to an integrated luminosity of up to 20.7 fb-1 at a
centre-of-mass energy of 8 TeV and 4.6 fb-1 at 7 TeV. The observation of a
Higgs boson is established. The mass of the new boson is measured to be 125.5
+/- 0.2 (stat) +0.5-0.6 (syst) GeV, and the ratio of the observed number of
events and expected from a Standard Model Higgs Boson is compatible with unity,
mu = 1.30 +/- 0.13 (stat) +/- 0.14 (sys). The spin and parity properties as
well as the couplings structure are compatible with those predicted for a
Standard Model Higgs Boson. No evidence of further Higgs states is found.

15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ