Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of In-Medium NN Cross Sections on Particle Production   The in-medium modification of nucleon-nucleon (NN) cross sections is
investigated by means of particle production in heavy ion collisions (HIC) at
intermediate energies. In particular, the density dependence of the {\it
inelastic} cross sections considerably affects the pion and kaon yields and
their rapidity distributions. However, the $(\pi^{-}/\pi^{+})$- and
$(K^{+}/K^{0})$-ratios depend only moderately on the in-medium behavior of the
inelastic cross sections. It turns out that particle ratios seem to be robust
observables in determining the nuclear equation of state (EoS) and,
particularly, its isovector sector.

17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs