Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low-energy electron scattering in a strong Coulomb field   The analytic expression for the cross section of low-energy electron
scattering in a strong Coulomb field is obtained. It is shown that in a wide
energy region this cross section differs essentially from that obtained in the
first Born approximation.

24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ