Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multiple scattering production of lepton-pairs in ultraperipheral
  heavy-ion collisions   Ultra-relativistic peripheral collisions of heavy ions at LHC can produce
copies of numbers of lepton pairs via the two-photon process. Since the energy
of the heavy ions is so high, multi-pair production cross-sections of the light
leptons especially electrons are quite large so that it is possible to measure
them experimentally. To calculate the multi-pair production probabilities,
first, we should have an impact parameter dependence cross-section. We have
obtained a well-behaved impact parameter dependence cross-section and by using
the Monte-Carlo methods, we have calculated multi-pair production
cross-sections of electrons and muons in Pb-Pb heavy-ion collisions at LHC
energies. We have also used some experimental restrictions in our calculation
to compare our findings with the experimental results.

23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics