Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Equations of motion in scalar-tensor theories of gravity: A covariant
  multipolar approach   We discuss the dynamics of extended test bodies for a large class of
scalar-tensor theories of gravitation. A covariant multipolar
Mathisson-Papapetrou-Dixon type of approach is used to derive the equations of
motion in a systematic way for both Jordan and Einstein formulations of these
theories. The results obtained provide the framework to experimentally test
scalar-tensor theories by means of extended test bodies.

3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph