Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interaction between Interpenetrating Charge Clouds and Collision of
  High-Energy Particles   Interaction between two interpenetrating spherically symmetric charge
distributions has been calculated. Limited range terms appear in addition to
the Coulomb potential. Its strength increases and range decreases with reducing
sizes of the interacting particles. Between two hydrogen atoms it yields the
Morse Potential. Soft core potentials are obtained between pairs of nucleons.
It has been shown that when high-energy particles approach one another the
potential between them increases with increasing relative speed. They are not
likely to disintegrate on impact. A possible way of smashing particles by
3-body collisions is indicated.
  PACS no. 11.90.+t 12.40.-y

22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph