Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simultaneous decoupling of bottom and charm quarks   Parameters and light fields of the QCD Lagrangian with two heavy flavours, b
and c, are related to those in the low-energy effective theory without these
flavours, to three-loop accuracy taking into account the exact dependence on
m_c/m_b. Similar relations for bilinear quark currents are also considered.

31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex