Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the physical field generated by rotating masses in Poincare-gauge
  theory of gravity   It is shown that the gauge field in Poincare-gauge theory of gravity consists
in two parts: the translational gauge field (t -field), which is generated by
the energy-momentum current of external fields, and the rotational gauge field
(r -field), which is generated by the sum of the angular and spin momentum
currents of external fields. In connection with this the physical field
generating by rotating masses should exist.

8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph