Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A novel and self-consistency analysis of the QCD running coupling
  $\alpha_s(Q)$ in both the perturbative and nonperturbative domains   The QCD coupling $\alpha_s$ is the most important parameter for understanding
the strong interactions among quarks and gluons. By using the well measured
effective coupling $\alpha^{g_1}_{s}(Q)$ defined from the Bjorken sum rules as
an explicit example, we suggest a novel way to fix the $\alpha_s$ at all
scales: The QCD light-front holographic model is adopted for the $\alpha_s$
infrared behavior, and the fixed-order pQCD prediction under the principle of
maximum conformality (PMC) is used for the high-energy scale behavior. By
applying the PMC, a precise renormalization scheme-and-scale independent
perturbative series can be achieved. By further using the physical $V$-scheme,
we observe that a self-consistent and precise $\alpha_s$ running behavior in
both the perturbative and the nonperturbative domains with a smooth transition
from small to large scales can be achieved.

3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc