Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatial 't Hooft loop to cubic order in hot QCD   Spatial 't Hooft loops of strength k measure the qualitative change in the
behaviour of electric colour flux in confined and deconfined phase of SU (N)
gauge theory. They show an area law in the deconfined phase, known analytica
lly to two loop order with a ``k-scaling'' law k(N-k). In this paper we comput
e the O(g^3) correction to the tension. It is due to neutral gluon fields that
get their mass through interaction with the wall. The simple k-scaling is lost
in cubic order. The generic problem of non-convexity shows up in this order an
d the cure is provided. The result for large N is explicitely given. We show
tha t nonperturbative effects appear at O(g^5).

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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
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The categories of this paper are: gr-qc