Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Klein Gordon Particle Captured by Embedded Curves   In the present work, a Klein Gordon particle with singular interactions
supported on embedded curves on Riemannian manifolds is discussed from a more
direct and physical perspective, via the heat kernel approach. It is shown that
the renormalized problem is well-defined, and the ground state energy is unique
and finite. The renormalization group invariance of the model is discussed, and
it is observed that the model is asymptotically free.

34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio