Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universality and RG-improved gauge actions   The reference energy scale r_0 is evaluated for RG-improved Iwasaki and DBW2
gauge actions (N_f = 0), at values of the deconfinement coupling beta_c
corresponding to N_t = 3,4,6,8. The universality of r_0 T_c between Iwasa ki
and Wilson action is confirmed; the scaling behaviour and the influence of th e
violation of positivity in the extraction of effective masses are investigated.

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The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
1
The categories of this paper are: cs
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
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The categories of this paper are: eess
24
The categories of this paper are: dg-ga