Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Novel solutions of RG equations for alpha(s) and beta(alpha) in the
  large N_c limit   General solution of RG equations in the framework of background perturbation
theory is written down in the large N_c limit. A simplified (model)
approximation to the general solution is suggested which allows to write
beta(alpha) and alpha(beta) to any loop order. The resulting alpha_B(Q^2)
coincides asymptotically at large $|Q^2|$ with standard (free) alpha_s,
saturates at small Q^2 and has poles at time-like Q^2 in agreement with
analytic properties of physical amplitudes in the large N_c limit.

36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph