Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exclusive Rho Rho Production in Tagged Gamma-Gamma Interactions at LEP   Exclusive rho rho production in two-photon collisions between a quasi-real,
gamma, and a virtual, gamma*, photons is studied at LEP at centre-of-mass
energies 89 GeV < sqrt{s} < 209 GeV with a total integrated luminosity of 854.7
pb-1. The cross sections of the gamma gamma* -> rho rho processes are
determined as a function of the photon virtuality, Q^2, and the two-photon
centre-of-mass energy, Wgg, in the kinematic region: 0.2 GeV^2 < Q^2 < 30 GeV^2
and 1.1 GeV < Wgg < 3 GeV.

16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con